diff --git a/engine/MUNGA/AUDCMP.cpp b/engine/MUNGA/AUDCMP.cpp
index f83597e..362f97c 100644
--- a/engine/MUNGA/AUDCMP.cpp
+++ b/engine/MUNGA/AUDCMP.cpp
@@ -473,6 +473,9 @@ void
 	while ((audio_component = iterator.ReadAndNext()) != NULL)
 	{
 		Check(audio_component);
+		if (getenv("BT_AUDIO_SPATIAL")) { static int s_sp2=0; if (s_sp2++<200)
+			DEBUG_STREAM << "[split] " << (void*)this << " -> tgt=" << (void*)audio_component
+				<< " ctl=" << (int)control_ID << "/" << control_value << "\n" << std::flush; }
 		audio_component->ReceiveControl(control_ID, control_value);
 	}
 }
diff --git a/engine/MUNGA/AUDIO.cpp b/engine/MUNGA/AUDIO.cpp
index b017424..f2d96e0 100644
--- a/engine/MUNGA/AUDIO.cpp
+++ b/engine/MUNGA/AUDIO.cpp
@@ -1,3 +1,4 @@
+#include <cstdlib>
 #include "munga.h"
 #pragma hdrstop
 
@@ -133,6 +134,8 @@ void
 	//
 	audioFrameCount = Now().ticks;
 	Verify(audioFrameCount < LONG_MAX);
+	if (getenv("BT_AUDIO_SPATIAL")) { static long s_hx=0; if ((++s_hx % 300)==0)
+		DEBUG_STREAM << "[audioclock] frame=" << audioFrameCount << " execs=" << s_hx << "\n" << std::flush; }
 
    //set current listener orientation
    Vector3D headVelocity;
diff --git a/engine/MUNGA/AUDSEQ.cpp b/engine/MUNGA/AUDSEQ.cpp
index 24a6d73..3d0f802 100644
--- a/engine/MUNGA/AUDSEQ.cpp
+++ b/engine/MUNGA/AUDSEQ.cpp
@@ -1,3 +1,4 @@
+#include <cstdlib>
 #include "munga.h"
 #pragma hdrstop
 
@@ -67,6 +68,9 @@ void
 {
 	Check(this);
 	Check(audio_component);
+	if (getenv("BT_AUDIO_SPATIAL")) { static int s_ev=0; if (s_ev++<200)
+		DEBUG_STREAM << "[seqev] tgt=" << (void*)audio_component
+			<< " ctl=" << (int)audioControlID << "/" << audioControlValue << "\n" << std::flush; }
 	audio_component->ReceiveControl(audioControlID, audioControlValue);
 }
 
diff --git a/engine/MUNGA/AUDWTHR.cpp b/engine/MUNGA/AUDWTHR.cpp
index 1f3c0e0..e4acd62 100644
--- a/engine/MUNGA/AUDWTHR.cpp
+++ b/engine/MUNGA/AUDWTHR.cpp
@@ -962,6 +962,14 @@ AudioStateTrigger::AudioStateTrigger(
 	MemoryStream_Read(stream, &excludeTransition);
 	MemoryStream_Read(stream, &excludeState);
 
+	if (getenv("BT_ATTRBIND_LOG")) { static int s_stc=0; if (s_stc++<120)
+		DEBUG_STREAM << "[statecfg] attrPtr=" << (void*)attributePointer
+			<< " comp=" << (void*)audioComponentSocket.GetCurrent()
+			<< " trigState=" << triggerState << " inv=" << (int)inverseTrigger
+			<< " ctl=" << (int)controlID << "/" << controlValue
+			<< " excl=" << (int)excludeTransition << "/" << excludeState
+			<< "\n" << std::flush; }
+
 	PrimeWatcher();
 }