diff --git a/extern/SAASound/src/SAADevice.cpp b/extern/SAASound/src/SAADevice.cpp
index 5cfb17b22..9064dcab9 100644
--- a/extern/SAASound/src/SAADevice.cpp
+++ b/extern/SAASound/src/SAADevice.cpp
@@ -307,7 +307,7 @@ BYTE CSAADevice::_ReadData(void)
 }
 #endif
 
-void CSAADevice::_TickAndOutputStereo(unsigned int& left_mixed, unsigned int& right_mixed)
+void CSAADevice::_TickAndOutputStereo(unsigned int& left_mixed, unsigned int& right_mixed, DivDispatchOscBuffer** oscBuf)
 {
 	unsigned int temp_left, temp_right;
 	unsigned int accum_left = 0, accum_right = 0;
@@ -316,21 +316,27 @@ void CSAADevice::_TickAndOutputStereo(unsigned int& left_mixed, unsigned int& ri
 		m_Noise0.Tick();
 		m_Noise1.Tick();
 		m_Amp0.TickAndOutputStereo(temp_left, temp_right);
+    oscBuf[0]->data[oscBuf[0]->needle++]=(temp_left+temp_right)<<4;
 		accum_left += temp_left;
 		accum_right += temp_right;
 		m_Amp1.TickAndOutputStereo(temp_left, temp_right);
+    oscBuf[1]->data[oscBuf[1]->needle++]=(temp_left+temp_right)<<4;
 		accum_left += temp_left;
 		accum_right += temp_right;
 		m_Amp2.TickAndOutputStereo(temp_left, temp_right);
+    oscBuf[2]->data[oscBuf[2]->needle++]=(temp_left+temp_right)<<4;
 		accum_left += temp_left;
 		accum_right += temp_right;
 		m_Amp3.TickAndOutputStereo(temp_left, temp_right);
+    oscBuf[3]->data[oscBuf[3]->needle++]=(temp_left+temp_right)<<4;
 		accum_left += temp_left;
 		accum_right += temp_right;
 		m_Amp4.TickAndOutputStereo(temp_left, temp_right);
+    oscBuf[4]->data[oscBuf[4]->needle++]=(temp_left+temp_right)<<4;
 		accum_left += temp_left;
 		accum_right += temp_right;
 		m_Amp5.TickAndOutputStereo(temp_left, temp_right);
+    oscBuf[5]->data[oscBuf[5]->needle++]=(temp_left+temp_right)<<4;
 		accum_left += temp_left;
 		accum_right += temp_right;
 	}
diff --git a/extern/SAASound/src/SAADevice.h b/extern/SAASound/src/SAADevice.h
index 639d90620..fe4339305 100644
--- a/extern/SAASound/src/SAADevice.h
+++ b/extern/SAASound/src/SAADevice.h
@@ -53,7 +53,7 @@ public:
 	void _SetClockRate(unsigned int nClockRate);
 	void _SetSampleRate(unsigned int nSampleRate);
 	void _SetOversample(unsigned int nOversample);
-	void _TickAndOutputStereo(unsigned int& left_mixed, unsigned int& right_mixed);
+	void _TickAndOutputStereo(unsigned int& left_mixed, unsigned int& right_mixed, DivDispatchOscBuffer** oscBuf);
 	void _TickAndOutputSeparate(unsigned int& left_mixed, unsigned int& right_mixed,
 		unsigned int& left0, unsigned int& right0,
 		unsigned int& left1, unsigned int& right1,
diff --git a/extern/SAASound/src/SAAImpl.cpp b/extern/SAASound/src/SAAImpl.cpp
index 455a6a18b..6602feee9 100644
--- a/extern/SAASound/src/SAAImpl.cpp
+++ b/extern/SAASound/src/SAAImpl.cpp
@@ -298,7 +298,7 @@ void scale_for_output(unsigned int left_input, unsigned int right_input,
 	*pBuffer++ = (right_output >> 8) & 0x00ff;
 }
 
-void CSAASoundInternal::GenerateMany(BYTE* pBuffer, unsigned long nSamples)
+void CSAASoundInternal::GenerateMany(BYTE* pBuffer, unsigned long nSamples, DivDispatchOscBuffer** oscBuf)
 {
 	unsigned int left_mixed, right_mixed;
 	static double filterout_z1_left_mixed = 0, filterout_z1_right_mixed = 0;
@@ -376,7 +376,7 @@ void CSAASoundInternal::GenerateMany(BYTE* pBuffer, unsigned long nSamples)
 #endif
 		while (nSamples--)
 		{
-			m_chip._TickAndOutputStereo(left_mixed, right_mixed);
+			m_chip._TickAndOutputStereo(left_mixed, right_mixed, oscBuf);
 			scale_for_output(left_mixed, right_mixed, oversample, m_bHighpass, nBoost, filterout_z1_left_mixed, filterout_z1_right_mixed, pBuffer);
 		}
 
diff --git a/extern/SAASound/src/SAAImpl.h b/extern/SAASound/src/SAAImpl.h
index 61fa79c58..f5f58d556 100755
--- a/extern/SAASound/src/SAAImpl.h
+++ b/extern/SAASound/src/SAAImpl.h
@@ -68,7 +68,7 @@ public:
 	unsigned short GetCurrentBytesPerSample(void);
 	static unsigned short GetBytesPerSample(SAAPARAM uParam);
 
-	void GenerateMany(BYTE * pBuffer, unsigned long nSamples);
+	void GenerateMany(BYTE * pBuffer, unsigned long nSamples, DivDispatchOscBuffer** oscBuf);
 
 };
 
diff --git a/extern/SAASound/src/SAASndC.cpp b/extern/SAASound/src/SAASndC.cpp
index f03e82114..747c70a73 100755
--- a/extern/SAASound/src/SAASndC.cpp
+++ b/extern/SAASound/src/SAASndC.cpp
@@ -81,7 +81,7 @@ unsigned long SAAAPI SAASNDGetSampleRate(SAAPARAM uParam)
 
 void SAAAPI SAASNDGenerateMany(SAASND object, BYTE * pBuffer, unsigned long nSamples)
 {
-	((LPCSAASOUND)(object))->GenerateMany(pBuffer, nSamples);
+	((LPCSAASOUND)(object))->GenerateMany(pBuffer, nSamples, NULL);
 }
 
 void SAAAPI SAASNDSetSampleRate(SAASND object, unsigned int nSampleRate)
diff --git a/extern/SAASound/src/SAASound.h b/extern/SAASound/src/SAASound.h
index c80831484..7496cc360 100644
--- a/extern/SAASound/src/SAASound.h
+++ b/extern/SAASound/src/SAASound.h
@@ -61,6 +61,8 @@ typedef unsigned long SAAPARAM;
 
 #ifdef __cplusplus
 
+#include "../../src/engine/dispatch.h"
+
 class CSAASound
 {
 public:
@@ -79,7 +81,7 @@ public:
 	virtual unsigned short GetCurrentBytesPerSample () = 0;
 	static unsigned short GetBytesPerSample (SAAPARAM uParam);
 
-	virtual void GenerateMany (BYTE * pBuffer, unsigned long nSamples) = 0;
+	virtual void GenerateMany (BYTE * pBuffer, unsigned long nSamples, DivDispatchOscBuffer** oscBuf) = 0;
 
 	virtual void SetClockRate(unsigned int nClockRate) = 0;
 	virtual void SetSampleRate(unsigned int nSampleRate) = 0;
diff --git a/extern/SAASound/src/types.h b/extern/SAASound/src/types.h
index 4eb62f485..8cce21247 100755
--- a/extern/SAASound/src/types.h
+++ b/extern/SAASound/src/types.h
@@ -12,8 +12,10 @@
      defined(__arm__) || \
     (defined(__mips__) && defined(__MIPSEL__))
 #else
+#ifndef __BIG_ENDIAN
 #define __BIG_ENDIAN
 #endif
+#endif
 
 
 #ifndef NULL
diff --git a/src/engine/platform/lynx.cpp b/src/engine/platform/lynx.cpp
index 18a9b72fa..095710612 100644
--- a/src/engine/platform/lynx.cpp
+++ b/src/engine/platform/lynx.cpp
@@ -142,7 +142,7 @@ const char* DivPlatformLynx::getEffectName(unsigned char effect) {
 }
 
 void DivPlatformLynx::acquire(short* bufL, short* bufR, size_t start, size_t len) {
-  mikey->sampleAudio( bufL + start, bufR + start, len );
+  mikey->sampleAudio( bufL + start, bufR + start, len, oscBuf );
 }
 
 void DivPlatformLynx::tick(bool sysTick) {
@@ -342,6 +342,10 @@ void* DivPlatformLynx::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformLynx::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformLynx::getRegisterPool()
 {
   return const_cast<unsigned char*>( mikey->getRegisterPool() );
@@ -398,16 +402,24 @@ int DivPlatformLynx::init(DivEngine* p, int channels, int sugRate, unsigned int
 
   for (int i=0; i<4; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
 
   chipClock = 16000000;
   rate = chipClock/128;
 
+  for (int i=0; i<4; i++) {
+    oscBuf[i]->rate=rate;
+  }
+
   reset();
   return 4;
 }
 
 void DivPlatformLynx::quit() {
+  for (int i=0; i<4; i++) {
+    delete oscBuf[i];
+  }
   mikey.reset();
 }
 
diff --git a/src/engine/platform/lynx.h b/src/engine/platform/lynx.h
index 5200fbd9c..fab8b0f82 100644
--- a/src/engine/platform/lynx.h
+++ b/src/engine/platform/lynx.h
@@ -74,6 +74,7 @@ class DivPlatformLynx: public DivDispatch {
       outVol(127) {}
   };
   Channel chan[4];
+  DivDispatchOscBuffer* oscBuf[4];
   bool isMuted[4];
   std::unique_ptr<Lynx::Mikey> mikey;
   friend void putDispatchChan(void*,int,int);
@@ -81,6 +82,7 @@ class DivPlatformLynx: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/mmc5.cpp b/src/engine/platform/mmc5.cpp
index e2aa915ed..66bead9da 100644
--- a/src/engine/platform/mmc5.cpp
+++ b/src/engine/platform/mmc5.cpp
@@ -59,7 +59,7 @@ void DivPlatformMMC5::acquire(short* bufL, short* bufR, size_t start, size_t len
       if (dacPeriod>=rate) {
         DivSample* s=parent->getSample(dacSample);
         if (s->samples>0) {
-          if (!isMuted[4]) {
+          if (!isMuted[2]) {
             rWrite(0x5011,((unsigned char)s->data8[dacPos]+0x80));
           }
           if (++dacPos>=s->samples) {
@@ -92,6 +92,13 @@ 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;
+
+    if (++writeOscBuf>=32) {
+      writeOscBuf=0;
+      oscBuf[0]->data[oscBuf[0]->needle++]=isMuted[0]?0:((mmc5->S3.output*10)<<7);
+      oscBuf[1]->data[oscBuf[1]->needle++]=isMuted[1]?0:((mmc5->S4.output*10)<<7);
+      oscBuf[2]->data[oscBuf[2]->needle++]=isMuted[2]?0:((mmc5->pcm.output*2)<<6);
+    }
   }
 }
 
@@ -164,18 +171,18 @@ void DivPlatformMMC5::tick(bool sysTick) {
   }
 
   // PCM
-  if (chan[4].freqChanged) {
-    chan[4].freq=parent->calcFreq(chan[4].baseFreq,chan[4].pitch,false);
-    if (chan[4].furnaceDac) {
+  if (chan[2].freqChanged) {
+    chan[2].freq=parent->calcFreq(chan[2].baseFreq,chan[2].pitch,false);
+    if (chan[2].furnaceDac) {
       double off=1.0;
       if (dacSample>=0 && dacSample<parent->song.sampleLen) {
         DivSample* s=parent->getSample(dacSample);
         off=(double)s->centerRate/8363.0;
       }
-      dacRate=MIN(chan[4].freq*off,32000);
+      dacRate=MIN(chan[2].freq*off,32000);
       if (dumpWrites) addWrite(0xffff0001,dacRate);
     }
-    chan[4].freqChanged=false;
+    chan[2].freqChanged=false;
   }
 }
 
@@ -342,6 +349,10 @@ void* DivPlatformMMC5::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformMMC5::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformMMC5::getRegisterPool() {
   return regPool;
 }
@@ -389,6 +400,9 @@ void DivPlatformMMC5::setFlags(unsigned int flags) {
     rate=COLOR_NTSC/2.0;
   }
   chipClock=rate;
+  for (int i=0; i<3; i++) {
+    oscBuf[i]->rate=rate/32;
+  }
 }
 
 void DivPlatformMMC5::notifyInsDeletion(void* ins) {
@@ -410,9 +424,11 @@ int DivPlatformMMC5::init(DivEngine* p, int channels, int sugRate, unsigned int
   apuType=flags;
   dumpWrites=false;
   skipRegisterWrites=false;
+  writeOscBuf=0;
   mmc5=new struct _mmc5;
   for (int i=0; i<3; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
     //mmc5->muted[i]=false; // TODO
   }
   setFlags(flags);
@@ -423,6 +439,9 @@ int DivPlatformMMC5::init(DivEngine* p, int channels, int sugRate, unsigned int
 }
 
 void DivPlatformMMC5::quit() {
+  for (int i=0; i<3; i++) {
+    delete oscBuf[i];
+  }
   delete mmc5;
 }
 
diff --git a/src/engine/platform/mmc5.h b/src/engine/platform/mmc5.h
index bf7eeaad5..2213b995f 100644
--- a/src/engine/platform/mmc5.h
+++ b/src/engine/platform/mmc5.h
@@ -57,12 +57,14 @@ class DivPlatformMMC5: public DivDispatch {
       wave(-1) {}
   };
   Channel chan[5];
+  DivDispatchOscBuffer* oscBuf[3];
   bool isMuted[5];
   int dacPeriod, dacRate;
   unsigned int dacPos;
   int dacSample;
   unsigned char sampleBank;
   unsigned char apuType;
+  unsigned char writeOscBuf;
   struct _mmc5* mmc5;
   unsigned char regPool[128];
 
@@ -72,6 +74,7 @@ class DivPlatformMMC5: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/n163.cpp b/src/engine/platform/n163.cpp
index 5d3c9c201..ef368203b 100644
--- a/src/engine/platform/n163.cpp
+++ b/src/engine/platform/n163.cpp
@@ -161,6 +161,10 @@ void DivPlatformN163::acquire(short* bufL, short* bufR, size_t start, size_t len
     if (out<-32768) out=-32768;
     bufL[i]=bufR[i]=out;
 
+    if (n163.voice_cycle()==0x78) for (int i=0; i<8; i++) {
+      oscBuf[i]->data[oscBuf[i]->needle++]=n163.chan_out(i)<<7;
+    }
+
     // command queue
     while (!writes.empty()) {
       QueuedWrite w=writes.front();
@@ -619,6 +623,10 @@ void* DivPlatformN163::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformN163::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformN163::getRegisterPool() {
   for (int i=0; i<128; i++) {
     regPool[i]=n163.reg(i);
@@ -678,6 +686,9 @@ void DivPlatformN163::setFlags(unsigned int flags) {
   rate/=15;
   n163.set_multiplex(multiplex);
   rWrite(0x7f,initChanMax<<4);
+  for (int i=0; i<8; i++) {
+    oscBuf[i]->rate=rate/(initChanMax+1);
+  }
 }
 
 int DivPlatformN163::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
@@ -686,6 +697,7 @@ int DivPlatformN163::init(DivEngine* p, int channels, int sugRate, unsigned int
   skipRegisterWrites=false;
   for (int i=0; i<8; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
   setFlags(flags);
 
@@ -695,6 +707,9 @@ int DivPlatformN163::init(DivEngine* p, int channels, int sugRate, unsigned int
 }
 
 void DivPlatformN163::quit() {
+  for (int i=0; i<8; i++) {
+    delete oscBuf[i];
+  }
 }
 
 DivPlatformN163::~DivPlatformN163() {
diff --git a/src/engine/platform/n163.h b/src/engine/platform/n163.h
index d01030848..6ecb1e0c5 100644
--- a/src/engine/platform/n163.h
+++ b/src/engine/platform/n163.h
@@ -70,6 +70,7 @@ class DivPlatformN163: public DivDispatch {
       resVol(15) {}
   };
   Channel chan[8];
+  DivDispatchOscBuffer* oscBuf[8];
   bool isMuted[8];
   struct QueuedWrite {
       unsigned char addr;
@@ -94,6 +95,7 @@ class DivPlatformN163: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/pce.cpp b/src/engine/platform/pce.cpp
index a56732bef..c28b81db7 100644
--- a/src/engine/platform/pce.cpp
+++ b/src/engine/platform/pce.cpp
@@ -116,6 +116,10 @@ void DivPlatformPCE::acquire(short* bufL, short* bufR, size_t start, size_t len)
     pce->Update(24);
     pce->ResetTS(0);
 
+    for (int i=0; i<6; i++) {
+      oscBuf[i]->data[oscBuf[i]->needle++]=(pce->channel[i].blip_prev_samp[0]+pce->channel[i].blip_prev_samp[1])<<1;
+    }
+
     tempL[0]=(tempL[0]>>1)+(tempL[0]>>2);
     tempR[0]=(tempR[0]>>1)+(tempR[0]>>2);
 
@@ -469,6 +473,10 @@ void* DivPlatformPCE::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformPCE::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformPCE::getRegisterPool() {
   return regPool;
 }
@@ -541,6 +549,9 @@ void DivPlatformPCE::setFlags(unsigned int flags) {
     chipClock=COLOR_NTSC;
   }
   rate=chipClock/12;
+  for (int i=0; i<6; i++) {
+    oscBuf[i]->rate=rate;
+  }
 }
 
 void DivPlatformPCE::poke(unsigned int addr, unsigned short val) {
@@ -557,6 +568,7 @@ int DivPlatformPCE::init(DivEngine* p, int channels, int sugRate, unsigned int f
   skipRegisterWrites=false;
   for (int i=0; i<6; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
   setFlags(flags);
   pce=new PCE_PSG(tempL,tempR,PCE_PSG::REVISION_HUC6280A);
@@ -565,6 +577,9 @@ int DivPlatformPCE::init(DivEngine* p, int channels, int sugRate, unsigned int f
 }
 
 void DivPlatformPCE::quit() {
+  for (int i=0; i<6; i++) {
+    delete oscBuf[i];
+  }
   delete pce;
 }
 
diff --git a/src/engine/platform/pce.h b/src/engine/platform/pce.h
index b1b140383..58fa6600a 100644
--- a/src/engine/platform/pce.h
+++ b/src/engine/platform/pce.h
@@ -67,6 +67,7 @@ class DivPlatformPCE: public DivDispatch {
       wave(-1) {}
   };
   Channel chan[6];
+  DivDispatchOscBuffer* oscBuf[6];
   bool isMuted[6];
   struct QueuedWrite {
       unsigned char addr;
@@ -88,6 +89,7 @@ class DivPlatformPCE: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/pcspkr.cpp b/src/engine/platform/pcspkr.cpp
index 5da1923cf..434ab10b4 100644
--- a/src/engine/platform/pcspkr.cpp
+++ b/src/engine/platform/pcspkr.cpp
@@ -50,6 +50,7 @@ const float cut=0.05;
 const float reso=0.06;
 
 void DivPlatformPCSpeaker::acquire_unfilt(short* bufL, short* bufR, size_t start, size_t len) {
+  int out=0;
   for (size_t i=start; i<start+len; i++) {
     if (on) {
       pos-=PCSPKR_DIVIDER;
@@ -61,9 +62,12 @@ void DivPlatformPCSpeaker::acquire_unfilt(short* bufL, short* bufR, size_t start
           pos+=freq;
         }
       }
-      bufL[i]=(pos>(freq>>1) && !isMuted[0])?32767:0;
+      out=(pos>(freq>>1) && !isMuted[0])?32767:0;
+      bufL[i]=out;
+      oscBuf->data[oscBuf->needle++]=out;
     } else {
       bufL[i]=0;
+      oscBuf->data[oscBuf->needle++]=0;
     }
   }
 }
@@ -87,8 +91,10 @@ void DivPlatformPCSpeaker::acquire_cone(short* bufL, short* bufR, size_t start,
       if (out>1.0) out=1.0;
       if (out<-1.0) out=-1.0;
       bufL[i]=out*32767;
+      oscBuf->data[oscBuf->needle++]=out*32767;
     } else {
       bufL[i]=0;
+      oscBuf->data[oscBuf->needle++]=0;
     }
   }
 }
@@ -112,8 +118,10 @@ void DivPlatformPCSpeaker::acquire_piezo(short* bufL, short* bufR, size_t start,
       if (out>1.0) out=1.0;
       if (out<-1.0) out=-1.0;
       bufL[i]=out*32767;
+      oscBuf->data[oscBuf->needle++]=out*32767;
     } else {
       bufL[i]=0;
+      oscBuf->data[oscBuf->needle++]=0;
     }
   }
 }
@@ -140,12 +148,28 @@ void DivPlatformPCSpeaker::beepFreq(int freq) {
 }
 
 void DivPlatformPCSpeaker::acquire_real(short* bufL, short* bufR, size_t start, size_t len) {
+  int out=0;
   if (lastOn!=on || lastFreq!=freq) {
     lastOn=on;
     lastFreq=freq;
     beepFreq((on && !isMuted[0])?freq:0);
   }
   for (size_t i=start; i<start+len; i++) {
+    if (on) {
+      pos-=PCSPKR_DIVIDER;
+      if (pos>freq) pos=freq;
+      while (pos<0) {
+        if (freq<1) {
+          pos=1;
+        } else {
+          pos+=freq;
+        }
+      }
+      out=(pos>(freq>>1) && !isMuted[0])?32767:0;
+      oscBuf->data[oscBuf->needle++]=out;
+    } else {
+      oscBuf->data[oscBuf->needle++]=0;
+    }
     bufL[i]=0;
   }
 }
@@ -321,6 +345,10 @@ void* DivPlatformPCSpeaker::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformPCSpeaker::getOscBuffer(int ch) {
+  return oscBuf;
+}
+
 unsigned char* DivPlatformPCSpeaker::getRegisterPool() {
   if (on) {
     regPool[0]=freq;
@@ -379,6 +407,7 @@ void DivPlatformPCSpeaker::setFlags(unsigned int flags) {
   chipClock=COLOR_NTSC/3.0;
   rate=chipClock/PCSPKR_DIVIDER;
   speakerType=flags&3;
+  oscBuf->rate=rate;
 }
 
 void DivPlatformPCSpeaker::notifyInsDeletion(void* ins) {
@@ -407,6 +436,7 @@ int DivPlatformPCSpeaker::init(DivEngine* p, int channels, int sugRate, unsigned
   for (int i=0; i<1; i++) {
     isMuted[i]=false;
   }
+  oscBuf=new DivDispatchOscBuffer;
   setFlags(flags);
 
   reset();
@@ -420,6 +450,7 @@ void DivPlatformPCSpeaker::quit() {
 #ifdef __linux__
   if (beepFD>=0) close(beepFD);
 #endif
+  delete oscBuf;
 }
 
 DivPlatformPCSpeaker::~DivPlatformPCSpeaker() {
diff --git a/src/engine/platform/pcspkr.h b/src/engine/platform/pcspkr.h
index d2c01454e..155416bb8 100644
--- a/src/engine/platform/pcspkr.h
+++ b/src/engine/platform/pcspkr.h
@@ -56,6 +56,7 @@ class DivPlatformPCSpeaker: public DivDispatch {
       wave(-1) {}
   };
   Channel chan[1];
+  DivDispatchOscBuffer* oscBuf;
   bool isMuted[1];
   bool on, flip, lastOn;
   int pos, speakerType, beepFD;
@@ -78,6 +79,7 @@ class DivPlatformPCSpeaker: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/pet.cpp b/src/engine/platform/pet.cpp
index 5a7efe1f9..8ddee9e86 100644
--- a/src/engine/platform/pet.cpp
+++ b/src/engine/platform/pet.cpp
@@ -64,12 +64,14 @@ void DivPlatformPET::acquire(short* bufL, short* bufR, size_t start, size_t len)
       }
       bufL[h]=chan.out;
       bufR[h]=chan.out;
+      oscBuf->data[oscBuf->needle++]=chan.out;
     }
   } else {
     chan.out=0;
     for (size_t h=start; h<start+len; h++) {
       bufL[h]=0;
       bufR[h]=0;
+      oscBuf->data[oscBuf->needle++]=0;
     }
   }
 }
@@ -244,6 +246,10 @@ void* DivPlatformPET::getChanState(int ch) {
   return &chan;
 }
 
+DivDispatchOscBuffer* DivPlatformPET::getOscBuffer(int ch) {
+  return oscBuf;
+}
+
 unsigned char* DivPlatformPET::getRegisterPool() {
   return regPool;
 }
@@ -281,9 +287,15 @@ int DivPlatformPET::init(DivEngine* p, int channels, int sugRate, unsigned int f
   chipClock=1000000;
   rate=chipClock/SAMP_DIVIDER; // = 250000kHz
   isMuted=false;
+  oscBuf=new DivDispatchOscBuffer;
+  oscBuf->rate=rate;
   reset();
   return 1;
 }
 
+void DivPlatformPET::quit() {
+  delete oscBuf;
+}
+
 DivPlatformPET::~DivPlatformPET() {
 }
diff --git a/src/engine/platform/pet.h b/src/engine/platform/pet.h
index c26ef5392..1e5e49ce5 100644
--- a/src/engine/platform/pet.h
+++ b/src/engine/platform/pet.h
@@ -57,6 +57,7 @@ class DivPlatformPET: public DivDispatch {
       out(0) {}
   };
   Channel chan;
+  DivDispatchOscBuffer* oscBuf;
   bool isMuted;
 
   unsigned char regPool[16];
@@ -65,6 +66,7 @@ class DivPlatformPET: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
@@ -78,6 +80,7 @@ class DivPlatformPET: public DivDispatch {
     const char** getRegisterSheet();
     const char* getEffectName(unsigned char effect);
     int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    void quit();
     ~DivPlatformPET();
   private:
     void writeOutVol();
diff --git a/src/engine/platform/qsound.cpp b/src/engine/platform/qsound.cpp
index f3197f6b4..c5d003be5 100644
--- a/src/engine/platform/qsound.cpp
+++ b/src/engine/platform/qsound.cpp
@@ -274,6 +274,13 @@ void DivPlatformQSound::acquire(short* bufL, short* bufR, size_t start, size_t l
     qsound_update(&chip);
     bufL[h]=chip.out[0];
     bufR[h]=chip.out[1];
+
+    for (int i=0; i<19; i++) {
+      int data=chip.voice_output[i]<<2;
+      if (data<-32768) data=-32768;
+      if (data>32767) data=32767;
+      oscBuf[i]->data[oscBuf[i]->needle++]=data;
+    }
   }
 }
 
@@ -546,6 +553,10 @@ void* DivPlatformQSound::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformQSound::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 void DivPlatformQSound::reset() {
   for (int i=0; i<16; i++) {
     chan[i]=DivPlatformQSound::Channel();
@@ -632,9 +643,10 @@ int DivPlatformQSound::init(DivEngine* p, int channels, int sugRate, unsigned in
   dumpWrites=false;
   skipRegisterWrites=false;
 
-  //for (int i=0; i<16; i++) {
-  //  isMuted[i]=false;
-  //}
+  for (int i=0; i<19; i++) {
+    oscBuf[i]=new DivDispatchOscBuffer;
+    //isMuted[i]=false;
+  }
   setFlags(flags);
 
   chipClock=60000000;
@@ -642,8 +654,15 @@ int DivPlatformQSound::init(DivEngine* p, int channels, int sugRate, unsigned in
   chip.rom_data = (unsigned char*)&chip.rom_mask;
   chip.rom_mask = 0;
   reset();
+
+  for (int i=0; i<19; i++) {
+    oscBuf[i]->rate=rate;
+  }
   return 19;
 }
 
 void DivPlatformQSound::quit() {
+  for (int i=0; i<19; i++) {
+    delete oscBuf[i];
+  }
 }
diff --git a/src/engine/platform/qsound.h b/src/engine/platform/qsound.h
index 6eb178d08..0fbce3b32 100644
--- a/src/engine/platform/qsound.h
+++ b/src/engine/platform/qsound.h
@@ -63,6 +63,7 @@ class DivPlatformQSound: public DivDispatch {
       outVol(255) {}
   };
   Channel chan[19];
+  DivDispatchOscBuffer* oscBuf[19];
   int echoDelay;
   int echoFeedback;
 
@@ -75,6 +76,7 @@ class DivPlatformQSound: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     int getRegisterPoolDepth();
diff --git a/src/engine/platform/saa.cpp b/src/engine/platform/saa.cpp
index a083355a6..3ecf0a3ed 100644
--- a/src/engine/platform/saa.cpp
+++ b/src/engine/platform/saa.cpp
@@ -86,7 +86,7 @@ void DivPlatformSAA1099::acquire_mame(short* bufL, short* bufR, size_t start, si
     regPool[w.addr&0x1f]=w.val;
     writes.pop();
   }
-  saa.sound_stream_update(saaBuf,len);
+  saa.sound_stream_update(saaBuf,len,oscBuf);
   for (size_t i=0; i<len; i++) {
     bufL[i+start]=saaBuf[0][i];
     bufR[i+start]=saaBuf[1][i];
@@ -107,7 +107,7 @@ void DivPlatformSAA1099::acquire_saaSound(short* bufL, short* bufR, size_t start
     regPool[w.addr&0x1f]=w.val;
     writes.pop();
   }
-  saa_saaSound->GenerateMany((unsigned char*)saaBuf[0],len);
+  saa_saaSound->GenerateMany((unsigned char*)saaBuf[0],len,oscBuf);
   for (size_t i=0; i<len; i++) {
     bufL[i+start]=saaBuf[0][i<<1];
     bufR[i+start]=saaBuf[0][1+(i<<1)];
@@ -398,6 +398,10 @@ void* DivPlatformSAA1099::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformSAA1099::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformSAA1099::getRegisterPool() {
   return regPool;
 }
@@ -485,6 +489,10 @@ void DivPlatformSAA1099::setFlags(unsigned int flags) {
   }
   rate=chipClock/32;
 
+  for (int i=0; i<6; i++) {
+    oscBuf[i]->rate=rate;
+  }
+
   switch (core) {
     case DIV_SAA_CORE_MAME:
       break;
@@ -516,6 +524,7 @@ int DivPlatformSAA1099::init(DivEngine* p, int channels, int sugRate, unsigned i
   saa_saaSound=NULL;
   for (int i=0; i<6; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
   if (core==DIV_SAA_CORE_SAASOUND) {
     saa_saaSound=CreateCSAASound();
@@ -530,6 +539,9 @@ int DivPlatformSAA1099::init(DivEngine* p, int channels, int sugRate, unsigned i
 }
 
 void DivPlatformSAA1099::quit() {
+  for (int i=0; i<6; i++) {
+    delete oscBuf[i];
+  }
   if (saa_saaSound!=NULL) {
     DestroyCSAASound(saa_saaSound);
     saa_saaSound=NULL;
diff --git a/src/engine/platform/saa.h b/src/engine/platform/saa.h
index 24108da79..70edaa249 100644
--- a/src/engine/platform/saa.h
+++ b/src/engine/platform/saa.h
@@ -49,6 +49,7 @@ class DivPlatformSAA1099: public DivDispatch {
       Channel(): freqH(0), freqL(0), freq(0), baseFreq(0), pitch(0), pitch2(0), note(0), ins(-1), psgMode(1), active(false), insChanged(true), freqChanged(false), keyOn(false), keyOff(false), portaPause(false), inPorta(false), vol(0), outVol(15), pan(255) {}
     };
     Channel chan[6];
+    DivDispatchOscBuffer* oscBuf[6];
     bool isMuted[6];
     struct QueuedWrite {
       unsigned short addr;
@@ -90,6 +91,7 @@ class DivPlatformSAA1099: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/sound/lynx/Mikey.cpp b/src/engine/platform/sound/lynx/Mikey.cpp
index 5d12bbb86..270e21bdf 100644
--- a/src/engine/platform/sound/lynx/Mikey.cpp
+++ b/src/engine/platform/sound/lynx/Mikey.cpp
@@ -458,23 +458,31 @@ public:
     return mAudioChannels[timer].fireAction( tick );
   }
 
-  AudioSample sampleAudio() const
+  AudioSample sampleAudio( DivDispatchOscBuffer** oscb ) const
   {
     int left{};
     int right{};
 
     for ( size_t i = 0; i < 4; ++i )
     {
+      int oscbWrite = 0;
+
       if ( ( mStereo & ( (uint8_t)0x01 << i ) ) == 0 )
       {
         const int attenuation = ( mPan & ( (uint8_t)0x01 << i ) ) != 0 ? mAttenuationLeft[i] : 0x3c;
         left += mAudioChannels[i].getOutput() * attenuation;
+        oscbWrite += mAudioChannels[i].getOutput() * attenuation;
       }
 
       if ( ( mStereo & ( (uint8_t)0x10 << i ) ) == 0 )
       {
         const int attenuation = ( mPan & ( (uint8_t)0x01 << i ) ) != 0 ? mAttenuationRight[i] : 0x3c;
         right += mAudioChannels[i].getOutput() * attenuation;
+        oscbWrite += mAudioChannels[i].getOutput() * attenuation;
+      }
+
+      if (oscb!=NULL) {
+        oscb[i]->data[oscb[i]->needle++]=oscbWrite;
       }
     }
 
@@ -534,7 +542,7 @@ void Mikey::enqueueSampling()
   mQueue->push( ( mNextTick & ~15 ) | 4 );
 }
 
-void Mikey::sampleAudio( int16_t* bufL, int16_t* bufR, size_t size )
+void Mikey::sampleAudio( int16_t* bufL, int16_t* bufR, size_t size, DivDispatchOscBuffer** oscb )
 {
   size_t i = 0;
   while ( i < size )
@@ -549,7 +557,7 @@ void Mikey::sampleAudio( int16_t* bufL, int16_t* bufR, size_t size )
     }
     else
     {
-      auto sample = mMikey->sampleAudio();
+      auto sample = mMikey->sampleAudio( oscb );
       bufL[i] = sample.left;
       bufR[i] = sample.right;
       i += 1;
diff --git a/src/engine/platform/sound/lynx/Mikey.hpp b/src/engine/platform/sound/lynx/Mikey.hpp
index 20b8b0868..9d0f6884e 100644
--- a/src/engine/platform/sound/lynx/Mikey.hpp
+++ b/src/engine/platform/sound/lynx/Mikey.hpp
@@ -3,6 +3,9 @@
 #include <cstdint>
 #include <memory>
 
+// can you forgive me
+#include "../../../dispatch.h"
+
 namespace Lynx
 {
 
@@ -18,7 +21,7 @@ public:
   ~Mikey();
 
   void write( uint8_t address, uint8_t value );
-  void sampleAudio( int16_t* bufL, int16_t* bufR, size_t size );
+  void sampleAudio( int16_t* bufL, int16_t* bufR, size_t size, DivDispatchOscBuffer** oscb = NULL );
 
   uint8_t const* getRegisterPool();
 
diff --git a/src/engine/platform/sound/n163/n163.cpp b/src/engine/platform/sound/n163/n163.cpp
index b18f146ba..20853963e 100644
--- a/src/engine/platform/sound/n163/n163.cpp
+++ b/src/engine/platform/sound/n163/n163.cpp
@@ -98,6 +98,8 @@ void n163_core::tick()
 	m_ram[m_voice_cycle + 3] = bitfield(accum,  8, 8);
 	m_ram[m_voice_cycle + 5] = bitfield(accum, 16, 8);
 
+  const u8 prev_voice_cycle = m_voice_cycle;
+
 	// update voice cycle
 	bool flush = m_multiplex ? true : false;
 	m_voice_cycle -= 0x8;
@@ -109,7 +111,9 @@ void n163_core::tick()
 	}
 
 	// output 4 bit waveform and volume, multiplexed
-	m_acc += wave * volume;
+  const u8 chan_index = ((0x78-prev_voice_cycle)>>3)&7;
+  m_ch_out[chan_index]=wave * volume;
+	m_acc += m_ch_out[chan_index];
 	if (flush)
 	{
 		m_out = m_acc / (m_multiplex ? 1 : (bitfield(m_ram[0x7f], 4, 3) + 1));
@@ -127,6 +131,7 @@ void n163_core::reset()
 	m_addr_latch.reset();
 	m_out = 0;
 	m_acc = 0;
+  std::fill(std::begin(m_ch_out), std::end(m_ch_out), 0);
 }
 
 // accessor
diff --git a/src/engine/platform/sound/n163/n163.hpp b/src/engine/platform/sound/n163/n163.hpp
index a31827572..aa059206b 100644
--- a/src/engine/platform/sound/n163/n163.hpp
+++ b/src/engine/platform/sound/n163/n163.hpp
@@ -46,6 +46,12 @@ public:
 	// sound output pin
 	s16 out() { return m_out; }
 
+  // get channel output
+  s16 chan_out(u8 ch) { return m_ch_out[ch]; }
+
+  // get voice cycle
+  u8 voice_cycle() { return m_voice_cycle; }
+
 	// register pool
 	u8 reg(u8 addr) { return m_ram[addr & 0x7f]; }
 	void set_multiplex(bool multiplex = true) { m_multiplex = multiplex; }
@@ -74,6 +80,7 @@ private:
 	u8 m_voice_cycle = 0x78; // Voice cycle for processing
 	addr_latch_t m_addr_latch; // address latch
 	s16 m_out = 0; // output
+  s16 m_ch_out[8] = {0}; // per channel output
 	// demultiplex related
 	bool m_multiplex = true; // multiplex flag, but less noisy = inaccurate!
 	s16 m_acc = 0; // accumulated output
diff --git a/src/engine/platform/sound/pce_psg.cpp b/src/engine/platform/sound/pce_psg.cpp
index f9c1ee099..0fa9993bf 100644
--- a/src/engine/platform/sound/pce_psg.cpp
+++ b/src/engine/platform/sound/pce_psg.cpp
@@ -96,10 +96,11 @@ inline void PCE_PSG::UpdateOutputSub(const int32_t timestamp, psg_channel *ch, c
  HRBufs[1][l + 4] += delta[1] * c[4];
  HRBufs[1][l + 5] += delta[1] * c[5];
  HRBufs[1][l + 6] += delta[1] * c[6];
+ */
 
  ch->blip_prev_samp[0] = samp0;
  ch->blip_prev_samp[1] = samp1;
- */
+
 }
 
 void PCE_PSG::UpdateOutput_Norm(const int32_t timestamp, psg_channel *ch)
diff --git a/src/engine/platform/sound/pce_psg.h b/src/engine/platform/sound/pce_psg.h
index 595494036..08f7f88ce 100644
--- a/src/engine/platform/sound/pce_psg.h
+++ b/src/engine/platform/sound/pce_psg.h
@@ -147,6 +147,8 @@ class PCE_PSG
 
   void PeekWave(const unsigned int ch, uint32_t Address, uint32_t Length, uint8_t *Buffer);
   void PokeWave(const unsigned int ch, uint32_t Address, uint32_t Length, const uint8_t *Buffer);
+  
+  psg_channel channel[6];
 
   private:
 
@@ -178,8 +180,6 @@ class PCE_PSG
   int32_t vol_update_vllatch;
   bool vol_pending;
 
-  psg_channel channel[6];
-
   int32_t lastts;
   int revision;
 
diff --git a/src/engine/platform/sound/saa1099.cpp b/src/engine/platform/sound/saa1099.cpp
index 670afb97f..918ade54c 100644
--- a/src/engine/platform/sound/saa1099.cpp
+++ b/src/engine/platform/sound/saa1099.cpp
@@ -164,7 +164,7 @@ void saa1099_device::device_start()
 //  sound_stream_update - handle a stream update
 //-------------------------------------------------
 
-void saa1099_device::sound_stream_update(short** outputs, int len)
+void saa1099_device::sound_stream_update(short** outputs, int len, DivDispatchOscBuffer** oscBuf)
 {
 	int j, ch;
 	/* if the channels are disabled we're done */
@@ -225,9 +225,14 @@ void saa1099_device::sound_stream_update(short** outputs, int len)
 			}
 			if (level)
 			{
-				output_l += m_channels[ch].amplitude[ LEFT] * m_channels[ch].envelope[ LEFT] / 16;
-				output_r += m_channels[ch].amplitude[RIGHT] * m_channels[ch].envelope[RIGHT] / 16;
-			}
+				int this_output_l = m_channels[ch].amplitude[ LEFT] * m_channels[ch].envelope[ LEFT] / 16;
+				int this_output_r = m_channels[ch].amplitude[RIGHT] * m_channels[ch].envelope[RIGHT] / 16;
+        output_l+=this_output_l;
+        output_r+=this_output_r;
+        oscBuf[ch]->data[oscBuf[ch]->needle++]=(this_output_l+this_output_r)<<1;
+			} else if (oscBuf!=NULL) {
+        oscBuf[ch]->data[oscBuf[ch]->needle++]=0;
+      }
 		}
 
 		for (ch = 0; ch < 2; ch++)
diff --git a/src/engine/platform/sound/saa1099.h b/src/engine/platform/sound/saa1099.h
index 8ebad8a30..8b7cead25 100644
--- a/src/engine/platform/sound/saa1099.h
+++ b/src/engine/platform/sound/saa1099.h
@@ -7,6 +7,8 @@
 #ifndef MAME_SOUND_SAA1099_H
 #define MAME_SOUND_SAA1099_H
 
+#include "../../dispatch.h"
+
 //**************************************************************************
 //  TYPE DEFINITIONS
 //**************************************************************************
@@ -28,7 +30,7 @@ public:
 	void device_clock_changed();
 
 	// sound stream update overrides
-	void sound_stream_update(short** outputs, int len);
+	void sound_stream_update(short** outputs, int len, DivDispatchOscBuffer** oscBuf=NULL);
 
 private:
 	struct saa1099_channel
diff --git a/src/engine/platform/sound/swan.h b/src/engine/platform/sound/swan.h
index a1d01fa54..bd421a74c 100644
--- a/src/engine/platform/sound/swan.h
+++ b/src/engine/platform/sound/swan.h
@@ -41,6 +41,8 @@ public:
 
  void SoundUpdate(uint32_t);
  void RAMWrite(uint32_t, uint8_t);
+ 
+ int32_t sample_cache[4][2];
 
 private:
  // Blip_Synth<blip_good_quality, 4096> WaveSynth;
@@ -61,8 +63,6 @@ private:
  uint8_t sweep_counter;
  uint8_t SampleRAMPos;
 
- int32_t sample_cache[4][2];
-
  int32_t last_v_val;
 
  uint8_t HyperVoice;
diff --git a/src/engine/platform/sound/vera_psg.c b/src/engine/platform/sound/vera_psg.c
index afdf69cec..19f15d4eb 100644
--- a/src/engine/platform/sound/vera_psg.c
+++ b/src/engine/platform/sound/vera_psg.c
@@ -86,6 +86,12 @@ render(struct VERA_PSG* psg, int16_t *left, int16_t *right)
 		if (ch->right) {
 			r += val;
 		}
+
+    if (ch->left || ch->right) {
+      ch->lastOut=val;
+    } else {
+      ch->lastOut=0;
+    }
 	}
 
 	*left  = l;
diff --git a/src/engine/platform/sound/vera_psg.h b/src/engine/platform/sound/vera_psg.h
index 7a6a7f01d..6a3f6828b 100644
--- a/src/engine/platform/sound/vera_psg.h
+++ b/src/engine/platform/sound/vera_psg.h
@@ -15,6 +15,7 @@ struct VERAChannel {
 	uint8_t  waveform;
 
 	unsigned phase;
+  int lastOut;
 	uint8_t  noiseval;
 };
 
diff --git a/src/engine/platform/sound/vrcvi/vrcvi.cpp b/src/engine/platform/sound/vrcvi/vrcvi.cpp
index 19152ed74..bca3ecda3 100644
--- a/src/engine/platform/sound/vrcvi/vrcvi.cpp
+++ b/src/engine/platform/sound/vrcvi/vrcvi.cpp
@@ -88,13 +88,23 @@ void vrcvi_core::tick()
 	if (!m_control.m_halt) // Halt flag
 	{
 		// tick per each clock
+    int elemIndex=0;
 		for (auto & elem : m_pulse)
 		{
-			if (elem.tick())
+			if (elem.tick()) {
 				m_out += elem.m_control.m_volume; // add 4 bit pulse output
+        m_ch_out[elemIndex]=elem.m_control.m_volume;
+      } else {
+        m_ch_out[elemIndex]=0;
+      }
+      elemIndex++;
 		}
-		if (m_sawtooth.tick())
+		if (m_sawtooth.tick()) {
 			m_out += bitfield(m_sawtooth.m_accum, 3, 5); // add 5 bit sawtooth output
+      m_ch_out[2]=bitfield(m_sawtooth.m_accum, 3, 5);
+    } else {
+      m_ch_out[2]=0;
+    }
 	}
 	if (m_timer.tick())
 		m_timer.counter_tick();
@@ -109,6 +119,7 @@ void vrcvi_core::reset()
 	m_timer.reset();
 	m_control.reset();
 	m_out = 0;
+  std::fill(std::begin(m_ch_out),std::end(m_ch_out),0);
 }
 
 bool vrcvi_core::alu_t::tick()
diff --git a/src/engine/platform/sound/vrcvi/vrcvi.hpp b/src/engine/platform/sound/vrcvi/vrcvi.hpp
index 40b4245e3..d88ba7cf9 100644
--- a/src/engine/platform/sound/vrcvi/vrcvi.hpp
+++ b/src/engine/platform/sound/vrcvi/vrcvi.hpp
@@ -62,6 +62,8 @@ public:
 
 	// 6 bit output
 	s8 out() { return m_out; }
+  // channel output
+  s16 chan_out(u8 ch) { return m_ch_out[ch]; }
 private:
 	// Common ALU for sound channels
 	struct alu_t
@@ -233,6 +235,7 @@ private:
 	vrcvi_intf &m_intf;
 
 	s8 m_out = 0; // 6 bit output
+  s8 m_ch_out[3] = {0}; // per-channel output
 };
 
 #endif
diff --git a/src/engine/platform/sound/x1_010/x1_010.hpp b/src/engine/platform/sound/x1_010/x1_010.hpp
index e8f5e3e40..f208611da 100644
--- a/src/engine/platform/sound/x1_010/x1_010.hpp
+++ b/src/engine/platform/sound/x1_010/x1_010.hpp
@@ -63,6 +63,7 @@ public:
 
 	// getters
 	s32 output(u8 channel) { return m_out[channel & 1]; }
+  s32 chan_out(u8 channel) { return (m_voice[channel].data * (m_voice[channel].vol_out[0]+m_voice[channel].vol_out[1]))<<2; }
 
 	// internal state
 	void reset();
diff --git a/src/engine/platform/swan.cpp b/src/engine/platform/swan.cpp
index 9ac07f6e6..97aa7b9ef 100644
--- a/src/engine/platform/swan.cpp
+++ b/src/engine/platform/swan.cpp
@@ -107,6 +107,9 @@ void DivPlatformSwan::acquire(short* bufL, short* bufR, size_t start, size_t len
     ws->SoundFlush(samp, 1);
     bufL[h]=samp[0];
     bufR[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;
+    }
   }
 }
 
@@ -457,6 +460,10 @@ void* DivPlatformSwan::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformSwan::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformSwan::getRegisterPool() {
   // get Random from emulator
   regPool[0x12]=ws->SoundRead(0x92);
@@ -532,6 +539,8 @@ int DivPlatformSwan::init(DivEngine* p, int channels, int sugRate, unsigned int
   rate=chipClock/16; // = 192000kHz, should be enough
   for (int i=0; i<4; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
+    oscBuf[i]->rate=rate;
   }
   ws=new WSwan();
   reset();
@@ -539,6 +548,9 @@ int DivPlatformSwan::init(DivEngine* p, int channels, int sugRate, unsigned int
 }
 
 void DivPlatformSwan::quit() {
+  for (int i=0; i<4; i++) {
+    delete oscBuf[i];
+  }
   delete ws;
 }
 
diff --git a/src/engine/platform/swan.h b/src/engine/platform/swan.h
index c03dd0d55..32f400e5b 100644
--- a/src/engine/platform/swan.h
+++ b/src/engine/platform/swan.h
@@ -57,6 +57,7 @@ class DivPlatformSwan: public DivDispatch {
       wave(-1) {}
   };
   Channel chan[4];
+  DivDispatchOscBuffer* oscBuf[4];
   bool isMuted[4];
   bool pcm, sweep, furnaceDac;
   unsigned char sampleBank, noise;
@@ -78,6 +79,7 @@ class DivPlatformSwan: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/vera.cpp b/src/engine/platform/vera.cpp
index ccb819c9d..4dcc8f6c5 100644
--- a/src/engine/platform/vera.cpp
+++ b/src/engine/platform/vera.cpp
@@ -111,12 +111,20 @@ void DivPlatformVERA::acquire(short* bufL, short* bufR, size_t start, size_t len
     }
     int curLen=MIN(len,128);
     memset(buf,0,sizeof(buf));
-    psg_render(psg,buf[0],buf[1],curLen);
     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);
       pos++;
+
+      for (int i=0; i<16; i++) {
+        oscBuf[i]->data[oscBuf[i]->needle++]=psg->channels[i].lastOut<<4;
+      }
+      int pcmOut=buf[2][i]+buf[3][i];
+      if (pcmOut<-32768) pcmOut=-32768;
+      if (pcmOut>32767) pcmOut=32767;
+      oscBuf[16]->data[oscBuf[16]->needle++]=pcmOut;
     }
     len-=curLen;
   }
@@ -373,6 +381,10 @@ void* DivPlatformVERA::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformVERA::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformVERA::getRegisterPool() {
   return regPool;
 }
@@ -426,6 +438,7 @@ void DivPlatformVERA::poke(std::vector<DivRegWrite>& wlist) {
 int DivPlatformVERA::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
   for (int i=0; i<17; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
   parent=p;
   psg=new struct VERA_PSG;
@@ -434,11 +447,17 @@ int DivPlatformVERA::init(DivEngine* p, int channels, int sugRate, unsigned int
   skipRegisterWrites=false;
   chipClock=25000000;
   rate=chipClock/512;
+  for (int i=0; i<17; i++) {
+    oscBuf[i]->rate=rate;
+  }
   reset();
   return 17;
 }
 
 void DivPlatformVERA::quit() {
+  for (int i=0; i<17; i++) {
+    delete oscBuf[i];
+  }
   delete psg;
   delete pcm;
 }
diff --git a/src/engine/platform/vera.h b/src/engine/platform/vera.h
index ddcbed36a..734db020b 100644
--- a/src/engine/platform/vera.h
+++ b/src/engine/platform/vera.h
@@ -53,6 +53,7 @@ class DivPlatformVERA: public DivDispatch {
       Channel(): freq(0), baseFreq(0), pitch(0), pitch2(0), note(0), ins(-1), pan(0), active(false), freqChanged(false), inPorta(false), vol(0), outVol(0), accum(0), noiseval(0) {}
     };
     Channel chan[17];
+    DivDispatchOscBuffer* oscBuf[17];
     bool isMuted[17];
     unsigned char regPool[67];
     struct VERA_PSG* psg;
@@ -65,6 +66,7 @@ class DivPlatformVERA: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/vic20.cpp b/src/engine/platform/vic20.cpp
index 32b1418f2..33250bfc6 100644
--- a/src/engine/platform/vic20.cpp
+++ b/src/engine/platform/vic20.cpp
@@ -77,6 +77,9 @@ void DivPlatformVIC20::acquire(short* bufL, short* bufR, size_t start, size_t le
     vic_sound_machine_calculate_samples(vic,&samp,1,1,0,SAMP_DIVIDER);
     bufL[h]=samp;
     bufR[h]=samp;
+    for (int i=0; i<4; i++) {
+      oscBuf[i]->data[oscBuf[i]->needle++]=vic->ch[i].out?(vic->volume<<11):0;
+    }
   }
 }
 
@@ -275,6 +278,10 @@ void* DivPlatformVIC20::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformVIC20::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformVIC20::getRegisterPool() {
   return regPool;
 }
@@ -314,6 +321,9 @@ void DivPlatformVIC20::setFlags(unsigned int flags) {
     chipClock=COLOR_NTSC*2.0/7.0;
   }
   rate=chipClock/4;
+  for (int i=0; i<4; i++) {
+    oscBuf[i]->rate=rate;
+  }
 }
 
 void DivPlatformVIC20::poke(unsigned int addr, unsigned short val) {
@@ -330,6 +340,7 @@ int DivPlatformVIC20::init(DivEngine* p, int channels, int sugRate, unsigned int
   skipRegisterWrites=false;
   for (int i=0; i<4; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
   setFlags(flags);
   vic=new sound_vic20_t();
@@ -338,6 +349,9 @@ int DivPlatformVIC20::init(DivEngine* p, int channels, int sugRate, unsigned int
 }
 
 void DivPlatformVIC20::quit() {
+  for (int i=0; i<4; i++) {
+    delete oscBuf[i];
+  }
   delete vic;
 }
 
diff --git a/src/engine/platform/vic20.h b/src/engine/platform/vic20.h
index 2b3f08e7f..f05ad8f2b 100644
--- a/src/engine/platform/vic20.h
+++ b/src/engine/platform/vic20.h
@@ -56,6 +56,7 @@ class DivPlatformVIC20: public DivDispatch {
       waveWriteCycle(-1) {}
   };
   Channel chan[4];
+  DivDispatchOscBuffer* oscBuf[4];
   bool isMuted[4];
   bool hasWaveWrite;
 
@@ -67,6 +68,7 @@ class DivPlatformVIC20: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/vrc6.cpp b/src/engine/platform/vrc6.cpp
index 64c4b831c..835acf4b8 100644
--- a/src/engine/platform/vrc6.cpp
+++ b/src/engine/platform/vrc6.cpp
@@ -97,6 +97,14 @@ void DivPlatformVRC6::acquire(short* bufL, short* bufR, size_t start, size_t len
     if (sample<-32768) sample=-32768;
     bufL[i]=bufR[i]=sample;
 
+    // Oscilloscope buffer part
+    if (++writeOscBuf>=32) {
+      writeOscBuf=0;
+      for (int i=0; i<3; i++) {
+        oscBuf[i]->data[oscBuf[i]->needle++]=vrc6.chan_out(i)<<10;
+      }
+    }
+
     // Command part
     while (!writes.empty()) {
       QueuedWrite w=writes.front();
@@ -427,6 +435,10 @@ void* DivPlatformVRC6::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformVRC6::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformVRC6::getRegisterPool() {
   return regPool;
 }
@@ -471,6 +483,9 @@ void DivPlatformVRC6::setFlags(unsigned int flags) {
     rate=COLOR_NTSC/2.0;
   }
   chipClock=rate;
+  for (int i=0; i<3; i++) {
+    oscBuf[i]->rate=rate/32;
+  }
 }
 
 void DivPlatformVRC6::notifyInsDeletion(void* ins) {
@@ -491,8 +506,10 @@ int DivPlatformVRC6::init(DivEngine* p, int channels, int sugRate, unsigned int
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
+  writeOscBuf=0;
   for (int i=0; i<3; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
   setFlags(flags);
   reset();
@@ -500,6 +517,9 @@ int DivPlatformVRC6::init(DivEngine* p, int channels, int sugRate, unsigned int
 }
 
 void DivPlatformVRC6::quit() {
+  for (int i=0; i<3; i++) {
+    delete oscBuf[i];
+  }
 }
 
 DivPlatformVRC6::~DivPlatformVRC6() {
diff --git a/src/engine/platform/vrc6.h b/src/engine/platform/vrc6.h
index 789af7f52..dd6863d5f 100644
--- a/src/engine/platform/vrc6.h
+++ b/src/engine/platform/vrc6.h
@@ -65,6 +65,7 @@ class DivPlatformVRC6: public DivDispatch {
       outVol(15) {}
   };
   Channel chan[3];
+  DivDispatchOscBuffer* oscBuf[3];
   bool isMuted[3];
   struct QueuedWrite {
       unsigned short addr;
@@ -73,6 +74,7 @@ class DivPlatformVRC6: public DivDispatch {
   };
   std::queue<QueuedWrite> writes;
   unsigned char sampleBank;
+  unsigned char writeOscBuf;
   vrcvi_intf intf;
   vrcvi_core vrc6;
   unsigned char regPool[13];
@@ -83,6 +85,7 @@ class DivPlatformVRC6: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();
diff --git a/src/engine/platform/x1_010.cpp b/src/engine/platform/x1_010.cpp
index 42319a29b..a2e28b518 100644
--- a/src/engine/platform/x1_010.cpp
+++ b/src/engine/platform/x1_010.cpp
@@ -252,6 +252,10 @@ void DivPlatformX1_010::acquire(short* bufL, short* bufR, size_t start, size_t l
     //printf("tempL: %d tempR: %d\n",tempL,tempR);
     bufL[h]=stereo?tempL:((tempL+tempR)>>1);
     bufR[h]=stereo?tempR:bufL[h];
+
+    for (int i=0; i<16; i++) {
+      oscBuf[i]->data[oscBuf[i]->needle++]=x1_010->chan_out(i);
+    }
   }
 }
 
@@ -822,6 +826,10 @@ void* DivPlatformX1_010::getChanState(int ch) {
   return &chan[ch];
 }
 
+DivDispatchOscBuffer* DivPlatformX1_010::getOscBuffer(int ch) {
+  return oscBuf[ch];
+}
+
 unsigned char* DivPlatformX1_010::getRegisterPool() {
   for (int i=0; i<0x2000; i++) {
     regPool[i]=x1_010->ram_r(i);
@@ -888,6 +896,9 @@ void DivPlatformX1_010::setFlags(unsigned int flags) {
   }
   rate=chipClock/512;
   stereo=flags&16;
+  for (int i=0; i<16; i++) {
+    oscBuf[i]->rate=rate;
+  }
 }
 
 void DivPlatformX1_010::poke(unsigned int addr, unsigned short val) {
@@ -905,6 +916,7 @@ int DivPlatformX1_010::init(DivEngine* p, int channels, int sugRate, unsigned in
   stereo=false;
   for (int i=0; i<16; i++) {
     isMuted[i]=false;
+    oscBuf[i]=new DivDispatchOscBuffer;
   }
   setFlags(flags);
   intf.parent=parent;
@@ -915,6 +927,9 @@ int DivPlatformX1_010::init(DivEngine* p, int channels, int sugRate, unsigned in
 }
 
 void DivPlatformX1_010::quit() {
+  for (int i=0; i<16; i++) {
+    delete oscBuf[i];
+  }
   delete x1_010;
 }
 
diff --git a/src/engine/platform/x1_010.h b/src/engine/platform/x1_010.h
index 8dc749842..11de4bf4a 100644
--- a/src/engine/platform/x1_010.h
+++ b/src/engine/platform/x1_010.h
@@ -112,6 +112,7 @@ class DivPlatformX1_010: public DivDispatch {
       waveBank(0) {}
   };
   Channel chan[16];
+  DivDispatchOscBuffer* oscBuf[16];
   bool isMuted[16];
   bool stereo=false;
   unsigned char sampleBank;
@@ -126,6 +127,7 @@ class DivPlatformX1_010: public DivDispatch {
     void acquire(short* bufL, short* bufR, size_t start, size_t len);
     int dispatch(DivCommand c);
     void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
     void reset();