Tool to bulk speed up/convert an audio file

Posted by User1 on Super User See other posts from Super User or by User1
Published on 2012-12-15T05:17:46Z Indexed on 2012/12/15 17:07 UTC
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Filed under:

linux

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audio

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ffmpeg

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podcasts

I want to listen to certain podcasts on my phone but I have two common problems:

The audio is in some weird format (some don't play on my phone).
The audio is slow.

I want to use something like sox or avconv to bulk convert the files. Since this is just voice and going on a cell phone, small low-quality files would be best for me. I had some good success using avconv:

avconv -i weird.wma normal.ogg

Unforunately, this command creates an enormous ogg file and I can't get it play faster. Ideally, this particular file would play at 170% of the original speed.

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