Hey Samuel > It seems it's impossible to open sound device from console on iPhone. What do you mean with "console"? > Could you try with sound file with sample rate to 8khz. Yeah, I tried that as well: 23:15:44.794 wav_player.c File player 'MyTest.app/test.wav' created: samp.rate=8000, ch=1, bufsize=4KB, filesize=53KB ...but that fails the same way. cheers -- Torsten