diff --git a/engine/MUNGA/AUDCMP.cpp b/engine/MUNGA/AUDCMP.cpp
index 1e20e18..f83597e 100644
--- a/engine/MUNGA/AUDCMP.cpp
+++ b/engine/MUNGA/AUDCMP.cpp
@@ -632,6 +632,10 @@ void
       }
 
 		Check(audioComponentSocket.GetCurrent());
+		if (getenv("BT_AUDIO_SPATIAL")) { static int s_mix=0; if (s_mix++<80)
+			DEBUG_STREAM << "[mix] mixer=" << (void*)this << " -> tgt=" << (void*)audioComponentSocket.GetCurrent()
+				<< " outCtl=" << (int)outputControlID << " in[" << index << "]=" << control_value
+				<< " sum=" << mixed_value << "\n" << std::flush; }
       audioComponentSocket.GetCurrent()->ReceiveControl(
       	outputControlID,
          mixed_value
@@ -1319,6 +1323,10 @@ void
 	nextSampleTime += sampleDuration;
 
 	Check(audioComponentSocket.GetCurrent());
+	if (getenv("BT_AUDIO_SPATIAL")) { static int s_sh=0; if (s_sh++<60)
+		DEBUG_STREAM << "[snh] this=" << (void*)this << " -> tgt=" << (void*)audioComponentSocket.GetCurrent()
+			<< " ctlID=" << (int)audioControlID << " val=" << currentValue
+			<< " range=[" << minValue << "," << maxValue << "]\n" << std::flush; }
 	audioComponentSocket.GetCurrent()->ReceiveControl(
 		audioControlID,
 		currentValue
diff --git a/engine/MUNGA/AUDWTHR.h b/engine/MUNGA/AUDWTHR.h
index c36f706..abb6b49 100644
--- a/engine/MUNGA/AUDWTHR.h
+++ b/engine/MUNGA/AUDWTHR.h
@@ -521,6 +521,13 @@ template <class T>
 	MemoryStream_Read(stream, &controlValueBoundary1);
 	MemoryStream_Read(stream, &controlValueBoundary2);
 	MemoryStream_Read(stream, &exponent);
+
+	if (getenv("BT_ATTRBIND_LOG")) { static int s_scf=0; if (s_scf++<160)
+		DEBUG_STREAM << "[scalecfg] attrPtr=" << (void*)attributePointer
+			<< " comp=" << (void*)audioComponentSocket.GetCurrent()
+			<< " ctlID=" << (int)controlID
+			<< " aB=[" << attributeValueBoundary1 << "," << attributeValueBoundary2 << "]"
+			<< " cB=[" << controlValueBoundary1 << "," << controlValueBoundary2 << "]\n" << std::flush; }
 }
 
 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~