diff --git a/src/engine/platform/sound/ymfm/ymfm_opn.h b/src/engine/platform/sound/ymfm/ymfm_opn.h
index 1b47885b9..7fc76dac5 100644
--- a/src/engine/platform/sound/ymfm/ymfm_opn.h
+++ b/src/engine/platform/sound/ymfm/ymfm_opn.h
@@ -546,6 +546,12 @@ public:
 	// generate one sample of sound
 	void generate(output_data *output, uint32_t numsamples = 1);
 
+  // get the engine
+  fm_engine* debug_fm_engine() { return &m_fm; }
+  ssg_engine* debug_ssg_engine() { return &m_ssg; }
+  adpcm_a_engine* debug_adpcm_a_engine() { return &m_adpcm_a; }
+  adpcm_b_engine* debug_adpcm_b_engine() { return &m_adpcm_b; }
+
 protected:
 	// internal helpers
 	void update_prescale(uint8_t prescale);
diff --git a/src/engine/platform/ym2608.cpp b/src/engine/platform/ym2608.cpp
index 5e058dab3..4f05fc01c 100644
--- a/src/engine/platform/ym2608.cpp
+++ b/src/engine/platform/ym2608.cpp
@@ -428,7 +428,6 @@ double DivPlatformYM2608::NOTE_ADPCMB(int note) {
 void DivPlatformYM2608::acquire(short* bufL, short* bufR, size_t start, size_t len) {
   static int os[2];
 
-  /*
   ymfm::ym2612::fm_engine* fme=fm->debug_fm_engine();
   ymfm::ssg_engine* ssge=fm->debug_ssg_engine();
   ymfm::adpcm_a_engine* aae=fm->debug_adpcm_a_engine();
@@ -442,7 +441,6 @@ void DivPlatformYM2608::acquire(short* bufL, short* bufR, size_t start, size_t l
     fmChan[i]=fme->debug_channel(i);
     adpcmAChan[i]=aae->debug_channel(i);
   }
-  */
 
   for (size_t h=start; h<start+len; h++) {
     os[0]=0; os[1]=0;
@@ -470,7 +468,6 @@ void DivPlatformYM2608::acquire(short* bufL, short* bufR, size_t start, size_t l
     bufL[h]=os[0];
     bufR[h]=os[1];
 
-    /*
     for (int i=0; i<6; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=(fmChan[i]->debug_output(0)+fmChan[i]->debug_output(1));
     }
@@ -485,7 +482,6 @@ void DivPlatformYM2608::acquire(short* bufL, short* bufR, size_t start, size_t l
     }
 
     oscBuf[15]->data[oscBuf[15]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
-    */
   }
 }