Hi list! I am testing my audio devices using the test auddemo of pjsip. I have 2 devices in my system: ALSA und PA (port audio). Using the auddemo program I try to play a file with this header: Signed 16 bit Little Endian, Rate 32000 Hz, Mono If I use the ALSA device it is opened correctly: Enter selection: p 1 sounds/21737.32kHz.wav File player 'sounds/21737.32kHz.wav' created: samp.rate=32000, ch=1, bufsize=4KB, filesize=107KB open_playback: Open playback device 'hw:0,1' open_playback: set format SND_PCM_FORMAT_S16_LE open_playback: set channels: 1 open_playback: set clock rate: 32000 open_playback: clock rate set to: 32000 open_playback: set period size: 640 open_playback: period size set to: 640 open_playback: set buffer size: 3200 open_playback: buffer size set to: 3200 open_playback: playback_latency set to: 100 ms Opened device alsa(hw:0,1) for playing, sample rate=32000, ch=1, bits=16, period size=640 frames, latency=100 ms But I can't hear the audio. Otherwise if I use the PA device: Enter selection: p 2 sounds/21737.32kHz.wav File player 'sounds/21737.32kHz.wav' created: samp.rate=32000, ch=1, bufsize=4KB, filesize=107KB Opened device 0: Recdsp: Recdsp PCM (hw:0,0)(ALSA) for playing, sample rate=32000, ch=1, bits=16, 640 samples per frame, latency=100 ms Starting Recdsp: Recdsp PCM (hw:0,0) stream.. Done, status=0 I can hear the audio correctly. As I can see bellow the two audio devices are opened with the same configuration. Can anyone help me please? :) Thanks!! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120224/b5afc427/attachment.html>