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New page: Ed. note: Sorry this is more like a blog post. Having recorded the Molin Upper Elementary 5th Grade Christmas Concert using my video camera, I wanted to extract just the audio portion so ...
Ed. note: Sorry this is more like a blog post.
Having recorded the Molin Upper Elementary 5th Grade Christmas Concert using my video camera, I wanted to extract just the audio portion so that I could listen to the music all by itself without having to play the video. Besides, I could send the audio portion much more easily than I could send the 948 MB video file through email. A lossless .ogg file would be only 21 MB and 14 MB in lossy mp3 format.
The [[Video Editing]] article gives some examples for using mencoder and ffmpeg, but in this case I found using mplayer on the command line was very straightforward after some initial trial and error. I was surprised to find out that Avidemux didn't just do what I wanted.
<source lang="bash">
# try mplayer, but it did not work
mplayer -dumpaudio VID00001.AVI -dumpfile molin-5th-grade-xmas-concert.mp3
## Try instead to use ffmpeg
# tell me information about my source file
ffmpeg -i VID00001.AVI
# copy the audio codec; but name the output .mp3 (of course this will not work)
ffmpeg -i VID00001.AVI -acodec copy molin-5th-grade-xmas-concert.mp3
# copy the audio codec; disable video; but name the output .mp3 (of course this will not work)
ffmpeg -i VID00001.AVI -vn -acodec copy molin-5th-grade-xmas-concert.mp3
# disable video; use mp3 codec (that is not the name of a valid codec)
ffmpeg -i VID00001.AVI -vn -acodec mp3 molin-5th-grade-xmas-concert.mp3
# let ffmpeg figure out what I want (WORKED)
ffmpeg -i VID00001.AVI -vn molin-5th-grade-xmas-concert.mp3
</source>
http://soundconverter.berlios.de/header.png
For creating the .ogg file, I went with the easier GUI approach and used '''SoundConverter'''
http://soundconverter.berlios.de/
[[Category:Multimedia]]
[[Category:Music]]
Having recorded the Molin Upper Elementary 5th Grade Christmas Concert using my video camera, I wanted to extract just the audio portion so that I could listen to the music all by itself without having to play the video. Besides, I could send the audio portion much more easily than I could send the 948 MB video file through email. A lossless .ogg file would be only 21 MB and 14 MB in lossy mp3 format.
The [[Video Editing]] article gives some examples for using mencoder and ffmpeg, but in this case I found using mplayer on the command line was very straightforward after some initial trial and error. I was surprised to find out that Avidemux didn't just do what I wanted.
<source lang="bash">
# try mplayer, but it did not work
mplayer -dumpaudio VID00001.AVI -dumpfile molin-5th-grade-xmas-concert.mp3
## Try instead to use ffmpeg
# tell me information about my source file
ffmpeg -i VID00001.AVI
# copy the audio codec; but name the output .mp3 (of course this will not work)
ffmpeg -i VID00001.AVI -acodec copy molin-5th-grade-xmas-concert.mp3
# copy the audio codec; disable video; but name the output .mp3 (of course this will not work)
ffmpeg -i VID00001.AVI -vn -acodec copy molin-5th-grade-xmas-concert.mp3
# disable video; use mp3 codec (that is not the name of a valid codec)
ffmpeg -i VID00001.AVI -vn -acodec mp3 molin-5th-grade-xmas-concert.mp3
# let ffmpeg figure out what I want (WORKED)
ffmpeg -i VID00001.AVI -vn molin-5th-grade-xmas-concert.mp3
</source>
http://soundconverter.berlios.de/header.png
For creating the .ogg file, I went with the easier GUI approach and used '''SoundConverter'''
http://soundconverter.berlios.de/
[[Category:Multimedia]]
[[Category:Music]]