diff --git a/src/engine/chipUtils.h b/src/engine/chipUtils.h
index 13c302f7a..073783ef8 100644
--- a/src/engine/chipUtils.h
+++ b/src/engine/chipUtils.h
@@ -56,11 +56,10 @@ struct SharedChannelFreq: public SharedChannel {
 // common shared channel volume struct
 template<typename T>
 struct SharedChannelVolume {
-  T vol, outVol, resVol;
+  T vol, outVol;
   SharedChannelVolume(T initVol):
     vol(initVol),
-    outVol(initVol),
-    resVol(initVol) {}
+    outVol(initVol) {}
 };
 
 #endif
diff --git a/src/engine/platform/n163.h b/src/engine/platform/n163.h
index 50142472b..c1af69190 100644
--- a/src/engine/platform/n163.h
+++ b/src/engine/platform/n163.h
@@ -28,6 +28,7 @@
 
 class DivPlatformN163: public DivDispatch {
   struct Channel: public SharedChannelFreq, public SharedChannelVolume<signed char> {
+    signed char resVol;
     short wave, wavePos, waveLen;
     unsigned char waveMode;
     short loadWave, loadPos, loadLen;
@@ -43,6 +44,7 @@ class DivPlatformN163: public DivDispatch {
     Channel():
       SharedChannelFreq(),
       SharedChannelVolume<signed char>(15),
+      resVol(15),
       wave(-1),
       wavePos(0),
       waveLen(0),
diff --git a/src/engine/platform/qsound.h b/src/engine/platform/qsound.h
index a48709886..6586e5df7 100644
--- a/src/engine/platform/qsound.h
+++ b/src/engine/platform/qsound.h
@@ -27,6 +27,7 @@
 
 class DivPlatformQSound: public DivDispatch {
   struct Channel: public SharedChannelFreq, public SharedChannelVolume<int> {
+    int resVol;
     int sample, wave;
     int panning;
     int echo;
@@ -38,7 +39,8 @@ class DivPlatformQSound: public DivDispatch {
     }
     Channel():
       SharedChannelFreq(),
-      SharedChannelVolume<int>(4095),
+      SharedChannelVolume<int>(255),
+      resVol(4095),
       sample(-1),
       panning(0x10),
       echo(0),