[MPlayer-users] two question about sound in mplayer
jknutar at nic.fi
Wed Mar 25 19:16:49 CET 2009
On Monday 16 March 2009, peng shao wrote:
>===== [AO_ALSA] Playback open error: Device or resource busy
> I installed mplayer through svn several weeks ago so there is no
> problem with the version of it.
> So what am I supposed to do? Thank you.
My guess would be that something else is using the sound without letting
mplayer share it.
You could try:
lsof | grep snd
to find out which applications are using it.
An example from my own system:
pulseaudi 4506 jk 26u CHR 116,6 0t0
This indicates pulseaudio is using the sound.
> 2. What is the function of the option "normalize sound" in
> gmplayer/mplayer? I am just curious about it..
It's probably tied to -af volnorm, which tries to make all files sound
equally loud. It looks at the volume over a short period and adjusts it.
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