diff --git a/src/burn/snd/burn_ym2151.cpp b/src/burn/snd/burn_ym2151.cpp
index b0eb29b15..70a3a07db 100644
--- a/src/burn/snd/burn_ym2151.cpp
+++ b/src/burn/snd/burn_ym2151.cpp
@@ -147,6 +147,7 @@ void BurnYM2151Reset()
 	if (!DebugSnd_YM2151Initted) bprintf(PRINT_ERROR, _T("BurnYM2151Reset called without init\n"));
 #endif
 
+	memset(&BurnYM2151Registers, 0, sizeof(BurnYM2151Registers));
 	YM2151ResetChip(0);
 }
 
@@ -201,6 +202,7 @@ INT32 BurnYM2151Init(INT32 nClockFrequency)
 	nFractionalPosition = 4 << 16;
 	nSamplesRendered = 0;
 	nBurnPosition = 0;
+	memset(&BurnYM2151Registers, 0, sizeof(BurnYM2151Registers));
 	
 	// default routes
 	YM2151Volumes[BURN_SND_YM2151_YM2151_ROUTE_1] = 1.00;
diff --git a/src/burn/snd/burn_ym2203.cpp b/src/burn/snd/burn_ym2203.cpp
index 4f1216613..8e5fec551 100644
--- a/src/burn/snd/burn_ym2203.cpp
+++ b/src/burn/snd/burn_ym2203.cpp
@@ -384,8 +384,10 @@ static void YM2203UpdateNormal(INT16* pSoundBuf, INT32 nSegmentEnd)
 		nRightSample = BURN_SND_CLIP(nRightSample);
 			
 		if (bYM2203AddSignal) {
-			pSoundBuf[(n << 1) + 0] += nLeftSample;
-			pSoundBuf[(n << 1) + 1] += nRightSample;
+			//pSoundBuf[(n << 1) + 0] += nLeftSample;
+			//pSoundBuf[(n << 1) + 1] += nRightSample;
+			pSoundBuf[(n << 1) + 0] = BURN_SND_CLIP(pSoundBuf[(n << 1) + 0] + nLeftSample);
+			pSoundBuf[(n << 1) + 1] = BURN_SND_CLIP(pSoundBuf[(n << 1) + 1] + nRightSample);
 		} else {
 			pSoundBuf[(n << 1) + 0] = nLeftSample;
 			pSoundBuf[(n << 1) + 1] = nRightSample;
diff --git a/src/burn/snd/burn_ym2610.cpp b/src/burn/snd/burn_ym2610.cpp
index d1ffdfec5..f9a40ddcc 100644
--- a/src/burn/snd/burn_ym2610.cpp
+++ b/src/burn/snd/burn_ym2610.cpp
@@ -307,8 +307,10 @@ static void YM2610UpdateNormal(INT16* pSoundBuf, INT32 nSegmentEnd)
 		nRightSample = BURN_SND_CLIP(nRightSample);
 			
 		if (bYM2610AddSignal) {
-			pSoundBuf[(n << 1) + 0] += nLeftSample;
-			pSoundBuf[(n << 1) + 1] += nRightSample;
+			//pSoundBuf[(n << 1) + 0] += nLeftSample;
+			//pSoundBuf[(n << 1) + 1] += nRightSample;
+			pSoundBuf[(n << 1) + 0] = BURN_SND_CLIP(pSoundBuf[(n << 1) + 0] + nLeftSample);
+			pSoundBuf[(n << 1) + 1] = BURN_SND_CLIP(pSoundBuf[(n << 1) + 1] + nRightSample);
 		} else {
 			pSoundBuf[(n << 1) + 0] = nLeftSample;
 			pSoundBuf[(n << 1) + 1] = nRightSample;
diff --git a/src/burn/snd/burn_ym3812.cpp b/src/burn/snd/burn_ym3812.cpp
index 7ba7def9d..fba08ce67 100644
--- a/src/burn/snd/burn_ym3812.cpp
+++ b/src/burn/snd/burn_ym3812.cpp
@@ -452,8 +452,10 @@ static void YM3812UpdateNormal(INT16* pSoundBuf, INT32 nSegmentEnd)
 		nRightSample = BURN_SND_CLIP(nRightSample);
 			
 		if (bYM3812AddSignal) {
-			pSoundBuf[(n << 1) + 0] += nLeftSample;
-			pSoundBuf[(n << 1) + 1] += nRightSample;
+			//pSoundBuf[(n << 1) + 0] += nLeftSample;
+			//pSoundBuf[(n << 1) + 1] += nRightSample;
+			pSoundBuf[(n << 1) + 0] = BURN_SND_CLIP(pSoundBuf[(n << 1) + 0] + nLeftSample);
+			pSoundBuf[(n << 1) + 1] = BURN_SND_CLIP(pSoundBuf[(n << 1) + 1] + nRightSample);
 		} else {
 			pSoundBuf[(n << 1) + 0] = nLeftSample;
 			pSoundBuf[(n << 1) + 1] = nRightSample;