if someone is interested we have updated our RC Joystick NG^2 project that now support also PCM decoding for some radios (for now Sanwa Airtronics PCM1/2 but we are working also on Futaba and JR/Graupner... if someone would help sending us Futaba or JR/Graupner PCM recordings made with soundcard.... we need them to test/debug because we haven't that radios...)
the project is free
project homepage:
formatting link
ciao :-) alessio & andrea