[MPlayer-users] -speed switch cause broken audiodump.wav

[Arpi]

Hi,

> When the mplayer options "-speed 100 -ao pcm -waveheader" are used
> together to speed up the dump process, then the samplerate field in
> the header of audiodump.wav is mutliplied by 100. This gives a
> samplerate of e.g. 4800000 written in the header while the data really
> has only 48000. This renders the dumped file to be pretty useless. Is
> this by intention?

yes

-speed means playback speed. if you specify -speed 100 it means that
playback the file 100 times faster, which means audio pitch 100 times
higher. if you write it to a wav, you'll get 100x faster sound when playback
it...

> BTW: "-vc null -vo null" crashes for some reason. 

feel free to send bugreport, if you want it to be fixed...


A'rpi / Astral & ESP-team

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