[FFmpeg-user] Converting wma to mp3, avoiding joint stereo

Paul B Mahol onemda at gmail.com
Sun Apr 18 09:46:21 EEST 2021

use "-joint_stereo 0" option for ffmpeg.

Note that placing order is important.

On Sat, Apr 17, 2021 at 8:06 PM Alan Corey <alan01346 at gmail.com> wrote:

> New to the list, I've used ffmpeg for years on video files.  But I got
> from a torrent a bunch of classical wma files which not much in Linux
> can deal with.  So I did the basic
> ffmpeg -i somefile.wma somefile.mp3
> And it works, but mpg123 tells me the file is joint stereo.  It's
> quite possible the wma files are joint stereo, I don't know anything
> about them, but when I convert a flac file (to wav then mp3) I can at
> least nominally output true stereo.  Maybe it doesn't actually
> accomplish anything but I call LAME with -m s.  Is that possible with
> ffmpeg?  How?  Do I need to get into channel mapping?
> Joint stereo I remember from the early days of fm stereo that had to
> also be playable on mono radios.  Better than mono but not as good as
> true stereo.
>   Alan
> --
> -------------
> Education is contagious.
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