[MPlayer-users] extract audio
Guldo K
guldo at tiscali.it
Sun Dec 28 20:56:05 CET 2003
The Wanderer writes:
> The first method should produce an MP3 of the exact same quality as is
> used in the AVI itself; if it doesn't, then either you're doing
> something wrong or there's a bug in MPlayer. Many video files use
> low-quality MP3 to compress their audio; there is no way to get a better
> quality than what was used with the video itself.
>
> Using the second method *cannot* produce a higher-quality audio file
> than the first one does. It can produce a file with a higher bitrate,
> but all of the extra bits are being wasted on compressing noise and
> artifacts; there is no improvement whatsoever, and there can be a
> considerable decrease in quality.
>
> No, -lameopts can't be used (unless I'm missing a lot); that's for
> MEncoder only, and carries the same audio-quality problems as the second
> method I described. Really, if you can get a playable audio file out of
> -dumpaudio at all, then that should be by far the best method of getting
> audio out of the file using MPlayer.
Thank you very much for the useful explanation.
Maybe the source avi had a "bad" audio itself.
I'd try with some other input.
Thanks a lot!
*Guldo*
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