diff --git a/src/engine/platform/fmsharedbase.h b/src/engine/platform/fmsharedbase.h
index f8e0268dd..baddd6798 100644
--- a/src/engine/platform/fmsharedbase.h
+++ b/src/engine/platform/fmsharedbase.h
@@ -77,7 +77,7 @@ class DivPlatformFMBase: public DivDispatch {
 
     struct QueuedWrite {
       unsigned int addr;
-      unsigned char val;
+      unsigned short val;
       bool addrOrVal;
       QueuedWrite(): addr(0), val(0), addrOrVal(false) {}
       QueuedWrite(unsigned int a, unsigned char v): addr(a), val(v), addrOrVal(false) {}
@@ -97,7 +97,7 @@ class DivPlatformFMBase: public DivDispatch {
         pendingWrites[a]=v;
       }
     }
-    inline void immWrite(unsigned int a, unsigned char v) {
+    inline void immWrite(unsigned int a, unsigned short v) {
       if (!skipRegisterWrites) {
         writes.push_back(QueuedWrite(a,v));
         if (dumpWrites) {
diff --git a/src/engine/platform/ym2203.cpp b/src/engine/platform/ym2203.cpp
index c85ba93cb..17f742b02 100644
--- a/src/engine/platform/ym2203.cpp
+++ b/src/engine/platform/ym2203.cpp
@@ -188,7 +188,7 @@ void DivPlatformYM2203::acquire_combo(short** buf, size_t len) {
           QueuedWrite& w=writes.front();
 
           if (w.addr==0xfffffffe) {
-            delay=w.val;
+            delay=w.val*24;
             writes.pop_front();
           } else if (w.addr<=0x1c || w.addr==0x2d || w.addr==0x2e || w.addr==0x2f) {
             // ymfm write
@@ -271,7 +271,7 @@ void DivPlatformYM2203::acquire_ymfm(short** buf, size_t len) {
       if (--delay<1) {
         QueuedWrite& w=writes.front();
         if (w.addr==0xfffffffe) {
-          delay=w.val*6;
+          delay=w.val*3;
         } else {
           fm->write(0x0,w.addr);
           fm->write(0x1,w.val);
@@ -668,7 +668,7 @@ void DivPlatformYM2203::tick(bool sysTick) {
 
   // hard reset handling
   if (mustHardReset) {
-    immWrite(0xfffffffe,hardResetCycles-hardResetElapsed);
+    immWrite(0xfffffffe,(hardResetCycles-hardResetElapsed)*3);
     for (int i=0; i<3; i++) {
       if (i==2 && extMode) continue;
       if ((chan[i].keyOn || chan[i].opMaskChanged) && chan[i].hardReset) {
diff --git a/src/engine/platform/ym2203ext.cpp b/src/engine/platform/ym2203ext.cpp
index 9e4da8d24..09198e8d4 100644
--- a/src/engine/platform/ym2203ext.cpp
+++ b/src/engine/platform/ym2203ext.cpp
@@ -595,7 +595,7 @@ void DivPlatformYM2203Ext::tick(bool sysTick) {
 
     // hard reset handling
     if (mustHardReset) {
-      immWrite(0xfffffffe,hardResetCycles-hardResetElapsed);
+      immWrite(0xfffffffe,(hardResetCycles-hardResetElapsed)*3);
       for (int i=0; i<4; i++) {
         if (opChan[i].keyOn && opChan[i].hardReset) {
           // restore SL/RR