[MPlayer-users] can't open audio device on 1.0pre3

[yourself]

> messages from 0.91:
> Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
> AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int 
> AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
> AO: [oss] 48000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
> Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
> Starting playback...

Looks like using OSS...

> messages form 1.0pre3 (the same with 0.92):
> Checking audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
> AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int 
> AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
> alsa-init: requested format: 48000 Hz, 2 channels, Signed 16-bit
> (Little-Endian) alsa-init: 1 soundcard found, using: hw:0,0
> alsa-init: format Signed 16-bit (Little-Endian) are not supported by
> hardware, trying default alsa-init: unable to set format: Argumento inválido
> AO: [null] 48000Hz 2ch Signed 16-bit (Little-Endian) (2 bps)
> Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
> Starting playback...

Looks like trying to use ALSA but failing (not configured correctly?)
Have you tried using -ao oss ? Maybe 0.91 wasn't built with alsa enabled 
and thus used OSS... Can you play anything at all using alsa? (try aplay 
somefile.wav).

By the way, have I missed something in your post? I couldn't find any 
refernece to mplayer being unable to open the audio device, just that 
alsa could not play 48Khz,16bit stereo audio.

-- 
yourself