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'-ab' option is related to audio quality? how to say ffmpeg to keep the original audio quality during conversion?

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up vote 4 down vote accepted

I don't know that much about FFmpeg but after some Googling I found that you can use -acodec copy as parameter to simply take the audio from the source file.

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See the documentation on stream copying for more information. – LordNeckbeard Aug 3 '13 at 18:39

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