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ripping audio from AV files, to avoid transcoding of audio data
post Jan 3 2012, 00:10
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It's been a while since I was last here. Got a quick question.
I've downloaded some video files, that I checked to have an AAC 256KBPS audio part. Let's say I don't want the video part, I want the audio. There are programs which can convert these video files to audio files, but they decode the audio to wav and then convert that to something else. So they transcode the audio. Since 256 k is pretty high quality anyway, I doubt transcoding to something equally high wouldn't make much difference, but still I don't want to lose anything by just taking the video out. Is there a way to cut the video out of the original file?
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post Mar 10 2012, 15:20
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Wait. You want to demux the audio, yes? What's the container format? If MKV, use MKVToolNix. If MP4, use MP4Box or with a UI such as YAMB.
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