I recorded a three-hour training class on my miniDV video camera. I can capture the video to a file, but is there any way to rip the audio out of that file to a WAV or MP3? I don’t really need the video portion; I want to use the audio as a soundtrack for a PowerPoint presentation.
I can always play back the movie and record the output from the card as analog sound, but that has to happen in real time and I was wondering if there was a way to just capture it digitally.
Try VirtualDub (my favourite AV freeware). If you can import the file, you can export the sound as either a WAV or MP3.
If the “file” is in DVD format, you can try “DVD Audio Extractor”
http://www.tucows.com/preview/343833
I have an earlier version of this, and it works great (on DVDs). Rips the audio to .wav files in (much) faster than realtime.
What format is the file? If it’s avi or mpg I’ll second Virtualdub. Just click “Streams” then save “Save wav”. I have to do this all the time for audio-video out of sync problems.
I tried VirtualDub but it produced empty files. Went through the motions but heard absolutely nothing when I played them back, for WAV and MP3.
Tried AOA AUdio Extractor but it repeatedly generated a fatal error on startup.
Tried AviSynth but it generated files with raised pitch, chipmunk style.
It’s an AVI file so DVD extractors won’t work.
The search continues…
I have had success with Goldwave in this respect: www.goldwave.com
Limited demo should let you know if it’s worth buying later.
AudioFactoryTools video to audio converter generates a floating point exception at the end of the conversion. Output file is generated but left and right channels are out of sync created horrendous echo problem.
This one worked great
Free website:
http://www.vmeste.fr/data/svs/index.php
Put the file name and location in the field and away you go. MP3 is the result. It’s labeled as a YouTube audio extractor but it works with a lot of different video types.
I’d look at a program called, “Super”. You can read about it here and there is a download link there as well.
I usually use mplayer on Linux but cannot vouch for the windows version. It’s a very mature application and is always reliable so I assume it works well under windows. Plus it’s free so you haven’t lost anything if it doesn’t work
I’ll second MPlayer. The command line should go something like this:
mplayer -ao pcm:file=soundtrack.wav VideoFile.avi
This makes the audio file WAV, which really eats up disk space but is guaranteed to be as good as the video file’s audio. There are GUI frontends to MPlayer on Linux (SMPlayer is one, KMPlayer is another) but I don’t know of any for Windows.