Re: mp4 video file to mp3 audio file

[Kelly Clowers <kelly.clowers@gmail.com>]

On Sat, Jun 6, 2009 at 09:14, ronggui wong <ronggui.wong@gmail.com> wrote:
> Dear all,
>
> I have some MTV in *.mp4 format, and I would to convert them to mp3
> format. What software should I use?
> I try ffmpeg using ffmpeg -i in.mp4 out.mp3, but it seems something
> goes wrong as I can not play the out.mp3 with audacious player.

hmmm, I just that same command to get mp3 audio out of
a mp4/h.264/aac file.

Does ffmpeg giv you info about what it is doing, like this:

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'LarryOstermanWin7Audio.mp4':
  Duration: 00:56:39.79, start: 0.000000, bitrate: 454 kb/s
    Stream #0.0(und): Video: h264, yuv420p, 320x240, 29.97 tbr, 29.97
tbn, 59.94 tbc
    Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16
Output #0, mp3, to 'test.mp3':
    Stream #0.0(und): Audio: libmp3lame, 48000 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.1 -> #0.0

Have you tried playing the mp3 with mpg123 or mplayer?


Cheers,
Kelly Clowers