Tool to demux audio from WMV?

[glueteeth]

I'm hoping to find a freeware command-line tool to extract the audio from a .wmv, my target format is .mp3 (11025Hz, Mono, 24Kbps)

Does anyone know of such a tool?

[MOVIEGEEK]

D/L:
TMPGEnc
LAME.EXE
1.Drop Lame.exe into tmpgenc folder then enable in Environmental Settings.
2.Open TMPGEnc and in "Audio Source" select your .wmv file.
3.Hit "Settings" and select "MPEG-1 Layer III" and choose bitrate.
4.Hit Start.

Note:this won't work if the file is DRM protected,if so play the video and record analog using Audacity.

[glueteeth]

Thanks! That was helpful... but...

The TMPGEnc interface (I've got TMPGEnc Plus-2.521.58.169) doesn't let me select a bit rate as low as 24kbps, nor a sample rate as low as 11025Hz.

I can use lame to do this on the command line, but I'm not that familair with .wmv - is there a command-line tool to do the demux? If so, what format would the resulting audio be in?

[MOVIEGEEK]

You could use Audacity to convert to 24kbps,11025hz,mono.

[glueteeth]

I used Goldwave. It was pretty easy - drop'd the file on the app, and selected 'Save as' and set it to mp3 11025 24kbps mono and it worked.

I still would really like to know if there is a comand line tool to demux the audio from a .wmv file.

[deckard8]

You could also possibly :>

Load the wmv file into windows media encoder. Reencode the movie as "Uncompressed"

note: you will need about 22 gigs HD space for a 320x240, 1 hour 45 minute movie.

This new wmv file can now be opened into VirtualDub where you can save audio track as wav

[glueteeth]

FFMPEG is the answer. This freeware command-line utility allows me to give a wmv as input and specify the output as mp3. It is very flexibile and allows a multitude of i/o formats.