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Just annotations of little "how to's", so I know I can find how to do something I've already done when I need to do it again, in case I don't remember anymore, which is not unlikely. Hopefully they can be useful to others, but I can't guarantee that it will work, or that it won't even make things worse.
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Speeding up and reducing the quality of podcasts (saving disk space)

Posted 04-29-2017 at 10:49 PM by the dsc (linux-related notes)
Updated 10-24-2020 at 12:25 AM by the dsc (video-related tip)
An interesting method I now realize is possible:

Code:
ffmpeg -i in-normal.mp3 -filter:a "atempo=1.4" -f wav - | lame -q 2 -v --vbr-new -V 9 -b8 -B 20 - out_speedup.mp3
A previous method I was using had sox and for some reason mpg123 or 321 I guess, to generate a "physical" temporary wav somewhere, this method use a pipe instead of an actual temporary file.

The input file isn't necessarily mp3, it can be m4a/aac at least, possibly also webm,...
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Posted in Uncategorized
Views 2262 Comments 1 the dsc is offline

  



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