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Extract audio stream from an AVI file using mencoder

Terminal - Extract audio stream from an AVI file using mencoder
mencoder "${file}" -of rawaudio -oac mp3lame -ovc copy -o audio/"${file/%avi/mp3}"
2009-02-15 14:57:54
User: fulat2k
Extract audio stream from an AVI file using mencoder

This commands saves the output in the audio directory. The portion ${file/%avi/mp3} uses bash string replacement to replace the avi to mp3 within the ${file} variable.


There is 1 alternative - vote for the best!

Terminal - Alternatives
mencoder "${file}" -of rawaudio -oac mp3lame -ovc copy -o "${file%.*}.mp3"
2012-12-14 03:49:52
User: Tungmar

This command extracts the audio stream of the video in $file and stores it in a file where the original suffix is changed to .mp3

Know a better way?

If you can do better, submit your command here.

What others think

If you want it without being mp3 compressed try this

mplayer $avi -vc null -vo null -ao pcm:fast:file=$wav

Comment by maht 318 weeks and 4 days ago

I did a batch operation on multiple files with

for file in `ls -1`;do mencoder "${file}" -of rawaudio -oac mp3lame -ovc copy -o audio/"${file/%avi/mp3}";done

assuming audio/ directory has been created beforehand.

This is simply an awesome one-liner. Thank you for sharing this!

Comment by xCrucialDudex 224 weeks and 1 day ago

Two things i've learned using this:

1) using mencoder is faster than "mplayer -audiodump"; the latter will play the entire video in normal speed as it dumps the audio.

2) If your files have spaces on their names use:

$ for file in *; do mencoder "${file}" -of rawaudio -oac lavc -ovc copy -o audio/"{file/%avi/}mp2";done

Comment by edutiao 190 weeks and 1 day ago

i also have this kinds of needs recently, and after long google search, i accidentally find a step by step guide on how to extract audio from MKV, MOV, MP4, WMV, AVI, MPG, VOB, 3GP, FLV, WebM, SWF, F4V, DivX, Xvid, ASF, RMVB, MVI, WTV, DVR, H.264, DV, MXF, AVCHD, MOD, TOD, MTS and etc at http://www.bigasoft.com/articles/audio-extractor-extract-audio-from-mp4-flv-avi-mkv-mov-wmv.html

It did help me to extract audio from mkv files and then allow me to save them as mp3, wmv, or wav

hope it also helps you

Comment by grahambuddhenry 113 weeks and 1 day ago

Follow the step by step guide how to extract audio from video at http://www.idealshare.net/extract-audio-from-video-mp4-avi-flv-mov-wmv-mkv-vob.html

This guide helps to:

Extract audio in MP3, AAC, AC3, WAV, WMA, Apple Lossless, M4A, DTS, AIFF, MP2, AU, RA, FLAC, OGG and etc from video files.

Extract audio from all kinds of video files like extract audio from MP4, extract audio from FLV, extract audio from AVI, extract audio from MOV, extract audio from MKV, extract audio from WMV, ASF, SWF, VOB, OGV, WTV, RMVB, WebM, MVI, MXF, AVCHD, MPEG, 3GP, and etc.

Comment by teamsuccessta 45 weeks ago

Your point of view

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