[alsa-devel] Media players report 96khz, proc reports 44khz

Takashi Iwai tiwai at suse.de
Mon Apr 4 12:58:47 CEST 2011

At Sun, 3 Apr 2011 23:58:45 +0200,
TS Lura wrote:
> Hey,
>  I am trying to play a 96kHz/24-bit pcm file:
>  {{{
>  [2309][root at ubuntu:~]# file test.wav
>  test.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 32 bit,
>  stereo 96000 Hz
>  }}}
>  Which plays with full 96kHz resolution under aplay. But under any other
>  player as VLC, mplayer, totem it plays at 44kHz reported by
>  /proc/asound/card1/stream0, even if the player is reporting to be playing
>  at 96kHz.
>  Others have reported the same problem:
> http://www.head-fi.org/forum/thread/243027/how-to-make-m-audio-transit-worn-in-ubuntu
>  Some people at mplayer @ irc.freenode.net encouraged me to file a bug
>  report on this issue. Hope it is useful.

This is no bug.  You are running PA, and PA takes only one sample-rate
as the base sample-rate.  Change your PA configuration if you want a
higher rate.


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