[MPlayer-users] How to create a wav file with silence with MPlayer

Rich Felker dalias at aerifal.cx
Mon Oct 3 23:32:02 CEST 2005


On Mon, Oct 03, 2005 at 10:54:53AM -0400, Giacomo Comes wrote:
> Hi,
> Up to MPlayer 1.0pre7 I was able to create a wav file with silence with the
> following command line:
> 
> mplayer -rawaudio on:format=0x1:rate=48000 /dev/zero -nocache -frames 4 -ao pcm:waveheader:file=silence.wav
> 
> The advantage of this method is that I can easily select the frame rate and
> the duration (-frames) of the wav file.
> 
> With CVS the syntax has changed. The corresponding command line is:
> 
> mplayer -demuxer 20 -rawaudio format=0x1:rate=48000 /dev/zero -nocache -frames 4 -ao pcm:waveheader:file=silence.wav
> 
> The problem now is that MPlayer never stops. It ignores completly the option -frames. Is there a way to restore the old beahviour?

What in the world do you mean by 4 frames of pcm audio??
Anyway using mplayer for this is rather overkill. It can be done
trivially with a shell script, almost as short as your mplayer command
line...

Rich




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