[vorbis] Non-destructive channel reversal

Monty xiphmont at xiph.org
Mon Apr 1 21:22:52 PST 2002



On Sat, Feb 23, 2002 at 08:34:01PM -0400, James O'Malley wrote:
> I'd like to know if there's a way to non-destructively reverse L-R channels
> in an ogg vorbis file?
> 
> I've been recording live classical sources, but until tonight haven't
> listened to them on anything with even approaching decent stereo separation.
> 
> Well, you guessed it.  Why the hell are the violins on the right and the
> brass on the left?  Checked my equipment and sure enough, cable was switched.
> 
> Anything I can do with an .ogg file to reverse the channels pre-playback?

It's possible to swap the left/right coupling mapping in the header
(permanently swapping the channels in the file), but there are no
tools to do it.

Monty

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