From 3e0dcbb0ae7db50bd60e31950cc05fb2ef3ee392 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Mon, 2 Jan 2023 04:53:37 -0500
Subject: [PATCH] aaaaaaaa

---
 src/engine/platform/amiga.cpp     |  8 ++++----
 src/engine/platform/amiga.h       |  2 +-
 src/engine/platform/arcade.cpp    | 14 +++++++-------
 src/engine/platform/arcade.h      |  2 +-
 src/engine/platform/ay.cpp        | 14 +++++++-------
 src/engine/platform/ay.h          |  2 +-
 src/engine/platform/ay8930.cpp    | 10 +++++-----
 src/engine/platform/ay8930.h      |  2 +-
 src/engine/platform/bubsyswsg.cpp |  6 +++---
 src/engine/platform/bubsyswsg.h   |  2 +-
 src/engine/platform/c64.cpp       |  8 ++++----
 src/engine/platform/c64.h         |  2 +-
 src/engine/platform/dummy.cpp     |  6 +++---
 src/engine/platform/dummy.h       |  2 +-
 src/engine/platform/fds.cpp       |  6 +++---
 src/engine/platform/fds.h         |  2 +-
 src/engine/platform/ga20.cpp      |  4 ++--
 src/engine/platform/ga20.h        |  2 +-
 src/engine/platform/gb.cpp        |  6 +++---
 src/engine/platform/gb.h          |  2 +-
 src/engine/platform/genesis.cpp   | 10 +++++-----
 src/engine/platform/genesis.h     |  2 +-
 src/engine/platform/k007232.cpp   |  8 ++++----
 src/engine/platform/k007232.h     |  2 +-
 src/engine/platform/lynx.cpp      |  2 +-
 src/engine/platform/lynx.h        |  2 +-
 src/engine/platform/mmc5.cpp      |  4 ++--
 src/engine/platform/mmc5.h        |  2 +-
 src/engine/platform/msm5232.cpp   |  6 +++---
 src/engine/platform/msm5232.h     |  2 +-
 src/engine/platform/msm6258.cpp   | 10 +++++-----
 src/engine/platform/msm6258.h     |  2 +-
 src/engine/platform/msm6295.cpp   |  4 ++--
 src/engine/platform/msm6295.h     |  2 +-
 src/engine/platform/n163.cpp      |  4 ++--
 src/engine/platform/n163.h        |  2 +-
 src/engine/platform/namcowsg.cpp  |  2 +-
 src/engine/platform/namcowsg.h    |  2 +-
 src/engine/platform/nes.cpp       |  6 +++---
 src/engine/platform/nes.h         |  2 +-
 src/engine/platform/opl.cpp       |  6 +++---
 src/engine/platform/opl.h         |  2 +-
 src/engine/platform/opll.cpp      |  4 ++--
 src/engine/platform/opll.h        |  2 +-
 src/engine/platform/pce.cpp       |  6 +++---
 src/engine/platform/pce.h         |  2 +-
 src/engine/platform/pcmdac.cpp    | 14 +++++++-------
 src/engine/platform/pcmdac.h      |  2 +-
 src/engine/platform/pcspkr.cpp    | 16 ++++++++--------
 src/engine/platform/pcspkr.h      |  2 +-
 src/engine/platform/pet.cpp       | 10 +++++-----
 src/engine/platform/pet.h         |  2 +-
 src/engine/platform/pokemini.cpp  |  6 +++---
 src/engine/platform/pokemini.h    |  2 +-
 src/engine/platform/pokey.cpp     |  2 +-
 src/engine/platform/pokey.h       |  2 +-
 src/engine/platform/pong.cpp      |  6 +++---
 src/engine/platform/pong.h        |  2 +-
 src/engine/platform/qsound.cpp    |  6 +++---
 src/engine/platform/qsound.h      |  2 +-
 src/engine/platform/rf5c68.cpp    |  4 ++--
 src/engine/platform/rf5c68.h      |  2 +-
 src/engine/platform/saa.cpp       | 10 +++++-----
 src/engine/platform/saa.h         |  2 +-
 src/engine/platform/scc.cpp       |  4 ++--
 src/engine/platform/scc.h         |  2 +-
 src/engine/platform/segapcm.cpp   |  6 +++---
 src/engine/platform/segapcm.h     |  2 +-
 src/engine/platform/sms.cpp       | 10 +++++-----
 src/engine/platform/sms.h         |  2 +-
 src/engine/platform/snes.cpp      |  6 +++---
 src/engine/platform/snes.h        |  2 +-
 src/engine/platform/su.cpp        |  4 ++--
 src/engine/platform/su.h          |  2 +-
 src/engine/platform/swan.cpp      |  6 +++---
 src/engine/platform/swan.h        |  2 +-
 src/engine/platform/t6w28.cpp     |  6 +++---
 src/engine/platform/t6w28.h       |  2 +-
 src/engine/platform/tia.cpp       | 10 +++++-----
 src/engine/platform/tia.h         |  2 +-
 src/engine/platform/tx81z.cpp     |  6 +++---
 src/engine/platform/tx81z.h       |  2 +-
 src/engine/platform/vb.cpp        |  6 +++---
 src/engine/platform/vb.h          |  2 +-
 src/engine/platform/vera.cpp      |  6 +++---
 src/engine/platform/vera.h        |  2 +-
 src/engine/platform/vic20.cpp     |  6 +++---
 src/engine/platform/vic20.h       |  2 +-
 src/engine/platform/vrc6.cpp      |  4 ++--
 src/engine/platform/vrc6.h        |  2 +-
 src/engine/platform/x1_010.cpp    |  6 +++---
 src/engine/platform/x1_010.h      |  2 +-
 src/engine/platform/ym2203.cpp    |  6 +++---
 src/engine/platform/ym2203.h      |  2 +-
 src/engine/platform/ym2608.cpp    | 10 +++++-----
 src/engine/platform/ym2608.h      |  2 +-
 src/engine/platform/ym2610.cpp    | 10 +++++-----
 src/engine/platform/ym2610.h      |  2 +-
 src/engine/platform/ym2610b.cpp   | 10 +++++-----
 src/engine/platform/ym2610b.h     |  2 +-
 src/engine/platform/ymz280b.cpp   |  6 +++---
 src/engine/platform/ymz280b.h     |  2 +-
 src/engine/platform/zxbeeper.cpp  |  6 +++---
 src/engine/platform/zxbeeper.h    |  2 +-
 104 files changed, 233 insertions(+), 233 deletions(-)

diff --git a/src/engine/platform/amiga.cpp b/src/engine/platform/amiga.cpp
index 4e588e7d..6f70a310 100644
--- a/src/engine/platform/amiga.cpp
+++ b/src/engine/platform/amiga.cpp
@@ -75,9 +75,9 @@ const char** DivPlatformAmiga::getRegisterSheet() {
     if (chan[i+1].freq<AMIGA_DIVIDER) chan[i+1].freq=AMIGA_DIVIDER; \
   }
 
-void DivPlatformAmiga::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformAmiga::acquire(short** buf, size_t len) {
   static int outL, outR, output;
-  for (size_t h=start; h<start+len; h++) {
+  for (size_t h=0; h<len; h++) {
     outL=0;
     outR=0;
     for (int i=0; i<4; i++) {
@@ -142,8 +142,8 @@ void DivPlatformAmiga::acquire(short* bufL, short* bufR, size_t start, size_t le
     filter[0][1]+=(filtConst*(filter[0][0]-filter[0][1]))>>12;
     filter[1][0]+=(filtConst*(outR-filter[1][0]))>>12;
     filter[1][1]+=(filtConst*(filter[1][0]-filter[1][1]))>>12;
-    bufL[h]=filter[0][1];
-    bufR[h]=filter[1][1];
+    buf[0][h]=filter[0][1];
+    buf[1][h]=filter[1][1];
   }
 }
 
diff --git a/src/engine/platform/amiga.h b/src/engine/platform/amiga.h
index c22ca1af..494b5da7 100644
--- a/src/engine/platform/amiga.h
+++ b/src/engine/platform/amiga.h
@@ -67,7 +67,7 @@ class DivPlatformAmiga: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
diff --git a/src/engine/platform/arcade.cpp b/src/engine/platform/arcade.cpp
index 22f5c293..3912921c 100644
--- a/src/engine/platform/arcade.cpp
+++ b/src/engine/platform/arcade.cpp
@@ -84,8 +84,8 @@ void DivPlatformArcade::acquire_nuked(short* bufL, short* bufR, size_t start, si
     if (o[1]<-32768) o[1]=-32768;
     if (o[1]>32767) o[1]=32767;
 
-    bufL[h]=o[0];
-    bufR[h]=o[1];
+    buf[0][h]=o[0];
+    buf[1][h]=o[1];
   }
 }
 
@@ -121,16 +121,16 @@ void DivPlatformArcade::acquire_ymfm(short* bufL, short* bufR, size_t start, siz
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
 
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
   }
 }
 
-void DivPlatformArcade::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformArcade::acquire(short** buf, size_t len) {
   if (useYMFM) {
-    acquire_ymfm(bufL,bufR,start,len);
+    acquire_ymfm(buf[0],buf[1],0,len);
   } else {
-    acquire_nuked(bufL,bufR,start,len);
+    acquire_nuked(buf[0],buf[1],0,len);
   }
 }
 
diff --git a/src/engine/platform/arcade.h b/src/engine/platform/arcade.h
index 2eb26cb7..f2ec0faf 100644
--- a/src/engine/platform/arcade.h
+++ b/src/engine/platform/arcade.h
@@ -64,7 +64,7 @@ class DivPlatformArcade: public DivPlatformOPM {
     friend void putDispatchChan(void*,int,int);
     friend void putDispatchChip(void*,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
diff --git a/src/engine/platform/ay.cpp b/src/engine/platform/ay.cpp
index b90e0f2a..4a2a4b59 100644
--- a/src/engine/platform/ay.cpp
+++ b/src/engine/platform/ay.cpp
@@ -169,7 +169,7 @@ void DivPlatformAY8910::checkWrites() {
   }
 }
 
-void DivPlatformAY8910::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformAY8910::acquire(short** buf, size_t len) {
   if (ayBufLen<len) {
     ayBufLen=len;
     for (int i=0; i<3; i++) {
@@ -184,8 +184,8 @@ void DivPlatformAY8910::acquire(short* bufL, short* bufR, size_t start, size_t l
       checkWrites();
 
       ay->sound_stream_update(ayBuf,1);
-      bufL[i+start]=ayBuf[0][0];
-      bufR[i+start]=bufL[i+start];
+      buf[0][i]=ayBuf[0][0];
+      buf[1][i]=buf[0][i];
 
       oscBuf[0]->data[oscBuf[0]->needle++]=sunsoftVolTable[31-(ay->lastIndx&31)]>>3;
       oscBuf[1]->data[oscBuf[1]->needle++]=sunsoftVolTable[31-((ay->lastIndx>>5)&31)]>>3;
@@ -198,11 +198,11 @@ void DivPlatformAY8910::acquire(short* bufL, short* bufR, size_t start, size_t l
 
       ay->sound_stream_update(ayBuf,1);
       if (stereo) {
-        bufL[i+start]=ayBuf[0][0]+ayBuf[1][0]+((ayBuf[2][0]*stereoSep)>>8);
-        bufR[i+start]=((ayBuf[0][0]*stereoSep)>>8)+ayBuf[1][0]+ayBuf[2][0];
+        buf[0][i]=ayBuf[0][0]+ayBuf[1][0]+((ayBuf[2][0]*stereoSep)>>8);
+        buf[1][i]=((ayBuf[0][0]*stereoSep)>>8)+ayBuf[1][0]+ayBuf[2][0];
       } else {
-        bufL[i+start]=ayBuf[0][0]+ayBuf[1][0]+ayBuf[2][0];
-        bufR[i+start]=bufL[i+start];
+        buf[0][i]=ayBuf[0][0]+ayBuf[1][0]+ayBuf[2][0];
+        buf[1][i]=buf[0][i];
       }
 
       oscBuf[0]->data[oscBuf[0]->needle++]=ayBuf[0][0]<<2;
diff --git a/src/engine/platform/ay.h b/src/engine/platform/ay.h
index a546baa8..ad8b4625 100644
--- a/src/engine/platform/ay.h
+++ b/src/engine/platform/ay.h
@@ -128,7 +128,7 @@ class DivPlatformAY8910: public DivDispatch {
   
   public:
     void setExtClockDiv(unsigned int eclk=COLOR_NTSC, unsigned char ediv=8);
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
diff --git a/src/engine/platform/ay8930.cpp b/src/engine/platform/ay8930.cpp
index 032fd69e..85eca751 100644
--- a/src/engine/platform/ay8930.cpp
+++ b/src/engine/platform/ay8930.cpp
@@ -164,7 +164,7 @@ void DivPlatformAY8930::checkWrites() {
   }
 }
 
-void DivPlatformAY8930::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformAY8930::acquire(short** buf, size_t len) {
   if (ayBufLen<len) {
     ayBufLen=len;
     for (int i=0; i<3; i++) {
@@ -179,11 +179,11 @@ void DivPlatformAY8930::acquire(short* bufL, short* bufR, size_t start, size_t l
 
     ay->sound_stream_update(ayBuf,1);
     if (stereo) {
-      bufL[i+start]=ayBuf[0][0]+ayBuf[1][0]+((ayBuf[2][0]*stereoSep)>>8);
-      bufR[i+start]=((ayBuf[0][0]*stereoSep)>>8)+ayBuf[1][0]+ayBuf[2][0];
+      buf[0][i]=ayBuf[0][0]+ayBuf[1][0]+((ayBuf[2][0]*stereoSep)>>8);
+      buf[1][i]=((ayBuf[0][0]*stereoSep)>>8)+ayBuf[1][0]+ayBuf[2][0];
     } else {
-      bufL[i+start]=ayBuf[0][0]+ayBuf[1][0]+ayBuf[2][0];
-      bufR[i+start]=bufL[i+start];
+      buf[0][i]=ayBuf[0][0]+ayBuf[1][0]+ayBuf[2][0];
+      buf[1][i]=buf[0][i];
     }
 
     oscBuf[0]->data[oscBuf[0]->needle++]=ayBuf[0][0]<<2;
diff --git a/src/engine/platform/ay8930.h b/src/engine/platform/ay8930.h
index b89ee6f5..0e60c350 100644
--- a/src/engine/platform/ay8930.h
+++ b/src/engine/platform/ay8930.h
@@ -131,7 +131,7 @@ class DivPlatformAY8930: public DivDispatch {
     friend void putDispatchChan(void*,int,int);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
diff --git a/src/engine/platform/bubsyswsg.cpp b/src/engine/platform/bubsyswsg.cpp
index 73fd967b..31869722 100644
--- a/src/engine/platform/bubsyswsg.cpp
+++ b/src/engine/platform/bubsyswsg.cpp
@@ -39,9 +39,9 @@ const char** DivPlatformBubSysWSG::getRegisterSheet() {
   return regCheatSheetBubSysWSG;
 }
 
-void DivPlatformBubSysWSG::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformBubSysWSG::acquire(short** buf, size_t len) {
   int chanOut=0;
-  for (size_t h=start; h<start+len; h++) {
+  for (size_t h=0; h<len; h++) {
     signed int out=0;
     // K005289 part
     k005289.tick();
@@ -68,7 +68,7 @@ void DivPlatformBubSysWSG::acquire(short* bufL, short* bufR, size_t start, size_
     if (out>32767) out=32767;
 
     //printf("out: %d\n",out);
-    bufL[h]=bufR[h]=out;
+    buf[0][h]=buf[1][h]=out;
   }
 }
 
diff --git a/src/engine/platform/bubsyswsg.h b/src/engine/platform/bubsyswsg.h
index 900a391a..d544c2ec 100644
--- a/src/engine/platform/bubsyswsg.h
+++ b/src/engine/platform/bubsyswsg.h
@@ -45,7 +45,7 @@ class DivPlatformBubSysWSG: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
diff --git a/src/engine/platform/c64.cpp b/src/engine/platform/c64.cpp
index 8091e179..4d1caf9a 100644
--- a/src/engine/platform/c64.cpp
+++ b/src/engine/platform/c64.cpp
@@ -63,9 +63,9 @@ const char** DivPlatformC64::getRegisterSheet() {
   return regCheatSheetSID;
 }
 
-void DivPlatformC64::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformC64::acquire(short** buf, size_t len) {
   int dcOff=isFP?0:sid.get_dc(0);
-  for (size_t i=start; i<start+len; i++) {
+  for (size_t i=0; i<len; i++) {
     if (!writes.empty()) {
       QueuedWrite w=writes.front();
       if (isFP) {
@@ -77,7 +77,7 @@ void DivPlatformC64::acquire(short* bufL, short* bufR, size_t start, size_t len)
       writes.pop();
     }
     if (isFP) {
-      sid_fp.clock(4,&bufL[i]);
+      sid_fp.clock(4,&buf[0][i]);
       if (++writeOscBuf>=4) {
         writeOscBuf=0;
         oscBuf[0]->data[oscBuf[0]->needle++]=(sid_fp.lastChanOut[0]-dcOff)>>5;
@@ -86,7 +86,7 @@ void DivPlatformC64::acquire(short* bufL, short* bufR, size_t start, size_t len)
       }
     } else {
       sid.clock();
-      bufL[i]=sid.output();
+      buf[0][i]=sid.output();
       if (++writeOscBuf>=16) {
         writeOscBuf=0;
         oscBuf[0]->data[oscBuf[0]->needle++]=(sid.last_chan_out[0]-dcOff)>>5;
diff --git a/src/engine/platform/c64.h b/src/engine/platform/c64.h
index 9bdabbe4..28cf5b29 100644
--- a/src/engine/platform/c64.h
+++ b/src/engine/platform/c64.h
@@ -79,7 +79,7 @@ class DivPlatformC64: public DivDispatch {
 
   void updateFilter();
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
diff --git a/src/engine/platform/dummy.cpp b/src/engine/platform/dummy.cpp
index 898809cc..28cb5d40 100644
--- a/src/engine/platform/dummy.cpp
+++ b/src/engine/platform/dummy.cpp
@@ -24,9 +24,9 @@
 
 #define CHIP_FREQBASE 2048
 
-void DivPlatformDummy::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformDummy::acquire(short** buf, size_t len) {
   int chanOut;
-  for (size_t i=start; i<start+len; i++) {
+  for (size_t i=0; i<len; i++) {
     int out=0;
     for (unsigned char j=0; j<chans; j++) {
       if (chan[j].active) {
@@ -44,7 +44,7 @@ void DivPlatformDummy::acquire(short* bufL, short* bufR, size_t start, size_t le
     }
     if (out<-32768) out=-32768;
     if (out>32767) out=32767;
-    bufL[i]=out;
+    buf[0][i]=out;
   }
 }
 
diff --git a/src/engine/platform/dummy.h b/src/engine/platform/dummy.h
index d3a1b91e..c12d494b 100644
--- a/src/engine/platform/dummy.h
+++ b/src/engine/platform/dummy.h
@@ -37,7 +37,7 @@ class DivPlatformDummy: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     void muteChannel(int ch, bool mute);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
diff --git a/src/engine/platform/fds.cpp b/src/engine/platform/fds.cpp
index e0047ace..bdae0c19 100644
--- a/src/engine/platform/fds.cpp
+++ b/src/engine/platform/fds.cpp
@@ -61,7 +61,7 @@ void DivPlatformFDS::acquire_puNES(short* bufL, short* bufR, size_t start, size_
     int sample=isMuted[0]?0:fds->snd.main.output;
     if (sample>32767) sample=32767;
     if (sample<-32768) sample=-32768;
-    bufL[i]=sample;
+    buf[0][i]=sample;
     if (++writeOscBuf>=32) {
       writeOscBuf=0;
       oscBuf->data[oscBuf->needle++]=sample<<1;
@@ -77,7 +77,7 @@ void DivPlatformFDS::acquire_NSFPlay(short* bufL, short* bufR, size_t start, siz
     int sample=isMuted[0]?0:(out[0]<<1);
     if (sample>32767) sample=32767;
     if (sample<-32768) sample=-32768;
-    bufL[i]=sample;
+    buf[0][i]=sample;
     if (++writeOscBuf>=32) {
       writeOscBuf=0;
       oscBuf->data[oscBuf->needle++]=sample<<1;
@@ -93,7 +93,7 @@ void DivPlatformFDS::doWrite(unsigned short addr, unsigned char data) {
   }
 }
 
-void DivPlatformFDS::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformFDS::acquire(short** buf, size_t len) {
   if (useNP) {
     acquire_NSFPlay(bufL,bufR,start,len);
   } else {
diff --git a/src/engine/platform/fds.h b/src/engine/platform/fds.h
index beabb641..a6e7862e 100644
--- a/src/engine/platform/fds.h
+++ b/src/engine/platform/fds.h
@@ -66,7 +66,7 @@ class DivPlatformFDS: public DivDispatch {
   void acquire_NSFPlay(short* bufL, short* bufR, size_t start, size_t len);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/ga20.cpp b/src/engine/platform/ga20.cpp
index bb29154a..990531b3 100644
--- a/src/engine/platform/ga20.cpp
+++ b/src/engine/platform/ga20.cpp
@@ -51,7 +51,7 @@ inline void DivPlatformGA20::chWrite(unsigned char ch, unsigned int addr, unsign
   }
 }
 
-void DivPlatformGA20::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformGA20::acquire(short** buf, size_t len) {
   if (ga20BufLen<len) {
     ga20BufLen=len;
     for (int i=0; i<4; i++) {
@@ -73,7 +73,7 @@ void DivPlatformGA20::acquire(short* bufL, short* bufR, size_t start, size_t len
     }
     short *buffer[4] = {&ga20Buf[0][h],&ga20Buf[1][h],&ga20Buf[2][h],&ga20Buf[3][h]};
     ga20.sound_stream_update(buffer, 1);
-    bufL[h]=(signed int)(ga20Buf[0][h]+ga20Buf[1][h]+ga20Buf[2][h]+ga20Buf[3][h])>>2;
+    buf[0][h]=(signed int)(ga20Buf[0][h]+ga20Buf[1][h]+ga20Buf[2][h]+ga20Buf[3][h])>>2;
     for (int i=0; i<4; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=ga20Buf[i][h];
     }
diff --git a/src/engine/platform/ga20.h b/src/engine/platform/ga20.h
index 5e64db77..9c67a9fd 100644
--- a/src/engine/platform/ga20.h
+++ b/src/engine/platform/ga20.h
@@ -74,7 +74,7 @@ class DivPlatformGA20: public DivDispatch, public iremga20_intf {
   void chWrite(unsigned char ch, unsigned int addr, unsigned char val);
   public:
     virtual u8 read_byte(u32 address) override;
-    virtual void acquire(short* bufL, short* bufR, size_t start, size_t len) override;
+    virtual void acquire(short** buf, size_t len) override;
     virtual int dispatch(DivCommand c) override;
     virtual void* getChanState(int chan) override;
     virtual DivMacroInt* getChanMacroInt(int ch) override;
diff --git a/src/engine/platform/gb.cpp b/src/engine/platform/gb.cpp
index 2cb64f4a..c2f301e2 100644
--- a/src/engine/platform/gb.cpp
+++ b/src/engine/platform/gb.cpp
@@ -61,7 +61,7 @@ const char** DivPlatformGB::getRegisterSheet() {
   return regCheatSheetGB;
 }
 
-void DivPlatformGB::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformGB::acquire(short** buf, size_t len) {
   for (size_t i=start; i<start+len; i++) {
     if (!writes.empty()) {
       QueuedWrite& w=writes.front();
@@ -70,8 +70,8 @@ void DivPlatformGB::acquire(short* bufL, short* bufR, size_t start, size_t len)
     }
 
     GB_advance_cycles(gb,16);
-    bufL[i]=gb->apu_output.final_sample.left;
-    bufR[i]=gb->apu_output.final_sample.right;
+    buf[0][i]=gb->apu_output.final_sample.left;
+    buf[1][i]=gb->apu_output.final_sample.right;
 
     for (int i=0; i<4; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=(gb->apu_output.current_sample[i].left+gb->apu_output.current_sample[i].right)<<6;
diff --git a/src/engine/platform/gb.h b/src/engine/platform/gb.h
index ce657fd1..8f70fecb 100644
--- a/src/engine/platform/gb.h
+++ b/src/engine/platform/gb.h
@@ -78,7 +78,7 @@ class DivPlatformGB: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/genesis.cpp b/src/engine/platform/genesis.cpp
index 5bc33950..ca88598a 100644
--- a/src/engine/platform/genesis.cpp
+++ b/src/engine/platform/genesis.cpp
@@ -186,8 +186,8 @@ void DivPlatformGenesis::acquire_nuked(short* bufL, short* bufR, size_t start, s
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
   }
 }
 
@@ -242,12 +242,12 @@ void DivPlatformGenesis::acquire_ymfm(short* bufL, short* bufR, size_t start, si
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
   }
 }
 
-void DivPlatformGenesis::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformGenesis::acquire(short** buf, size_t len) {
   if (useYMFM) {
     acquire_ymfm(bufL,bufR,start,len);
   } else {
diff --git a/src/engine/platform/genesis.h b/src/engine/platform/genesis.h
index 9bde5aa3..d384111b 100644
--- a/src/engine/platform/genesis.h
+++ b/src/engine/platform/genesis.h
@@ -98,7 +98,7 @@ class DivPlatformGenesis: public DivPlatformOPN {
     friend void putDispatchChip(void*,int);
     friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     void fillStream(std::vector<DivDelayedWrite>& stream, int sRate, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
diff --git a/src/engine/platform/k007232.cpp b/src/engine/platform/k007232.cpp
index e4007cfd..007ed796 100644
--- a/src/engine/platform/k007232.cpp
+++ b/src/engine/platform/k007232.cpp
@@ -54,7 +54,7 @@ inline void DivPlatformK007232::chWrite(unsigned char ch, unsigned int addr, uns
   }
 }
 
-void DivPlatformK007232::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformK007232::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     if ((--delay)<=0) {
       delay=MAX(0,delay);
@@ -76,15 +76,15 @@ void DivPlatformK007232::acquire(short* bufL, short* bufR, size_t start, size_t
       const unsigned char vol1=regPool[0x10],vol2=regPool[0x11];
       const signed int lout[2]={(k007232.output(0)*(vol1&0xf)),(k007232.output(1)*(vol2&0xf))};
       const signed int rout[2]={(k007232.output(0)*((vol1>>4)&0xf)),(k007232.output(1)*((vol2>>4)&0xf))};
-      bufL[h]=(lout[0]+lout[1])<<4;
-      bufR[h]=(rout[0]+rout[1])<<4;
+      buf[0][h]=(lout[0]+lout[1])<<4;
+      buf[1][h]=(rout[0]+rout[1])<<4;
       for (int i=0; i<2; i++) {
         oscBuf[i]->data[oscBuf[i]->needle++]=(lout[i]+rout[i])<<4;
       }
     } else {
       const unsigned char vol=regPool[0xc];
       const signed int out[2]={(k007232.output(0)*(vol&0xf)),(k007232.output(1)*((vol>>4)&0xf))};
-      bufL[h]=bufR[h]=(out[0]+out[1])<<4;
+      buf[0][h]=buf[1][h]=(out[0]+out[1])<<4;
       for (int i=0; i<2; i++) {
         oscBuf[i]->data[oscBuf[i]->needle++]=out[i]<<5;
       }
diff --git a/src/engine/platform/k007232.h b/src/engine/platform/k007232.h
index 78d0522b..8d9aeb28 100644
--- a/src/engine/platform/k007232.h
+++ b/src/engine/platform/k007232.h
@@ -80,7 +80,7 @@ class DivPlatformK007232: public DivDispatch, public k007232_intf {
   void chWrite(unsigned char ch, unsigned int addr, unsigned char val);
   public:
     u8 read_sample(u8 ne, u32 address);
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/lynx.cpp b/src/engine/platform/lynx.cpp
index 978e2600..8311739c 100644
--- a/src/engine/platform/lynx.cpp
+++ b/src/engine/platform/lynx.cpp
@@ -130,7 +130,7 @@ const char** DivPlatformLynx::getRegisterSheet() {
   return regCheatSheetLynx;
 }
 
-void DivPlatformLynx::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformLynx::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     for (int i=0; i<4; i++) {
       if (chan[i].pcm && chan[i].sample>=0 && chan[i].sample<parent->song.sampleLen) {
diff --git a/src/engine/platform/lynx.h b/src/engine/platform/lynx.h
index dfd89108..ec2208d3 100644
--- a/src/engine/platform/lynx.h
+++ b/src/engine/platform/lynx.h
@@ -68,7 +68,7 @@ class DivPlatformLynx: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/mmc5.cpp b/src/engine/platform/mmc5.cpp
index a00dd771..3e992068 100644
--- a/src/engine/platform/mmc5.cpp
+++ b/src/engine/platform/mmc5.cpp
@@ -43,7 +43,7 @@ const char** DivPlatformMMC5::getRegisterSheet() {
   return regCheatSheetMMC5;
 }
 
-void DivPlatformMMC5::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformMMC5::acquire(short** buf, size_t len) {
   for (size_t i=start; i<start+len; i++) {
     if (dacSample!=-1) {
       dacPeriod+=dacRate;
@@ -81,7 +81,7 @@ void DivPlatformMMC5::acquire(short* bufL, short* bufR, size_t start, size_t len
     }
     if (sample>32767) sample=32767;
     if (sample<-32768) sample=-32768;
-    bufL[i]=sample;
+    buf[0][i]=sample;
 
     if (++writeOscBuf>=32) {
       writeOscBuf=0;
diff --git a/src/engine/platform/mmc5.h b/src/engine/platform/mmc5.h
index a3ab9053..3e83ff06 100644
--- a/src/engine/platform/mmc5.h
+++ b/src/engine/platform/mmc5.h
@@ -50,7 +50,7 @@ class DivPlatformMMC5: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/msm5232.cpp b/src/engine/platform/msm5232.cpp
index 8a4e369c..1ed6e5a2 100644
--- a/src/engine/platform/msm5232.cpp
+++ b/src/engine/platform/msm5232.cpp
@@ -45,7 +45,7 @@ const char** DivPlatformMSM5232::getRegisterSheet() {
   return regCheatSheetMSM5232;
 }
 
-void DivPlatformMSM5232::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformMSM5232::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     while (!writes.empty()) {
       QueuedWrite w=writes.front();
@@ -75,9 +75,9 @@ void DivPlatformMSM5232::acquire(short* bufL, short* bufR, size_t start, size_t
     }
     
     //printf("tempL: %d tempR: %d\n",tempL,tempR);
-    bufL[h]=0;
+    buf[0][h]=0;
     for (int i=0; i<8; i++) {
-      bufL[h]+=(temp[i]*partVolume[i])>>8;
+      buf[0][h]+=(temp[i]*partVolume[i])>>8;
     }
   }
 }
diff --git a/src/engine/platform/msm5232.h b/src/engine/platform/msm5232.h
index e6bfb9ff..26d2a34b 100644
--- a/src/engine/platform/msm5232.h
+++ b/src/engine/platform/msm5232.h
@@ -60,7 +60,7 @@ class DivPlatformMSM5232: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/msm6258.cpp b/src/engine/platform/msm6258.cpp
index c9b6b910..4824af90 100644
--- a/src/engine/platform/msm6258.cpp
+++ b/src/engine/platform/msm6258.cpp
@@ -30,7 +30,7 @@ const char** DivPlatformMSM6258::getRegisterSheet() {
   return NULL;
 }
 
-void DivPlatformMSM6258::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformMSM6258::acquire(short** buf, size_t len) {
   short* outs[2]={
     &msmOut,
     NULL
@@ -78,12 +78,12 @@ void DivPlatformMSM6258::acquire(short* bufL, short* bufR, size_t start, size_t
     }
     
     if (isMuted[0]) {
-      bufL[h]=0;
-      bufR[h]=0;
+      buf[0][h]=0;
+      buf[1][h]=0;
       oscBuf[0]->data[oscBuf[0]->needle++]=0;
     } else {
-      bufL[h]=(msmPan&2)?msmOut:0;
-      bufR[h]=(msmPan&1)?msmOut:0;
+      buf[0][h]=(msmPan&2)?msmOut:0;
+      buf[1][h]=(msmPan&1)?msmOut:0;
       oscBuf[0]->data[oscBuf[0]->needle++]=msmPan?msmOut:0;
     }
   }
diff --git a/src/engine/platform/msm6258.h b/src/engine/platform/msm6258.h
index b981fd28..47d079ca 100644
--- a/src/engine/platform/msm6258.h
+++ b/src/engine/platform/msm6258.h
@@ -58,7 +58,7 @@ class DivPlatformMSM6258: public DivDispatch {
     friend void putDispatchChan(void*,int,int);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/msm6295.cpp b/src/engine/platform/msm6295.cpp
index 2423167f..3247d9ca 100644
--- a/src/engine/platform/msm6295.cpp
+++ b/src/engine/platform/msm6295.cpp
@@ -37,7 +37,7 @@ u8 DivPlatformMSM6295::read_byte(u32 address) {
   return adpcmMem[address&0x3ffff];
 }
 
-void DivPlatformMSM6295::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformMSM6295::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     if (delay<=0) {
       if (!writes.empty()) {
@@ -75,7 +75,7 @@ void DivPlatformMSM6295::acquire(short* bufL, short* bufR, size_t start, size_t
     msm.tick();
     msm.tick();
   
-    bufL[h]=msm.out()<<4;
+    buf[0][h]=msm.out()<<4;
 
     if (++updateOsc>=22) {
       updateOsc=0;
diff --git a/src/engine/platform/msm6295.h b/src/engine/platform/msm6295.h
index e3339df3..77a82f58 100644
--- a/src/engine/platform/msm6295.h
+++ b/src/engine/platform/msm6295.h
@@ -64,7 +64,7 @@ class DivPlatformMSM6295: public DivDispatch, public vgsound_emu_mem_intf {
   
   public:
     virtual u8 read_byte(u32 address) override;
-    virtual void acquire(short* bufL, short* bufR, size_t start, size_t len) override;
+    virtual void acquire(short** buf, size_t len) override;
     virtual int dispatch(DivCommand c) override;
     virtual void* getChanState(int chan) override;
     virtual DivMacroInt* getChanMacroInt(int ch) override;
diff --git a/src/engine/platform/n163.cpp b/src/engine/platform/n163.cpp
index c3efd5ac..49c1569a 100644
--- a/src/engine/platform/n163.cpp
+++ b/src/engine/platform/n163.cpp
@@ -108,13 +108,13 @@ const char** DivPlatformN163::getRegisterSheet() {
   return regCheatSheetN163;
 }
 
-void DivPlatformN163::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformN163::acquire(short** buf, size_t len) {
   for (size_t i=start; i<start+len; i++) {
     n163.tick();
     int out=(n163.out()<<6)*2; // scale to 16 bit
     if (out>32767) out=32767;
     if (out<-32768) out=-32768;
-    bufL[i]=bufR[i]=out;
+    buf[0][i]=buf[1][i]=out;
 
     if (n163.voice_cycle()==0x78) for (int i=0; i<8; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=n163.voice_out(i)<<7;
diff --git a/src/engine/platform/n163.h b/src/engine/platform/n163.h
index 872c622b..30eb222c 100644
--- a/src/engine/platform/n163.h
+++ b/src/engine/platform/n163.h
@@ -74,7 +74,7 @@ class DivPlatformN163: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/namcowsg.cpp b/src/engine/platform/namcowsg.cpp
index 122693d2..58270c0e 100644
--- a/src/engine/platform/namcowsg.cpp
+++ b/src/engine/platform/namcowsg.cpp
@@ -151,7 +151,7 @@ const char** DivPlatformNamcoWSG::getRegisterSheet() {
   return regCheatSheetNamcoWSG;
 }
 
-void DivPlatformNamcoWSG::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformNamcoWSG::acquire(short** buf, size_t len) {
   while (!writes.empty()) {
     QueuedWrite w=writes.front();
     switch (devType) {
diff --git a/src/engine/platform/namcowsg.h b/src/engine/platform/namcowsg.h
index 639b54c4..87a2517e 100644
--- a/src/engine/platform/namcowsg.h
+++ b/src/engine/platform/namcowsg.h
@@ -54,7 +54,7 @@ class DivPlatformNamcoWSG: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/nes.cpp b/src/engine/platform/nes.cpp
index d0cae5ec..a60eeee4 100644
--- a/src/engine/platform/nes.cpp
+++ b/src/engine/platform/nes.cpp
@@ -112,7 +112,7 @@ void DivPlatformNES::acquire_puNES(short* bufL, short* bufR, size_t start, size_
     int sample=(pulse_output(nes)+tnd_output(nes))<<6;
     if (sample>32767) sample=32767;
     if (sample<-32768) sample=-32768;
-    bufL[i]=sample;
+    buf[0][i]=sample;
     if (++writeOscBuf>=32) {
       writeOscBuf=0;
       oscBuf[0]->data[oscBuf[0]->needle++]=isMuted[0]?0:(nes->S1.output<<11);
@@ -139,7 +139,7 @@ void DivPlatformNES::acquire_NSFPlay(short* bufL, short* bufR, size_t start, siz
     int sample=(out1[0]+out1[1]+out2[0]+out2[1])<<1;
     if (sample>32767) sample=32767;
     if (sample<-32768) sample=-32768;
-    bufL[i]=sample;
+    buf[0][i]=sample;
     if (++writeOscBuf>=32) {
       writeOscBuf=0;
       oscBuf[0]->data[oscBuf[0]->needle++]=nes1_NP->out[0]<<11;
@@ -151,7 +151,7 @@ void DivPlatformNES::acquire_NSFPlay(short* bufL, short* bufR, size_t start, siz
   }
 }
 
-void DivPlatformNES::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformNES::acquire(short** buf, size_t len) {
   if (useNP) {
     acquire_NSFPlay(bufL,bufR,start,len);
   } else {
diff --git a/src/engine/platform/nes.h b/src/engine/platform/nes.h
index d9f43e91..42758f56 100644
--- a/src/engine/platform/nes.h
+++ b/src/engine/platform/nes.h
@@ -72,7 +72,7 @@ class DivPlatformNES: public DivDispatch {
   void acquire_NSFPlay(short* bufL, short* bufR, size_t start, size_t len);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/opl.cpp b/src/engine/platform/opl.cpp
index aefefcaa..4c993d54 100644
--- a/src/engine/platform/opl.cpp
+++ b/src/engine/platform/opl.cpp
@@ -255,14 +255,14 @@ void DivPlatformOPL::acquire_nuked(short* bufL, short* bufR, size_t start, size_
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
+    buf[0][h]=os[0];
     if (oplType==3 || oplType==759) {
-      bufR[h]=os[1];
+      buf[1][h]=os[1];
     }
   }
 }
 
-void DivPlatformOPL::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformOPL::acquire(short** buf, size_t len) {
   //if (useYMFM) {
   //  acquire_ymfm(bufL,bufR,start,len);
   //} else {
diff --git a/src/engine/platform/opl.h b/src/engine/platform/opl.h
index db8bc475..5a113d4d 100644
--- a/src/engine/platform/opl.h
+++ b/src/engine/platform/opl.h
@@ -108,7 +108,7 @@ class DivPlatformOPL: public DivDispatch {
     //void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/opll.cpp b/src/engine/platform/opll.cpp
index 8ffd6501..0bc99dab 100644
--- a/src/engine/platform/opll.cpp
+++ b/src/engine/platform/opll.cpp
@@ -83,14 +83,14 @@ void DivPlatformOPLL::acquire_nuked(short* bufL, short* bufR, size_t start, size
     os*=50;
     if (os<-32768) os=-32768;
     if (os>32767) os=32767;
-    bufL[h]=os;
+    buf[0][h]=os;
   }
 }
 
 void DivPlatformOPLL::acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len) {
 }
 
-void DivPlatformOPLL::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformOPLL::acquire(short** buf, size_t len) {
   acquire_nuked(bufL,bufR,start,len);
 }
 
diff --git a/src/engine/platform/opll.h b/src/engine/platform/opll.h
index a1eb7004..32970e50 100644
--- a/src/engine/platform/opll.h
+++ b/src/engine/platform/opll.h
@@ -81,7 +81,7 @@ class DivPlatformOPLL: public DivDispatch {
     void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/pce.cpp b/src/engine/platform/pce.cpp
index cc6f67f3..c83594fe 100644
--- a/src/engine/platform/pce.cpp
+++ b/src/engine/platform/pce.cpp
@@ -53,7 +53,7 @@ const char** DivPlatformPCE::getRegisterSheet() {
   return regCheatSheetPCE;
 }
 
-void DivPlatformPCE::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformPCE::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     // PCM part
     for (int i=0; i<6; i++) {
@@ -113,8 +113,8 @@ void DivPlatformPCE::acquire(short* bufL, short* bufR, size_t start, size_t len)
     if (tempR[0]>32767) tempR[0]=32767;
     
     //printf("tempL: %d tempR: %d\n",tempL,tempR);
-    bufL[h]=tempL[0];
-    bufR[h]=tempR[0];
+    buf[0][h]=tempL[0];
+    buf[1][h]=tempR[0];
   }
 }
 
diff --git a/src/engine/platform/pce.h b/src/engine/platform/pce.h
index 02aea9b3..6493840c 100644
--- a/src/engine/platform/pce.h
+++ b/src/engine/platform/pce.h
@@ -76,7 +76,7 @@ class DivPlatformPCE: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/pcmdac.cpp b/src/engine/platform/pcmdac.cpp
index 8d9bb954..32ae9c5b 100644
--- a/src/engine/platform/pcmdac.cpp
+++ b/src/engine/platform/pcmdac.cpp
@@ -26,13 +26,13 @@
 // to ease the driver, freqency register is a 8.16 counter relative to output sample rate
 #define CHIP_FREQBASE 65536
 
-void DivPlatformPCMDAC::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformPCMDAC::acquire(short** buf, size_t len) {
   const int depthScale=(15-outDepth);
   int output=0;
   for (size_t h=start; h<start+len; h++) {
     if (!chan[0].active || isMuted) {
-      bufL[h]=0;
-      bufR[h]=0;
+      buf[0][h]=0;
+      buf[1][h]=0;
       oscBuf->data[oscBuf->needle++]=0;
       continue;
     }
@@ -157,12 +157,12 @@ void DivPlatformPCMDAC::acquire(short* bufL, short* bufR, size_t start, size_t l
     output=output*chan[0].vol*chan[0].envVol/16384;
     oscBuf->data[oscBuf->needle++]=output;
     if (outStereo) {
-      bufL[h]=((output*chan[0].panL)>>(depthScale+8))<<depthScale;
-      bufR[h]=((output*chan[0].panR)>>(depthScale+8))<<depthScale;
+      buf[0][h]=((output*chan[0].panL)>>(depthScale+8))<<depthScale;
+      buf[1][h]=((output*chan[0].panR)>>(depthScale+8))<<depthScale;
     } else {
       output=(output>>depthScale)<<depthScale;
-      bufL[h]=output;
-      bufR[h]=output;
+      buf[0][h]=output;
+      buf[1][h]=output;
     }
   }
 }
diff --git a/src/engine/platform/pcmdac.h b/src/engine/platform/pcmdac.h
index 280af7a3..9224ccc7 100644
--- a/src/engine/platform/pcmdac.h
+++ b/src/engine/platform/pcmdac.h
@@ -67,7 +67,7 @@ class DivPlatformPCMDAC: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
diff --git a/src/engine/platform/pcspkr.cpp b/src/engine/platform/pcspkr.cpp
index 5100e1d9..76b4a7a7 100644
--- a/src/engine/platform/pcspkr.cpp
+++ b/src/engine/platform/pcspkr.cpp
@@ -207,10 +207,10 @@ void DivPlatformPCSpeaker::acquire_unfilt(short* bufL, short* bufR, size_t start
         }
       }
       out=(pos>(freq>>1) && !isMuted[0])?32767:0;
-      bufL[i]=out;
+      buf[0][i]=out;
       oscBuf->data[oscBuf->needle++]=out;
     } else {
-      bufL[i]=0;
+      buf[0][i]=0;
       oscBuf->data[oscBuf->needle++]=0;
     }
   }
@@ -234,10 +234,10 @@ void DivPlatformPCSpeaker::acquire_cone(short* bufL, short* bufR, size_t start,
       float out=(low+band)*0.75;
       if (out>1.0) out=1.0;
       if (out<-1.0) out=-1.0;
-      bufL[i]=out*32767;
+      buf[0][i]=out*32767;
       oscBuf->data[oscBuf->needle++]=out*32767;
     } else {
-      bufL[i]=0;
+      buf[0][i]=0;
       oscBuf->data[oscBuf->needle++]=0;
     }
   }
@@ -261,10 +261,10 @@ void DivPlatformPCSpeaker::acquire_piezo(short* bufL, short* bufR, size_t start,
       float out=band*0.15-(next-low)*0.06;
       if (out>1.0) out=1.0;
       if (out<-1.0) out=-1.0;
-      bufL[i]=out*32767;
+      buf[0][i]=out*32767;
       oscBuf->data[oscBuf->needle++]=out*32767;
     } else {
-      bufL[i]=0;
+      buf[0][i]=0;
       oscBuf->data[oscBuf->needle++]=0;
     }
   }
@@ -317,11 +317,11 @@ void DivPlatformPCSpeaker::acquire_real(short* bufL, short* bufR, size_t start,
     } else {
       oscBuf->data[oscBuf->needle++]=0;
     }
-    bufL[i]=0;
+    buf[0][i]=0;
   }
 }
 
-void DivPlatformPCSpeaker::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformPCSpeaker::acquire(short** buf, size_t len) {
   switch (speakerType) {
     case 0:
       acquire_unfilt(bufL,bufR,start,len);
diff --git a/src/engine/platform/pcspkr.h b/src/engine/platform/pcspkr.h
index b3028d78..953a93b8 100644
--- a/src/engine/platform/pcspkr.h
+++ b/src/engine/platform/pcspkr.h
@@ -68,7 +68,7 @@ class DivPlatformPCSpeaker: public DivDispatch {
 
   public:
     void pcSpeakerThread();
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/pet.cpp b/src/engine/platform/pet.cpp
index 1e98257e..7474558e 100644
--- a/src/engine/platform/pet.cpp
+++ b/src/engine/platform/pet.cpp
@@ -55,7 +55,7 @@ void DivPlatformPET::rWrite(unsigned int addr, unsigned char val) {
   regPool[addr]=val;
 }
 
-void DivPlatformPET::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformPET::acquire(short** buf, size_t len) {
   bool hwSROutput=((regPool[11]>>2)&7)==4;
   if (chan[0].enable) {
     int reload=regPool[8]*2+4;
@@ -70,8 +70,8 @@ void DivPlatformPET::acquire(short* bufL, short* bufR, size_t start, size_t len)
       } else {
         chan[0].cnt-=SAMP_DIVIDER;
       }
-      bufL[h]=chan[0].out;
-      bufR[h]=chan[0].out;
+      buf[0][h]=chan[0].out;
+      buf[1][h]=chan[0].out;
       oscBuf->data[oscBuf->needle++]=chan[0].out;
     }
     // emulate driver writes to PCR
@@ -79,8 +79,8 @@ void DivPlatformPET::acquire(short* bufL, short* bufR, size_t start, size_t len)
   } else {
     chan[0].out=0;
     for (size_t h=start; h<start+len; h++) {
-      bufL[h]=0;
-      bufR[h]=0;
+      buf[0][h]=0;
+      buf[1][h]=0;
       oscBuf->data[oscBuf->needle++]=0;
     }
   }
diff --git a/src/engine/platform/pet.h b/src/engine/platform/pet.h
index 69bf9dde..5942817c 100644
--- a/src/engine/platform/pet.h
+++ b/src/engine/platform/pet.h
@@ -45,7 +45,7 @@ class DivPlatformPET: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/pokemini.cpp b/src/engine/platform/pokemini.cpp
index 7625f1ed..1099e63f 100644
--- a/src/engine/platform/pokemini.cpp
+++ b/src/engine/platform/pokemini.cpp
@@ -86,7 +86,7 @@ void DivPlatformPokeMini::rWrite(unsigned char addr, unsigned char val) {
   }
 }
 
-void DivPlatformPokeMini::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformPokeMini::acquire(short** buf, size_t len) {
   int out=0;
   for (size_t i=start; i<start+len; i++) {
     for (int j=0; j<PCSPKR_DIVIDER; j++) {
@@ -102,10 +102,10 @@ void DivPlatformPokeMini::acquire(short* bufL, short* bufR, size_t start, size_t
     }
     if (on) {
       out=(pos>=pivot && !isMuted[0])?volTable[vol&3]:0;
-      bufL[i]=out;
+      buf[0][i]=out;
       oscBuf->data[oscBuf->needle++]=out;
     } else {
-      bufL[i]=0;
+      buf[0][i]=0;
       oscBuf->data[oscBuf->needle++]=0;
     }
   }
diff --git a/src/engine/platform/pokemini.h b/src/engine/platform/pokemini.h
index 7fc17ddf..80233eb4 100644
--- a/src/engine/platform/pokemini.h
+++ b/src/engine/platform/pokemini.h
@@ -46,7 +46,7 @@ class DivPlatformPokeMini: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/pokey.cpp b/src/engine/platform/pokey.cpp
index a79ec453..f740c1af 100644
--- a/src/engine/platform/pokey.cpp
+++ b/src/engine/platform/pokey.cpp
@@ -64,7 +64,7 @@ const char** DivPlatformPOKEY::getRegisterSheet() {
   return regCheatSheetPOKEY;
 }
 
-void DivPlatformPOKEY::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformPOKEY::acquire(short** buf, size_t len) {
   if (useAltASAP) {
     acquireASAP(bufL, start, len);
   } else {
diff --git a/src/engine/platform/pokey.h b/src/engine/platform/pokey.h
index e68178a2..2418ade2 100644
--- a/src/engine/platform/pokey.h
+++ b/src/engine/platform/pokey.h
@@ -58,7 +58,7 @@ class DivPlatformPOKEY: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     void acquireMZ(short* buf, size_t start, size_t len);
     void acquireASAP(short* buf, size_t start, size_t len);
     int dispatch(DivCommand c);
diff --git a/src/engine/platform/pong.cpp b/src/engine/platform/pong.cpp
index 0c97391c..fe34b398 100644
--- a/src/engine/platform/pong.cpp
+++ b/src/engine/platform/pong.cpp
@@ -23,7 +23,7 @@
 
 #define CHIP_DIVIDER 1024
 
-void DivPlatformPong::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformPong::acquire(short** buf, size_t len) {
   int out=0;
   for (size_t i=start; i<start+len; i++) {
     if (on) {
@@ -32,10 +32,10 @@ void DivPlatformPong::acquire(short* bufL, short* bufR, size_t start, size_t len
         flip=!flip;
       }
       out=(flip && !isMuted[0])?32767:0;
-      bufL[i]=out;
+      buf[0][i]=out;
       oscBuf->data[oscBuf->needle++]=out;
     } else {
-      bufL[i]=0;
+      buf[0][i]=0;
       oscBuf->data[oscBuf->needle++]=0;
       flip=false;
     }
diff --git a/src/engine/platform/pong.h b/src/engine/platform/pong.h
index 835809f5..8259b14c 100644
--- a/src/engine/platform/pong.h
+++ b/src/engine/platform/pong.h
@@ -39,7 +39,7 @@ class DivPlatformPong: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/qsound.cpp b/src/engine/platform/qsound.cpp
index a307912a..3c9f3689 100644
--- a/src/engine/platform/qsound.cpp
+++ b/src/engine/platform/qsound.cpp
@@ -265,11 +265,11 @@ const char** DivPlatformQSound::getRegisterSheet() {
   return regCheatSheetQSound;
 }
 
-void DivPlatformQSound::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformQSound::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     qsound_update(&chip);
-    bufL[h]=chip.out[0];
-    bufR[h]=chip.out[1];
+    buf[0][h]=chip.out[0];
+    buf[1][h]=chip.out[1];
 
     for (int i=0; i<19; i++) {
       int data=chip.voice_output[i]<<2;
diff --git a/src/engine/platform/qsound.h b/src/engine/platform/qsound.h
index f4db4341..f0b0ed03 100644
--- a/src/engine/platform/qsound.h
+++ b/src/engine/platform/qsound.h
@@ -62,7 +62,7 @@ class DivPlatformQSound: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/rf5c68.cpp b/src/engine/platform/rf5c68.cpp
index da352925..b53815b7 100644
--- a/src/engine/platform/rf5c68.cpp
+++ b/src/engine/platform/rf5c68.cpp
@@ -54,7 +54,7 @@ void DivPlatformRF5C68::chWrite(unsigned char ch, unsigned int addr, unsigned ch
   }
 }
 
-void DivPlatformRF5C68::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformRF5C68::acquire(short** buf, size_t len) {
   short buf[16][256];
   short* chBufPtrs[16]={
     buf[0],buf[1],buf[2],buf[3],buf[4],buf[5],buf[6],buf[7],
@@ -68,7 +68,7 @@ void DivPlatformRF5C68::acquire(short* bufL, short* bufR, size_t start, size_t l
 
   while (len > 0) {
     size_t blockLen=MIN(len,256);
-    short* bufPtrs[2]={&bufL[pos],&bufR[pos]};
+    short* bufPtrs[2]={&buf[0][pos],&buf[1][pos]};
     rf5c68.sound_stream_update(bufPtrs,chBufPtrs,blockLen);
     for (int i=0; i<8; i++) {
       for (size_t j=0; j<blockLen; j++) {
diff --git a/src/engine/platform/rf5c68.h b/src/engine/platform/rf5c68.h
index f1a19cdf..98fc1a75 100644
--- a/src/engine/platform/rf5c68.h
+++ b/src/engine/platform/rf5c68.h
@@ -56,7 +56,7 @@ class DivPlatformRF5C68: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/saa.cpp b/src/engine/platform/saa.cpp
index 4823055c..0208a3eb 100644
--- a/src/engine/platform/saa.cpp
+++ b/src/engine/platform/saa.cpp
@@ -73,18 +73,18 @@ void DivPlatformSAA1099::acquire_saaSound(short* bufL, short* bufR, size_t start
   saa_saaSound->GenerateMany((unsigned char*)saaBuf[0],len,oscBuf);
 #ifdef TA_BIG_ENDIAN
   for (size_t i=0; i<len; i++) {
-    bufL[i+start]=(short)((((unsigned short)saaBuf[0][1+(i<<1)])<<8)|(((unsigned short)saaBuf[0][1+(i<<1)])>>8));
-    bufR[i+start]=(short)((((unsigned short)saaBuf[0][i<<1])<<8)|(((unsigned short)saaBuf[0][i<<1])>>8));
+    buf[0][i+start]=(short)((((unsigned short)saaBuf[0][1+(i<<1)])<<8)|(((unsigned short)saaBuf[0][1+(i<<1)])>>8));
+    buf[1][i+start]=(short)((((unsigned short)saaBuf[0][i<<1])<<8)|(((unsigned short)saaBuf[0][i<<1])>>8));
   }
 #else
   for (size_t i=0; i<len; i++) {
-    bufL[i+start]=saaBuf[0][i<<1];
-    bufR[i+start]=saaBuf[0][1+(i<<1)];
+    buf[0][i+start]=saaBuf[0][i<<1];
+    buf[1][i+start]=saaBuf[0][1+(i<<1)];
   }
 #endif
 }
 
-void DivPlatformSAA1099::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformSAA1099::acquire(short** buf, size_t len) {
   acquire_saaSound(bufL,bufR,start,len);
 }
 
diff --git a/src/engine/platform/saa.h b/src/engine/platform/saa.h
index af2f18c1..23cb4bbf 100644
--- a/src/engine/platform/saa.h
+++ b/src/engine/platform/saa.h
@@ -74,7 +74,7 @@ class DivPlatformSAA1099: public DivDispatch {
     void acquire_saaSound(short* bufL, short* bufR, size_t start, size_t len);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/scc.cpp b/src/engine/platform/scc.cpp
index ba446e23..a8f3712f 100644
--- a/src/engine/platform/scc.cpp
+++ b/src/engine/platform/scc.cpp
@@ -80,13 +80,13 @@ const char** DivPlatformSCC::getRegisterSheet() {
   return isPlus ? regCheatSheetSCCPlus : regCheatSheetSCC;
 }
 
-void DivPlatformSCC::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformSCC::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     for (int i=0; i<16; i++) {
       scc->tick();
     }
     short out=(short)scc->out()<<5;
-    bufL[h]=bufR[h]=out;
+    buf[0][h]=buf[1][h]=out;
 
     for (int i=0; i<5; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=scc->voice_out(i)<<7;
diff --git a/src/engine/platform/scc.h b/src/engine/platform/scc.h
index 55d82ca8..1c736472 100644
--- a/src/engine/platform/scc.h
+++ b/src/engine/platform/scc.h
@@ -50,7 +50,7 @@ class DivPlatformSCC: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/segapcm.cpp b/src/engine/platform/segapcm.cpp
index edc05d47..dd212c3f 100644
--- a/src/engine/platform/segapcm.cpp
+++ b/src/engine/platform/segapcm.cpp
@@ -26,7 +26,7 @@
 //#define rWrite(a,v) if (!skipRegisterWrites) {pendingWrites[a]=v;}
 //#define immWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); if (dumpWrites) {addWrite(a,v);} }
 
-void DivPlatformSegaPCM::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformSegaPCM::acquire(short** buf, size_t len) {
   static int os[2];
 
   for (size_t h=start; h<start+len; h++) {
@@ -67,8 +67,8 @@ void DivPlatformSegaPCM::acquire(short* bufL, short* bufR, size_t start, size_t
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
   }
 }
 
diff --git a/src/engine/platform/segapcm.h b/src/engine/platform/segapcm.h
index 8e02d4a8..3164e1b9 100644
--- a/src/engine/platform/segapcm.h
+++ b/src/engine/platform/segapcm.h
@@ -77,7 +77,7 @@ class DivPlatformSegaPCM: public DivDispatch {
     friend void putDispatchChan(void*,int,int);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/sms.cpp b/src/engine/platform/sms.cpp
index e4a0bedc..2a25dd8c 100644
--- a/src/engine/platform/sms.cpp
+++ b/src/engine/platform/sms.cpp
@@ -73,8 +73,8 @@ void DivPlatformSMS::acquire_nuked(short* bufL, short* bufR, size_t start, size_
     if (oL>32767) oL=32767;
     if (oR<-32768) oR=-32768;
     if (oR>32767) oR=32767;
-    bufL[h]=oL;
-    bufR[h]=oR;
+    buf[0][h]=oL;
+    buf[1][h]=oR;
     for (int i=0; i<4; i++) {
       if (isMuted[i]) {
         oscBuf[i]->data[oscBuf[i]->needle++]=0;
@@ -97,8 +97,8 @@ void DivPlatformSMS::acquire_mame(short* bufL, short* bufR, size_t start, size_t
   }
   for (size_t h=start; h<start+len; h++) {
     short* outs[2]={
-      &bufL[h],
-      &bufR[h]
+      &buf[0][h],
+      &buf[1][h]
     };
     sn->sound_stream_update(outs,1);
     for (int i=0; i<4; i++) {
@@ -111,7 +111,7 @@ void DivPlatformSMS::acquire_mame(short* bufL, short* bufR, size_t start, size_t
   }
 }
 
-void DivPlatformSMS::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformSMS::acquire(short** buf, size_t len) {
   if (nuked) {
     acquire_nuked(bufL,bufR,start,len);
   } else {
diff --git a/src/engine/platform/sms.h b/src/engine/platform/sms.h
index 90000308..7358ce91 100644
--- a/src/engine/platform/sms.h
+++ b/src/engine/platform/sms.h
@@ -69,7 +69,7 @@ class DivPlatformSMS: public DivDispatch {
   void acquire_nuked(short* bufL, short* bufR, size_t start, size_t len);
   void acquire_mame(short* bufL, short* bufR, size_t start, size_t len);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/snes.cpp b/src/engine/platform/snes.cpp
index fec8139e..38512d13 100644
--- a/src/engine/platform/snes.cpp
+++ b/src/engine/platform/snes.cpp
@@ -65,7 +65,7 @@ const char** DivPlatformSNES::getRegisterSheet() {
   return regCheatSheetSNESDSP;
 }
 
-void DivPlatformSNES::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformSNES::acquire(short** buf, size_t len) {
   short out[2];
   short chOut[16];
   for (size_t h=start; h<start+len; h++) {
@@ -82,8 +82,8 @@ void DivPlatformSNES::acquire(short* bufL, short* bufR, size_t start, size_t len
     dsp.set_output(out,1);
     dsp.run(32);
     dsp.get_voice_outputs(chOut);
-    bufL[h]=out[0];
-    bufR[h]=out[1];
+    buf[0][h]=out[0];
+    buf[1][h]=out[1];
     for (int i=0; i<8; i++) {
       int next=(3*(chOut[i*2]+chOut[i*2+1]))>>2;
       if (next<-32768) next=-32768;
diff --git a/src/engine/platform/snes.h b/src/engine/platform/snes.h
index 094fe03a..884c7d80 100644
--- a/src/engine/platform/snes.h
+++ b/src/engine/platform/snes.h
@@ -93,7 +93,7 @@ class DivPlatformSNES: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/su.cpp b/src/engine/platform/su.cpp
index 52fcafb0..53937aaf 100644
--- a/src/engine/platform/su.cpp
+++ b/src/engine/platform/su.cpp
@@ -40,14 +40,14 @@ double DivPlatformSoundUnit::NOTE_SU(int ch, int note) {
   return NOTE_FREQUENCY(note);
 }
 
-void DivPlatformSoundUnit::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformSoundUnit::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     while (!writes.empty()) {
       QueuedWrite w=writes.front();
       su->Write(w.addr,w.val);
       writes.pop();
     }
-    su->NextSample(&bufL[h],&bufR[h]);
+    su->NextSample(&buf[0][h],&buf[1][h]);
     for (int i=0; i<8; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=su->GetSample(i);
     }
diff --git a/src/engine/platform/su.h b/src/engine/platform/su.h
index d6ca5aee..518edafa 100644
--- a/src/engine/platform/su.h
+++ b/src/engine/platform/su.h
@@ -98,7 +98,7 @@ class DivPlatformSoundUnit: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/swan.cpp b/src/engine/platform/swan.cpp
index 92dbe940..b5d860ae 100644
--- a/src/engine/platform/swan.cpp
+++ b/src/engine/platform/swan.cpp
@@ -50,7 +50,7 @@ const char** DivPlatformSwan::getRegisterSheet() {
   return regCheatSheetWS;
 }
 
-void DivPlatformSwan::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformSwan::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     // PCM part
     if (pcm && dacSample!=-1) {
@@ -83,8 +83,8 @@ void DivPlatformSwan::acquire(short* bufL, short* bufR, size_t start, size_t len
     int16_t samp[2]{0, 0};
     ws->SoundUpdate(16);
     ws->SoundFlush(samp, 1);
-    bufL[h]=samp[0];
-    bufR[h]=samp[1];
+    buf[0][h]=samp[0];
+    buf[1][h]=samp[1];
     for (int i=0; i<4; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=(ws->sample_cache[i][0]+ws->sample_cache[i][1])<<6;
     }
diff --git a/src/engine/platform/swan.h b/src/engine/platform/swan.h
index 167a1180..6f129e6d 100644
--- a/src/engine/platform/swan.h
+++ b/src/engine/platform/swan.h
@@ -56,7 +56,7 @@ class DivPlatformSwan: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/t6w28.cpp b/src/engine/platform/t6w28.cpp
index 5830b428..34cdb126 100644
--- a/src/engine/platform/t6w28.cpp
+++ b/src/engine/platform/t6w28.cpp
@@ -35,7 +35,7 @@ const char** DivPlatformT6W28::getRegisterSheet() {
   return regCheatSheetT6W28;
 }
 
-void DivPlatformT6W28::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformT6W28::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     cycles=0;
     while (!writes.empty() && cycles<16) {
@@ -64,8 +64,8 @@ void DivPlatformT6W28::acquire(short* bufL, short* bufR, size_t start, size_t le
     if (tempR<-32768) tempR=-32768;
     if (tempR>32767) tempR=32767;
     
-    bufL[h]=tempL;
-    bufR[h]=tempR;
+    buf[0][h]=tempL;
+    buf[1][h]=tempR;
   }
 }
 
diff --git a/src/engine/platform/t6w28.h b/src/engine/platform/t6w28.h
index e3aa2fcf..dd49d1b8 100644
--- a/src/engine/platform/t6w28.h
+++ b/src/engine/platform/t6w28.h
@@ -59,7 +59,7 @@ class DivPlatformT6W28: public DivDispatch {
   
   void writeOutVol(int ch);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/tia.cpp b/src/engine/platform/tia.cpp
index 5f0467a5..a2472b21 100644
--- a/src/engine/platform/tia.cpp
+++ b/src/engine/platform/tia.cpp
@@ -38,16 +38,16 @@ const char** DivPlatformTIA::getRegisterSheet() {
   return regCheatSheetTIA;
 }
 
-void DivPlatformTIA::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformTIA::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     tia.tick();
     if (mixingType==2) {
-      bufL[h]=tia.myCurrentSample[0];
-      bufR[h]=tia.myCurrentSample[1];
+      buf[0][h]=tia.myCurrentSample[0];
+      buf[1][h]=tia.myCurrentSample[1];
     } else if (mixingType==1) {
-      bufL[h]=(tia.myCurrentSample[0]+tia.myCurrentSample[1])>>1;
+      buf[0][h]=(tia.myCurrentSample[0]+tia.myCurrentSample[1])>>1;
     } else {
-      bufL[h]=tia.myCurrentSample[0];
+      buf[0][h]=tia.myCurrentSample[0];
     }
     if (++chanOscCounter>=114) {
       chanOscCounter=0;
diff --git a/src/engine/platform/tia.h b/src/engine/platform/tia.h
index 3317955b..b4b867dc 100644
--- a/src/engine/platform/tia.h
+++ b/src/engine/platform/tia.h
@@ -45,7 +45,7 @@ class DivPlatformTIA: public DivDispatch {
     unsigned char dealWithFreq(unsigned char shape, int base, int pitch);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/tx81z.cpp b/src/engine/platform/tx81z.cpp
index e76f4337..5e762910 100644
--- a/src/engine/platform/tx81z.cpp
+++ b/src/engine/platform/tx81z.cpp
@@ -55,7 +55,7 @@ const char** DivPlatformTX81Z::getRegisterSheet() {
   return regCheatSheetOPZ;
 }
 
-void DivPlatformTX81Z::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformTX81Z::acquire(short** buf, size_t len) {
   static int os[2];
 
   ymfm::ym2414::fm_engine* fme=fm_ymfm->debug_engine();
@@ -87,8 +87,8 @@ void DivPlatformTX81Z::acquire(short* bufL, short* bufR, size_t start, size_t le
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
   }
 }
 
diff --git a/src/engine/platform/tx81z.h b/src/engine/platform/tx81z.h
index 3107f805..4dea61e7 100644
--- a/src/engine/platform/tx81z.h
+++ b/src/engine/platform/tx81z.h
@@ -60,7 +60,7 @@ class DivPlatformTX81Z: public DivPlatformOPM {
 
     friend void putDispatchChip(void*,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/vb.cpp b/src/engine/platform/vb.cpp
index c1257144..ea798073 100644
--- a/src/engine/platform/vb.cpp
+++ b/src/engine/platform/vb.cpp
@@ -93,7 +93,7 @@ const char** DivPlatformVB::getRegisterSheet() {
   return regCheatSheetVB;
 }
 
-void DivPlatformVB::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformVB::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     cycles=0;
     while (!writes.empty()) {
@@ -117,8 +117,8 @@ void DivPlatformVB::acquire(short* bufL, short* bufR, size_t start, size_t len)
     if (tempR<-32768) tempR=-32768;
     if (tempR>32767) tempR=32767;
     
-    bufL[h]=tempL;
-    bufR[h]=tempR;
+    buf[0][h]=tempL;
+    buf[1][h]=tempR;
   }
 }
 
diff --git a/src/engine/platform/vb.h b/src/engine/platform/vb.h
index b09e33af..7475c745 100644
--- a/src/engine/platform/vb.h
+++ b/src/engine/platform/vb.h
@@ -64,7 +64,7 @@ class DivPlatformVB: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/vera.cpp b/src/engine/platform/vera.cpp
index c5de2721..82b7705a 100644
--- a/src/engine/platform/vera.cpp
+++ b/src/engine/platform/vera.cpp
@@ -53,7 +53,7 @@ const char** DivPlatformVERA::getRegisterSheet() {
   return regCheatSheetVERA;
 }
 
-void DivPlatformVERA::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformVERA::acquire(short** buf, size_t len) {
   // both PSG part and PCM part output a full 16-bit range, putting bufL/R
   // argument right into both could cause an overflow
   short buf[4][128];
@@ -102,8 +102,8 @@ void DivPlatformVERA::acquire(short* bufL, short* bufR, size_t start, size_t len
     pcm_render(pcm,buf[2],buf[3],curLen);
     for (int i=0; i<curLen; i++) {
       psg_render(psg,&buf[0][i],&buf[1][i],1);
-      bufL[pos]=(short)(((int)buf[0][i]+buf[2][i])/2);
-      bufR[pos]=(short)(((int)buf[1][i]+buf[3][i])/2);
+      buf[0][pos]=(short)(((int)buf[0][i]+buf[2][i])/2);
+      buf[1][pos]=(short)(((int)buf[1][i]+buf[3][i])/2);
       pos++;
 
       for (int i=0; i<16; i++) {
diff --git a/src/engine/platform/vera.h b/src/engine/platform/vera.h
index f3467858..762a32c8 100644
--- a/src/engine/platform/vera.h
+++ b/src/engine/platform/vera.h
@@ -60,7 +60,7 @@ class DivPlatformVERA: public DivDispatch {
     friend void putDispatchChan(void*,int,int);
   
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/vic20.cpp b/src/engine/platform/vic20.cpp
index be33140b..d45bf99f 100644
--- a/src/engine/platform/vic20.cpp
+++ b/src/engine/platform/vic20.cpp
@@ -39,7 +39,7 @@ const char** DivPlatformVIC20::getRegisterSheet() {
   return regCheatSheetVIC;
 }
 
-void DivPlatformVIC20::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformVIC20::acquire(short** buf, size_t len) {
   const unsigned char loadFreq[3] = {0x7e, 0x7d, 0x7b};
   const unsigned char wavePatterns[16] = {
     0b0,     0b10,    0b100,   0b110,   0b1000,  0b1010,   0b1011,   0b1110,
@@ -66,8 +66,8 @@ void DivPlatformVIC20::acquire(short* bufL, short* bufR, size_t start, size_t le
     }
     short samp;
     vic_sound_machine_calculate_samples(vic,&samp,1,1,0,SAMP_DIVIDER);
-    bufL[h]=samp;
-    bufR[h]=samp;
+    buf[0][h]=samp;
+    buf[1][h]=samp;
     for (int i=0; i<4; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=vic->ch[i].out?(vic->volume<<11):0;
     }
diff --git a/src/engine/platform/vic20.h b/src/engine/platform/vic20.h
index fd650b55..3fc9fade 100644
--- a/src/engine/platform/vic20.h
+++ b/src/engine/platform/vic20.h
@@ -43,7 +43,7 @@ class DivPlatformVIC20: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/vrc6.cpp b/src/engine/platform/vrc6.cpp
index bb1a7a42..fa5cd0d3 100644
--- a/src/engine/platform/vrc6.cpp
+++ b/src/engine/platform/vrc6.cpp
@@ -46,7 +46,7 @@ const char** DivPlatformVRC6::getRegisterSheet() {
   return regCheatSheetVRC6;
 }
 
-void DivPlatformVRC6::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformVRC6::acquire(short** buf, size_t len) {
   for (size_t i=start; i<start+len; i++) {
     // PCM part
     for (int i=0; i<2; i++) {
@@ -81,7 +81,7 @@ void DivPlatformVRC6::acquire(short* bufL, short* bufR, size_t start, size_t len
     int sample=vrc6.out()<<9; // scale to 16 bit
     if (sample>32767) sample=32767;
     if (sample<-32768) sample=-32768;
-    bufL[i]=bufR[i]=sample;
+    buf[0][i]=buf[1][i]=sample;
 
     // Oscilloscope buffer part
     if (++writeOscBuf>=32) {
diff --git a/src/engine/platform/vrc6.h b/src/engine/platform/vrc6.h
index 3cb02c41..5facd13a 100644
--- a/src/engine/platform/vrc6.h
+++ b/src/engine/platform/vrc6.h
@@ -61,7 +61,7 @@ class DivPlatformVRC6: public DivDispatch, public vrcvi_intf {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/x1_010.cpp b/src/engine/platform/x1_010.cpp
index 0a751097..27e55e59 100644
--- a/src/engine/platform/x1_010.cpp
+++ b/src/engine/platform/x1_010.cpp
@@ -205,7 +205,7 @@ const char** DivPlatformX1_010::getRegisterSheet() {
   return regCheatSheetX1_010;
 }
 
-void DivPlatformX1_010::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformX1_010::acquire(short** buf, size_t len) {
   for (size_t h=start; h<start+len; h++) {
     x1_010.tick();
 
@@ -218,8 +218,8 @@ void DivPlatformX1_010::acquire(short* bufL, short* bufR, size_t start, size_t l
     if (tempR>32767) tempR=32767;
 
     //printf("tempL: %d tempR: %d\n",tempL,tempR);
-    bufL[h]=stereo?tempL:((tempL+tempR)>>1);
-    bufR[h]=stereo?tempR:bufL[h];
+    buf[0][h]=stereo?tempL:((tempL+tempR)>>1);
+    buf[1][h]=stereo?tempR:buf[0][h];
 
     for (int i=0; i<16; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=(x1_010.voice_out(i,0)+x1_010.voice_out(i,1))>>1;
diff --git a/src/engine/platform/x1_010.h b/src/engine/platform/x1_010.h
index 5c106eed..eaa4258a 100644
--- a/src/engine/platform/x1_010.h
+++ b/src/engine/platform/x1_010.h
@@ -127,7 +127,7 @@ class DivPlatformX1_010: public DivDispatch, public vgsound_emu_mem_intf {
   friend void putDispatchChan(void*,int,int);
   public:
     u8 read_byte(u32 address);
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/ym2203.cpp b/src/engine/platform/ym2203.cpp
index 453fa905..66e3d098 100644
--- a/src/engine/platform/ym2203.cpp
+++ b/src/engine/platform/ym2203.cpp
@@ -156,7 +156,7 @@ const char** DivPlatformYM2203::getRegisterSheet() {
   return regCheatSheetYM2203;
 }
 
-void DivPlatformYM2203::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformYM2203::acquire(short** buf, size_t len) {
   if (useCombo) {
     acquire_combo(bufL,bufR,start,len);
   } else {
@@ -218,7 +218,7 @@ void DivPlatformYM2203::acquire_combo(short* bufL, short* bufR, size_t start, si
     if (os<-32768) os=-32768;
     if (os>32767) os=32767;
   
-    bufL[h]=os;
+    buf[0][h]=os;
     
     for (int i=0; i<3; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=fm_nuked.ch_out[i];
@@ -259,7 +259,7 @@ void DivPlatformYM2203::acquire_ymfm(short* bufL, short* bufR, size_t start, siz
     if (os<-32768) os=-32768;
     if (os>32767) os=32767;
   
-    bufL[h]=os;
+    buf[0][h]=os;
 
     
     for (int i=0; i<3; i++) {
diff --git a/src/engine/platform/ym2203.h b/src/engine/platform/ym2203.h
index 2076aa25..f7163ab6 100644
--- a/src/engine/platform/ym2203.h
+++ b/src/engine/platform/ym2203.h
@@ -59,7 +59,7 @@ class DivPlatformYM2203: public DivPlatformOPN {
     void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/ym2608.cpp b/src/engine/platform/ym2608.cpp
index fd73fd2c..b706426d 100644
--- a/src/engine/platform/ym2608.cpp
+++ b/src/engine/platform/ym2608.cpp
@@ -297,7 +297,7 @@ double DivPlatformYM2608::NOTE_ADPCMB(int note) {
   return 0;
 }
 
-void DivPlatformYM2608::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformYM2608::acquire(short** buf, size_t len) {
   if (useCombo) {
     acquire_combo(bufL,bufR,start,len);
   } else {
@@ -386,8 +386,8 @@ void DivPlatformYM2608::acquire_combo(short* bufL, short* bufR, size_t start, si
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
 
     
     for (int i=0; i<psgChanOffs; i++) {
@@ -447,8 +447,8 @@ void DivPlatformYM2608::acquire_ymfm(short* bufL, short* bufR, size_t start, siz
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
 
     for (int i=0; i<6; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=(fmChan[i]->debug_output(0)+fmChan[i]->debug_output(1));
diff --git a/src/engine/platform/ym2608.h b/src/engine/platform/ym2608.h
index 9dfa2e8d..d4b3b9ba 100644
--- a/src/engine/platform/ym2608.h
+++ b/src/engine/platform/ym2608.h
@@ -74,7 +74,7 @@ class DivPlatformYM2608: public DivPlatformOPN {
     void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/ym2610.cpp b/src/engine/platform/ym2610.cpp
index b6f23154..1f8d88c7 100644
--- a/src/engine/platform/ym2610.cpp
+++ b/src/engine/platform/ym2610.cpp
@@ -232,7 +232,7 @@ const char** DivPlatformYM2610::getRegisterSheet() {
   return regCheatSheetYM2610;
 }
 
-void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformYM2610::acquire(short** buf, size_t len) {
   if (useCombo) {
     acquire_combo(bufL,bufR,start,len);
   } else {
@@ -317,8 +317,8 @@ void DivPlatformYM2610::acquire_combo(short* bufL, short* bufR, size_t start, si
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
 
     
     for (int i=0; i<psgChanOffs; i++) {
@@ -380,8 +380,8 @@ void DivPlatformYM2610::acquire_ymfm(short* bufL, short* bufR, size_t start, siz
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
 
     for (int i=0; i<psgChanOffs; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=(fmChan[i]->debug_output(0)+fmChan[i]->debug_output(1));
diff --git a/src/engine/platform/ym2610.h b/src/engine/platform/ym2610.h
index 82cce7b5..40d013e1 100644
--- a/src/engine/platform/ym2610.h
+++ b/src/engine/platform/ym2610.h
@@ -42,7 +42,7 @@ class DivPlatformYM2610: public DivPlatformYM2610Base {
     void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
     
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/ym2610b.cpp b/src/engine/platform/ym2610b.cpp
index f78d62d7..82ebd38f 100644
--- a/src/engine/platform/ym2610b.cpp
+++ b/src/engine/platform/ym2610b.cpp
@@ -296,7 +296,7 @@ const char** DivPlatformYM2610B::getRegisterSheet() {
   return regCheatSheetYM2610B;
 }
 
-void DivPlatformYM2610B::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformYM2610B::acquire(short** buf, size_t len) {
   if (useCombo) {
     acquire_combo(bufL,bufR,start,len);
   } else {
@@ -385,8 +385,8 @@ void DivPlatformYM2610B::acquire_combo(short* bufL, short* bufR, size_t start, s
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
 
     
     for (int i=0; i<psgChanOffs; i++) {
@@ -446,8 +446,8 @@ void DivPlatformYM2610B::acquire_ymfm(short* bufL, short* bufR, size_t start, si
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
-    bufL[h]=os[0];
-    bufR[h]=os[1];
+    buf[0][h]=os[0];
+    buf[1][h]=os[1];
 
     
     for (int i=0; i<psgChanOffs; i++) {
diff --git a/src/engine/platform/ym2610b.h b/src/engine/platform/ym2610b.h
index 3c1817a4..c47967fd 100644
--- a/src/engine/platform/ym2610b.h
+++ b/src/engine/platform/ym2610b.h
@@ -38,7 +38,7 @@ class DivPlatformYM2610B: public DivPlatformYM2610Base {
     void acquire_ymfm(short* bufL, short* bufR, size_t start, size_t len);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/ymz280b.cpp b/src/engine/platform/ymz280b.cpp
index fdab2cd6..1ca327f5 100644
--- a/src/engine/platform/ymz280b.cpp
+++ b/src/engine/platform/ymz280b.cpp
@@ -60,7 +60,7 @@ const char** DivPlatformYMZ280B::getRegisterSheet() {
   return regCheatSheetYMZ280B;
 }
 
-void DivPlatformYMZ280B::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformYMZ280B::acquire(short** buf, size_t len) {
   short buf[16][256];
   short *bufPtrs[16]={
     buf[0],buf[1],buf[2],buf[3],buf[4],buf[5],buf[6],buf[7],
@@ -78,8 +78,8 @@ void DivPlatformYMZ280B::acquire(short* bufL, short* bufR, size_t start, size_t
         dataR+=buf[j*2+1][i];
         oscBuf[j]->data[oscBuf[j]->needle++]=(short)(((int)buf[j*2][i]+buf[j*2+1][i])/2);
       }
-      bufL[pos]=(short)(dataL/8);
-      bufR[pos]=(short)(dataR/8);
+      buf[0][pos]=(short)(dataL/8);
+      buf[1][pos]=(short)(dataR/8);
       pos++;
     }
     len-=blockLen;
diff --git a/src/engine/platform/ymz280b.h b/src/engine/platform/ymz280b.h
index 37e06cf3..78ea544b 100644
--- a/src/engine/platform/ymz280b.h
+++ b/src/engine/platform/ymz280b.h
@@ -56,7 +56,7 @@ class DivPlatformYMZ280B: public DivDispatch {
   friend void putDispatchChan(void*,int,int);
 
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
diff --git a/src/engine/platform/zxbeeper.cpp b/src/engine/platform/zxbeeper.cpp
index 90ddfe2c..cf563f27 100644
--- a/src/engine/platform/zxbeeper.cpp
+++ b/src/engine/platform/zxbeeper.cpp
@@ -27,7 +27,7 @@ const char** DivPlatformZXBeeper::getRegisterSheet() {
   return NULL;
 }
 
-void DivPlatformZXBeeper::acquire(short* bufL, short* bufR, size_t start, size_t len) {
+void DivPlatformZXBeeper::acquire(short** buf, size_t len) {
   bool o=false;
   for (size_t h=start; h<start+len; h++) {
     // clock here
@@ -46,7 +46,7 @@ void DivPlatformZXBeeper::acquire(short* bufL, short* bufR, size_t start, size_t
         }
       }
       o=sampleOut;
-      bufL[h]=o?16384:0;
+      buf[0][h]=o?16384:0;
       oscBuf[0]->data[oscBuf[0]->needle++]=o?16384:-16384;
       continue;
     }
@@ -64,7 +64,7 @@ void DivPlatformZXBeeper::acquire(short* bufL, short* bufR, size_t start, size_t
     }
     if (++curChan>=6) curChan=0;
     
-    bufL[h]=o?16384:0;
+    buf[0][h]=o?16384:0;
     oscBuf[0]->data[oscBuf[0]->needle++]=o?16384:-16384;
   }
 }
diff --git a/src/engine/platform/zxbeeper.h b/src/engine/platform/zxbeeper.h
index 19c3e6ed..a9b3594c 100644
--- a/src/engine/platform/zxbeeper.h
+++ b/src/engine/platform/zxbeeper.h
@@ -52,7 +52,7 @@ class DivPlatformZXBeeper: public DivDispatch {
   friend void putDispatchChip(void*,int);
   friend void putDispatchChan(void*,int,int);
   public:
-    void acquire(short* bufL, short* bufR, size_t start, size_t len);
+    void acquire(short** buf, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);