Fix unpack, add audio dump

FMControl.h

@@ -23,6 +23,11 @@
 #include "Defines.h"
 #include "IIRDirectForm1Filter.h"
 
+// Uncomment this to dump audio to a raw audio file
+// The file will be written in same folder as executable
+// Toplay the file : aplay -f FLOAT_LE -c1 -r8000 -t raw audiodump.bin
+//#define DUMP_RF_AUDIO
+
 class CFMControl {
 public:
 	CFMControl(CFMNetwork* network);