diff --git a/src/engine/dispatch.h b/src/engine/dispatch.h
index 0287f01c..5607defc 100644
--- a/src/engine/dispatch.h
+++ b/src/engine/dispatch.h
@@ -572,9 +572,10 @@ class DivDispatch {
 #define NOTE_FNUM_BLOCK(x,bits) parent->calcBaseFreqFNumBlock(chipClock,CHIP_FREQBASE,x,bits)
 
 // this is for volume scaling calculation.
-#define VOL_SCALE_LINEAR_BROKEN(x,y,range) ((parent->song.newVolumeScaling)?(((x)*(y))/(range)):(CLAMP(((x)+(y))-(range),0,(range))))
 #define VOL_SCALE_LINEAR(x,y,range) (((x)*(y))/(range))
-#define VOL_SCALE_LOG(x,y,range) ((parent->song.newVolumeScaling)?(CLAMP(((x)+(y))-(range),0,(range))):(((x)*(y))/(range)))
+#define VOL_SCALE_LOG(x,y,range) (CLAMP(((x)+(y))-(range),0,(range)))
+#define VOL_SCALE_LINEAR_BROKEN(x,y,range) ((parent->song.newVolumeScaling)?(VOL_SCALE_LINEAR(x,y,range)):(VOL_SCALE_LOG(x,y,range)))
+#define VOL_SCALE_LOG_BROKEN(x,y,range) ((parent->song.newVolumeScaling)?(VOL_SCALE_LOG(x,y,range)):(VOL_SCALE_LINEAR(x,y,range)))
 
 // these are here for convenience.
 // it is encouraged to use these, since you get an exact value this way.
diff --git a/src/engine/platform/arcade.cpp b/src/engine/platform/arcade.cpp
index ee003b54..b782e265 100644
--- a/src/engine/platform/arcade.cpp
+++ b/src/engine/platform/arcade.cpp
@@ -147,12 +147,12 @@ void DivPlatformArcade::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
       for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -236,7 +236,7 @@ void DivPlatformArcade::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -294,7 +294,7 @@ void DivPlatformArcade::tick(bool sysTick) {
       if (m.tl.had) {
         op.tl=127-m.tl.val;
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -396,7 +396,7 @@ int DivPlatformArcade::dispatch(DivCommand c) {
         DivInstrumentFM::Operator op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
           if (!chan[c.chan].active || chan[c.chan].insChanged) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
           }
         } else {
           if (chan[c.chan].insChanged) {
@@ -453,7 +453,7 @@ int DivPlatformArcade::dispatch(DivCommand c) {
         unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
         DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -550,7 +550,7 @@ int DivPlatformArcade::dispatch(DivCommand c) {
       DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
       op.tl=c.value2;
       if (KVS(c.chan,c.value)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
@@ -751,7 +751,7 @@ void DivPlatformArcade::forceIns() {
       unsigned short baseAddr=chanOffs[i]|opOffs[j];
       DivInstrumentFM::Operator op=chan[i].state.op[j];
       if (KVS(i,j)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
diff --git a/src/engine/platform/genesis.cpp b/src/engine/platform/genesis.cpp
index 0eb4aebb..063122cd 100644
--- a/src/engine/platform/genesis.cpp
+++ b/src/engine/platform/genesis.cpp
@@ -261,7 +261,7 @@ void DivPlatformGenesis::tick(bool sysTick) {
       if (chan[i].furnaceDac && inVol>0) {
         inVol+=63;
       }
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(127,inVol),127);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(127,inVol),127);
       if (i<6) for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
@@ -269,7 +269,7 @@ void DivPlatformGenesis::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -342,7 +342,7 @@ void DivPlatformGenesis::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -399,7 +399,7 @@ void DivPlatformGenesis::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -516,7 +516,7 @@ void DivPlatformGenesis::muteChannel(int ch, bool mute) {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(ch,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[ch].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[ch].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -630,7 +630,7 @@ int DivPlatformGenesis::dispatch(DivCommand c) {
         } else {
           if (KVS(c.chan,i)) {
             if (!chan[c.chan].active || chan[c.chan].insChanged) {
-              rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+              rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
             }
           } else {
             if (chan[c.chan].insChanged) {
@@ -702,7 +702,7 @@ int DivPlatformGenesis::dispatch(DivCommand c) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(c.chan,i)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -875,7 +875,7 @@ int DivPlatformGenesis::dispatch(DivCommand c) {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(c.chan,c.value)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -1066,7 +1066,7 @@ void DivPlatformGenesis::forceIns() {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
diff --git a/src/engine/platform/genesisext.cpp b/src/engine/platform/genesisext.cpp
index 2134568a..3e271410 100644
--- a/src/engine/platform/genesisext.cpp
+++ b/src/engine/platform/genesisext.cpp
@@ -60,7 +60,7 @@ int DivPlatformGenesisExt::dispatch(DivCommand c) {
         rWrite(baseAddr+0x40,127);
       } else {
         if (opChan[ch].insChanged) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
         }
       }
       if (opChan[ch].insChanged) {
@@ -99,7 +99,7 @@ int DivPlatformGenesisExt::dispatch(DivCommand c) {
       if (isOpMuted[ch]) {
         rWrite(baseAddr+0x40,127);
       } else {
-        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
       }
       break;
     }
@@ -210,7 +210,7 @@ int DivPlatformGenesisExt::dispatch(DivCommand c) {
       if (isOpMuted[ch]) {
         rWrite(baseAddr+0x40,127);
       } else if (KVS(2,c.value)) {
-        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
       } else {
         rWrite(baseAddr+0x40,op.tl);
       }
@@ -393,8 +393,8 @@ void DivPlatformGenesisExt::muteChannel(int ch, bool mute) {
     rWrite(baseAddr+0x40,127);
     immWrite(baseAddr+0x40,127);
   } else if (KVS(2,ordch)) {
-    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch-2].vol&0x7f,127));
-    immWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch-2].vol&0x7f,127));
+    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch-2].vol&0x7f,127));
+    immWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch-2].vol&0x7f,127));
   } else {
     rWrite(baseAddr+0x40,op.tl);
     immWrite(baseAddr+0x40,op.tl);
@@ -527,7 +527,7 @@ void DivPlatformGenesisExt::forceIns() {
         if (isOpMuted[j]) {
           rWrite(baseAddr+0x40,127);
         } else if (KVS(i,j)) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[j].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[j].vol&0x7f,127));
         } else {
           rWrite(baseAddr+0x40,op.tl);
         }
@@ -536,7 +536,7 @@ void DivPlatformGenesisExt::forceIns() {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
diff --git a/src/engine/platform/msm6295.cpp b/src/engine/platform/msm6295.cpp
index d22aabd5..d46a9bb6 100644
--- a/src/engine/platform/msm6295.cpp
+++ b/src/engine/platform/msm6295.cpp
@@ -92,7 +92,7 @@ void DivPlatformMSM6295::tick(bool sysTick) {
     if (!parent->song.disableSampleMacro) {
       chan[i].std.next();
       if (chan[i].std.vol.had) {
-        chan[i].outVol=VOL_SCALE_LOG(chan[i].std.vol.val,chan[i].vol,8);
+        chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].std.vol.val,chan[i].vol,8);
       }
       if (chan[i].std.duty.had) {
         if (rateSel!=(chan[i].std.duty.val&1)) {
diff --git a/src/engine/platform/opl.cpp b/src/engine/platform/opl.cpp
index 1157bf50..e7152bca 100644
--- a/src/engine/platform/opl.cpp
+++ b/src/engine/platform/opl.cpp
@@ -285,7 +285,7 @@ void DivPlatformOPL::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(63,chan[i].std.vol.val),63);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(63,chan[i].std.vol.val),63);
       for (int j=0; j<ops; j++) {
         unsigned char slot=slots[j][i];
         if (slot==255) continue;
@@ -296,7 +296,7 @@ void DivPlatformOPL::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
         } else {
           if (KVSL(i,j) || i>melodicChans) {
-            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[i].outVol&0x3f,63))|(op.ksl<<6));
+            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[i].outVol&0x3f,63))|(op.ksl<<6));
           } else {
             rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
           }
@@ -414,7 +414,7 @@ void DivPlatformOPL::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
         } else {
           if (KVSL(i,j) || i>melodicChans) {
-            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[i].outVol&0x3f,63))|(op.ksl<<6));
+            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[i].outVol&0x3f,63))|(op.ksl<<6));
           } else {
             rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
           }
@@ -642,7 +642,7 @@ void DivPlatformOPL::muteChannel(int ch, bool mute) {
       rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
     } else {
       if (KVSL(ch,i) || ch>melodicChans) {
-        rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[ch].outVol&0x3f,63))|(op.ksl<<6));
+        rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[ch].outVol&0x3f,63))|(op.ksl<<6));
       } else {
         rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
       }
@@ -778,7 +778,7 @@ int DivPlatformOPL::dispatch(DivCommand c) {
             if (isMuted[ch]) {
               rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
             } else {
-              rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[ch].outVol&0x3f,63))|(op.ksl<<6));
+              rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[ch].outVol&0x3f,63))|(op.ksl<<6));
             }
 
             rWrite(baseAddr+ADDR_AM_VIB_SUS_KSR_MULT,(op.am<<7)|(op.vib<<6)|(op.sus<<5)|(op.ksr<<4)|op.mult);
@@ -820,7 +820,7 @@ int DivPlatformOPL::dispatch(DivCommand c) {
               rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
             } else {
               if (KVSL(c.chan,i) || c.chan>melodicChans) {
-                rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
+                rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
               } else {
                 rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
               }
@@ -928,7 +928,7 @@ int DivPlatformOPL::dispatch(DivCommand c) {
           rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
         } else {
           if (KVSL(c.chan,i) || c.chan>melodicChans) {
-            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
+            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
           } else {
             rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
           }
@@ -1077,7 +1077,7 @@ int DivPlatformOPL::dispatch(DivCommand c) {
         rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
       } else {
         if (KVSL(c.chan,c.value) || c.chan>melodicChans) {
-          rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
+          rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
         } else {
           rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
         }
@@ -1307,7 +1307,7 @@ int DivPlatformOPL::dispatch(DivCommand c) {
             rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
           } else {
             if (KVSL(c.chan,i) || c.chan>melodicChans) {
-              rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
+              rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
             } else {
               rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
             }
@@ -1324,7 +1324,7 @@ int DivPlatformOPL::dispatch(DivCommand c) {
           rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
         } else {
           if (KVSL(c.chan,c.value) || c.chan>melodicChans) {
-            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
+            rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[c.chan].outVol&0x3f,63))|(op.ksl<<6));
           } else {
             rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
           }
@@ -1401,7 +1401,7 @@ void DivPlatformOPL::forceIns() {
         rWrite(baseAddr+ADDR_KSL_TL,63|(op.ksl<<6));
       } else {
         if (KVSL(i,j) || i>melodicChans) {
-          rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG(63-op.tl,chan[i].outVol&0x3f,63))|(op.ksl<<6));
+          rWrite(baseAddr+ADDR_KSL_TL,(63-VOL_SCALE_LOG_BROKEN(63-op.tl,chan[i].outVol&0x3f,63))|(op.ksl<<6));
         } else {
           rWrite(baseAddr+ADDR_KSL_TL,op.tl|(op.ksl<<6));
         }
diff --git a/src/engine/platform/opll.cpp b/src/engine/platform/opll.cpp
index 4c53350c..264f3a7a 100644
--- a/src/engine/platform/opll.cpp
+++ b/src/engine/platform/opll.cpp
@@ -99,9 +99,9 @@ void DivPlatformOPLL::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(15,chan[i].std.vol.val),15);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(15,chan[i].std.vol.val),15);
       if (i<9) {
-        rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
+        rWrite(0x30+i,((15-VOL_SCALE_LOG_BROKEN(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
       }
     }
 
@@ -115,7 +115,7 @@ void DivPlatformOPLL::tick(bool sysTick) {
     if (chan[i].std.wave.had && chan[i].state.opllPreset!=16) {
       chan[i].state.opllPreset=chan[i].std.wave.val;
       if (i<9) {
-        rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
+        rWrite(0x30+i,((15-VOL_SCALE_LOG_BROKEN(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
       }
     }
 
@@ -185,7 +185,7 @@ void DivPlatformOPLL::tick(bool sysTick) {
           op.tl=((j==1)?15:63)-m.tl.val;
           if (j==1) {
             if (i<9) {
-              rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
+              rWrite(0x30+i,((15-VOL_SCALE_LOG_BROKEN(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
             }
           } else {
             rWrite(0x02,(chan[i].state.op[0].ksl<<6)|(op.tl&63));
@@ -410,7 +410,7 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
             }
           }
           if (c.chan<9) {
-            rWrite(0x30+c.chan,((15-VOL_SCALE_LOG(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
+            rWrite(0x30+c.chan,((15-VOL_SCALE_LOG_BROKEN(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
           }
         }
       }
@@ -480,7 +480,7 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
         break;
       } else if (c.chan<6 || !drums) {
         if (c.chan<9) {
-          rWrite(0x30+c.chan,((15-VOL_SCALE_LOG(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
+          rWrite(0x30+c.chan,((15-VOL_SCALE_LOG_BROKEN(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
         }
       }
       break;
@@ -574,7 +574,7 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
         DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
         car.tl=c.value2&15;
         if (c.chan<9) {
-          rWrite(0x30+c.chan,((15-VOL_SCALE_LOG(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
+          rWrite(0x30+c.chan,((15-VOL_SCALE_LOG_BROKEN(chan[c.chan].outVol,15-chan[c.chan].state.op[1].tl,15))&15)|(chan[c.chan].state.opllPreset<<4));
         }
       }
       break;
@@ -790,7 +790,7 @@ void DivPlatformOPLL::forceIns() {
       rWrite(0x07,(car.sl<<4)|(car.rr));
     }
     if (i<9) {
-      rWrite(0x30+i,((15-VOL_SCALE_LOG(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
+      rWrite(0x30+i,((15-VOL_SCALE_LOG_BROKEN(chan[i].outVol,15-chan[i].state.op[1].tl,15))&15)|(chan[i].state.opllPreset<<4));
     }
     if (!(i>=6 && properDrums)) {
       if (chan[i].active) {
diff --git a/src/engine/platform/pce.cpp b/src/engine/platform/pce.cpp
index 518b598f..b40fa92d 100644
--- a/src/engine/platform/pce.cpp
+++ b/src/engine/platform/pce.cpp
@@ -153,7 +153,7 @@ void DivPlatformPCE::tick(bool sysTick) {
 
     chan[i].std.next();
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol&31,MIN(31,chan[i].std.vol.val),31);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol&31,MIN(31,chan[i].std.vol.val),31);
       if (chan[i].furnaceDac && chan[i].pcm) {
         // ignore for now
       } else {
diff --git a/src/engine/platform/sms.cpp b/src/engine/platform/sms.cpp
index 83ce707f..d55e9349 100644
--- a/src/engine/platform/sms.cpp
+++ b/src/engine/platform/sms.cpp
@@ -125,7 +125,7 @@ void DivPlatformSMS::tick(bool sysTick) {
     if (i==3) CHIP_DIVIDER=noiseDivider;
     chan[i].std.next();
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].std.vol.val,chan[i].vol,15);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].std.vol.val,chan[i].vol,15);
       if (chan[i].outVol<0) chan[i].outVol=0;
       // old formula
       // ((chan[i].vol&15)*MIN(15,chan[i].std.vol.val))>>4;
diff --git a/src/engine/platform/t6w28.cpp b/src/engine/platform/t6w28.cpp
index 0abb39fa..0f4dbf82 100644
--- a/src/engine/platform/t6w28.cpp
+++ b/src/engine/platform/t6w28.cpp
@@ -87,7 +87,7 @@ void DivPlatformT6W28::tick(bool sysTick) {
     if (i==3) CHIP_DIVIDER=15;
     chan[i].std.next();
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol&15,MIN(15,chan[i].std.vol.val),15);
     }
     if (chan[i].std.arp.had) {
       if (!chan[i].inPorta) {
diff --git a/src/engine/platform/tx81z.cpp b/src/engine/platform/tx81z.cpp
index c205435e..fb636966 100644
--- a/src/engine/platform/tx81z.cpp
+++ b/src/engine/platform/tx81z.cpp
@@ -105,7 +105,7 @@ void DivPlatformTX81Z::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
       for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
@@ -113,7 +113,7 @@ void DivPlatformTX81Z::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -180,7 +180,7 @@ void DivPlatformTX81Z::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -233,7 +233,7 @@ void DivPlatformTX81Z::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -325,7 +325,7 @@ void DivPlatformTX81Z::muteChannel(int ch, bool mute) {
       rWrite(baseAddr+ADDR_TL,127);
     } else {
       if (KVS(ch,i)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[ch].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[ch].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
@@ -355,7 +355,7 @@ int DivPlatformTX81Z::dispatch(DivCommand c) {
         } else {
           if (KVS(c.chan,i)) {
             if (!chan[c.chan].active || chan[c.chan].insChanged) {
-              rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+              rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
             }
           } else {
             if (chan[c.chan].insChanged) {
@@ -420,7 +420,7 @@ int DivPlatformTX81Z::dispatch(DivCommand c) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(c.chan,i)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -520,7 +520,7 @@ int DivPlatformTX81Z::dispatch(DivCommand c) {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(c.chan,c.value)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -812,7 +812,7 @@ void DivPlatformTX81Z::forceIns() {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
diff --git a/src/engine/platform/ym2203.cpp b/src/engine/platform/ym2203.cpp
index cd85731e..d3a5e5ed 100644
--- a/src/engine/platform/ym2203.cpp
+++ b/src/engine/platform/ym2203.cpp
@@ -214,7 +214,7 @@ void DivPlatformYM2203::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
       for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
@@ -222,7 +222,7 @@ void DivPlatformYM2203::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -263,7 +263,7 @@ void DivPlatformYM2203::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -312,7 +312,7 @@ void DivPlatformYM2203::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -430,7 +430,7 @@ int DivPlatformYM2203::dispatch(DivCommand c) {
         } else {
           if (KVS(c.chan,i)) {
             if (!chan[c.chan].active || chan[c.chan].insChanged) {
-              rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+              rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
             }
           } else {
             if (chan[c.chan].insChanged) {
@@ -489,7 +489,7 @@ int DivPlatformYM2203::dispatch(DivCommand c) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(c.chan,i)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -574,7 +574,7 @@ int DivPlatformYM2203::dispatch(DivCommand c) {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(c.chan,c.value)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -766,7 +766,7 @@ void DivPlatformYM2203::muteChannel(int ch, bool mute) {
       rWrite(baseAddr+ADDR_TL,127);
     } else {
       if (KVS(ch,j)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[ch].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[ch].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
@@ -783,7 +783,7 @@ void DivPlatformYM2203::forceIns() {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
diff --git a/src/engine/platform/ym2203ext.cpp b/src/engine/platform/ym2203ext.cpp
index 9c404ca6..21465da7 100644
--- a/src/engine/platform/ym2203ext.cpp
+++ b/src/engine/platform/ym2203ext.cpp
@@ -49,7 +49,7 @@ int DivPlatformYM2203Ext::dispatch(DivCommand c) {
         rWrite(baseAddr+0x40,127);
       } else {
         if (opChan[ch].insChanged) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
         }
       }
       if (opChan[ch].insChanged) {
@@ -88,7 +88,7 @@ int DivPlatformYM2203Ext::dispatch(DivCommand c) {
       if (isOpMuted[ch]) {
         rWrite(baseAddr+0x40,127);
       } else {
-        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
       }
       break;
     }
@@ -411,7 +411,7 @@ void DivPlatformYM2203Ext::muteChannel(int ch, bool mute) {
   if (isOpMuted[ch-2]) {
     rWrite(baseAddr+0x40,127);
   } else if (isOutput[ins->fm.alg][ordch]) {
-    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch-2].vol&0x7f,127));
+    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch-2].vol&0x7f,127));
   } else {
     rWrite(baseAddr+0x40,op.tl);
   }
@@ -426,7 +426,7 @@ void DivPlatformYM2203Ext::forceIns() {
         rWrite(baseAddr+ADDR_TL,127);
       } else {
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
diff --git a/src/engine/platform/ym2608.cpp b/src/engine/platform/ym2608.cpp
index ad31e4a4..79ae9511 100644
--- a/src/engine/platform/ym2608.cpp
+++ b/src/engine/platform/ym2608.cpp
@@ -364,12 +364,12 @@ void DivPlatformYM2608::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
       for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -414,7 +414,7 @@ void DivPlatformYM2608::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -468,7 +468,7 @@ void DivPlatformYM2608::tick(bool sysTick) {
       if (m.tl.had) {
         op.tl=127-m.tl.val;
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -787,7 +787,7 @@ int DivPlatformYM2608::dispatch(DivCommand c) {
         DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
           if (!chan[c.chan].active || chan[c.chan].insChanged) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
           }
         } else {
           if (chan[c.chan].insChanged) {
@@ -851,7 +851,7 @@ int DivPlatformYM2608::dispatch(DivCommand c) {
         unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
         DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -969,7 +969,7 @@ int DivPlatformYM2608::dispatch(DivCommand c) {
       DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
       op.tl=c.value2;
       if (KVS(c.chan,c.value)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
@@ -1172,7 +1172,7 @@ void DivPlatformYM2608::forceIns() {
       unsigned short baseAddr=chanOffs[i]|opOffs[j];
       DivInstrumentFM::Operator& op=chan[i].state.op[j];
       if (KVS(i,j)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
diff --git a/src/engine/platform/ym2608ext.cpp b/src/engine/platform/ym2608ext.cpp
index 925e7084..331f3887 100644
--- a/src/engine/platform/ym2608ext.cpp
+++ b/src/engine/platform/ym2608ext.cpp
@@ -49,7 +49,7 @@ int DivPlatformYM2608Ext::dispatch(DivCommand c) {
         rWrite(baseAddr+0x40,127);
       } else {
         if (opChan[ch].insChanged) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
         }
       }
       if (opChan[ch].insChanged) {
@@ -89,7 +89,7 @@ int DivPlatformYM2608Ext::dispatch(DivCommand c) {
       if (isOpMuted[ch]) {
         rWrite(baseAddr+0x40,127);
       } else {
-        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
       }
       break;
     }
@@ -428,7 +428,7 @@ void DivPlatformYM2608Ext::muteChannel(int ch, bool mute) {
   if (isOpMuted[ch-2]) {
     rWrite(baseAddr+0x40,127);
   } else if (isOutput[ins->fm.alg][ordch]) {
-    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch-2].vol&0x7f,127));
+    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch-2].vol&0x7f,127));
   } else {
     rWrite(baseAddr+0x40,op.tl);
   }
@@ -443,7 +443,7 @@ void DivPlatformYM2608Ext::forceIns() {
         if (isOpMuted[j]) {
           rWrite(baseAddr+0x40,127);
         } else if (KVS(i,j)) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[j].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[j].vol&0x7f,127));
         } else {
           rWrite(baseAddr+0x40,op.tl);
         }
@@ -452,7 +452,7 @@ void DivPlatformYM2608Ext::forceIns() {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
diff --git a/src/engine/platform/ym2610.cpp b/src/engine/platform/ym2610.cpp
index f4a7dbfe..12434b06 100644
--- a/src/engine/platform/ym2610.cpp
+++ b/src/engine/platform/ym2610.cpp
@@ -301,12 +301,12 @@ void DivPlatformYM2610::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
       for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -351,7 +351,7 @@ void DivPlatformYM2610::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -405,7 +405,7 @@ void DivPlatformYM2610::tick(bool sysTick) {
       if (m.tl.had) {
         op.tl=127-m.tl.val;
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -767,7 +767,7 @@ int DivPlatformYM2610::dispatch(DivCommand c) {
         DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
           if (!chan[c.chan].active || chan[c.chan].insChanged) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
           }
         } else {
           if (chan[c.chan].insChanged) {
@@ -831,7 +831,7 @@ int DivPlatformYM2610::dispatch(DivCommand c) {
         unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
         DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -949,7 +949,7 @@ int DivPlatformYM2610::dispatch(DivCommand c) {
       DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
       op.tl=c.value2;
       if (KVS(c.chan,c.value)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
@@ -1145,7 +1145,7 @@ void DivPlatformYM2610::forceIns() {
       unsigned short baseAddr=chanOffs[i]|opOffs[j];
       DivInstrumentFM::Operator& op=chan[i].state.op[j];
       if (KVS(i,j)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
diff --git a/src/engine/platform/ym2610b.cpp b/src/engine/platform/ym2610b.cpp
index b19ad5d7..e005131c 100644
--- a/src/engine/platform/ym2610b.cpp
+++ b/src/engine/platform/ym2610b.cpp
@@ -364,12 +364,12 @@ void DivPlatformYM2610B::tick(bool sysTick) {
     chan[i].std.next();
 
     if (chan[i].std.vol.had) {
-      chan[i].outVol=VOL_SCALE_LOG(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
+      chan[i].outVol=VOL_SCALE_LOG_BROKEN(chan[i].vol,MIN(127,chan[i].std.vol.val),127);
       for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -414,7 +414,7 @@ void DivPlatformYM2610B::tick(bool sysTick) {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
@@ -468,7 +468,7 @@ void DivPlatformYM2610B::tick(bool sysTick) {
       if (m.tl.had) {
         op.tl=127-m.tl.val;
         if (KVS(i,j)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -830,7 +830,7 @@ int DivPlatformYM2610B::dispatch(DivCommand c) {
         DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
           if (!chan[c.chan].active || chan[c.chan].insChanged) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
           }
         } else {
           if (chan[c.chan].insChanged) {
@@ -894,7 +894,7 @@ int DivPlatformYM2610B::dispatch(DivCommand c) {
         unsigned short baseAddr=chanOffs[c.chan]|opOffs[i];
         DivInstrumentFM::Operator& op=chan[c.chan].state.op[i];
         if (KVS(c.chan,i)) {
-          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+          rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
         } else {
           rWrite(baseAddr+ADDR_TL,op.tl);
         }
@@ -1012,7 +1012,7 @@ int DivPlatformYM2610B::dispatch(DivCommand c) {
       DivInstrumentFM::Operator& op=chan[c.chan].state.op[orderedOps[c.value]];
       op.tl=c.value2;
       if (KVS(c.chan,c.value)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[c.chan].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[c.chan].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
@@ -1208,7 +1208,7 @@ void DivPlatformYM2610B::forceIns() {
       unsigned short baseAddr=chanOffs[i]|opOffs[j];
       DivInstrumentFM::Operator& op=chan[i].state.op[j];
       if (KVS(i,j)) {
-        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+        rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
       } else {
         rWrite(baseAddr+ADDR_TL,op.tl);
       }
diff --git a/src/engine/platform/ym2610bext.cpp b/src/engine/platform/ym2610bext.cpp
index e09f0c57..0f9b3819 100644
--- a/src/engine/platform/ym2610bext.cpp
+++ b/src/engine/platform/ym2610bext.cpp
@@ -45,7 +45,7 @@ int DivPlatformYM2610BExt::dispatch(DivCommand c) {
         rWrite(baseAddr+0x40,127);
       } else {
         if (opChan[ch].insChanged) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
         }
       }
       if (opChan[ch].insChanged) {
@@ -85,7 +85,7 @@ int DivPlatformYM2610BExt::dispatch(DivCommand c) {
       if (isOpMuted[ch]) {
         rWrite(baseAddr+0x40,127);
       } else {
-        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
       }
       break;
     }
@@ -424,7 +424,7 @@ void DivPlatformYM2610BExt::muteChannel(int ch, bool mute) {
   if (isOpMuted[ch-extChanOffs]) {
     rWrite(baseAddr+0x40,127);
   } else if (isOutput[ins->fm.alg][ordch]) {
-    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch-extChanOffs].vol&0x7f,127));
+    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch-extChanOffs].vol&0x7f,127));
   } else {
     rWrite(baseAddr+0x40,op.tl);
   }
@@ -439,7 +439,7 @@ void DivPlatformYM2610BExt::forceIns() {
         if (isOpMuted[j]) {
           rWrite(baseAddr+0x40,127);
         } else if (KVS(i,j)) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[j].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[j].vol&0x7f,127));
         } else {
           rWrite(baseAddr+0x40,op.tl);
         }
@@ -448,7 +448,7 @@ void DivPlatformYM2610BExt::forceIns() {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }
diff --git a/src/engine/platform/ym2610ext.cpp b/src/engine/platform/ym2610ext.cpp
index 5a0fadab..2a428b6d 100644
--- a/src/engine/platform/ym2610ext.cpp
+++ b/src/engine/platform/ym2610ext.cpp
@@ -45,7 +45,7 @@ int DivPlatformYM2610Ext::dispatch(DivCommand c) {
         rWrite(baseAddr+0x40,127);
       } else {
         if (opChan[ch].insChanged) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
         }
       }
       if (opChan[ch].insChanged) {
@@ -85,7 +85,7 @@ int DivPlatformYM2610Ext::dispatch(DivCommand c) {
       if (isOpMuted[ch]) {
         rWrite(baseAddr+0x40,127);
       } else {
-        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch].vol&0x7f,127));
+        rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch].vol&0x7f,127));
       }
       break;
     }
@@ -424,7 +424,7 @@ void DivPlatformYM2610Ext::muteChannel(int ch, bool mute) {
   if (isOpMuted[ch]) {
     rWrite(baseAddr+0x40,127);
   } else if (isOutput[ins->fm.alg][ordch]) {
-    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[ch-extChanOffs].vol&0x7f,127));
+    rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[ch-extChanOffs].vol&0x7f,127));
   } else {
     rWrite(baseAddr+0x40,op.tl);
   }
@@ -439,7 +439,7 @@ void DivPlatformYM2610Ext::forceIns() {
         if (isOpMuted[j]) {
           rWrite(baseAddr+0x40,127);
         } else if (KVS(i,j)) {
-          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG(127-op.tl,opChan[j].vol&0x7f,127));
+          rWrite(baseAddr+0x40,127-VOL_SCALE_LOG_BROKEN(127-op.tl,opChan[j].vol&0x7f,127));
         } else {
           rWrite(baseAddr+0x40,op.tl);
         }
@@ -448,7 +448,7 @@ void DivPlatformYM2610Ext::forceIns() {
           rWrite(baseAddr+ADDR_TL,127);
         } else {
           if (KVS(i,j)) {
-            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG(127-op.tl,chan[i].outVol&0x7f,127));
+            rWrite(baseAddr+ADDR_TL,127-VOL_SCALE_LOG_BROKEN(127-op.tl,chan[i].outVol&0x7f,127));
           } else {
             rWrite(baseAddr+ADDR_TL,op.tl);
           }