New debug scheme with explicit debug channels declaration.

diff --git a/dlls/msacm32/filter.c b/dlls/msacm32/filter.c
index 7420343..67d6604 100644
--- a/dlls/msacm32/filter.c
+++ b/dlls/msacm32/filter.c
@@ -11,6 +11,8 @@
 #include "msacmdrv.h"
 #include "debug.h"
 
+DEFAULT_DEBUG_CHANNEL(msacm)
+
 /***********************************************************************
  *           acmFilterChooseA (MSACM32.13)
  */