[MPlayer-users] Is there a way to swap left and right audio channels (speakers)?

Stefan Lange hoirkman at gmx.de
Tue Jun 15 23:46:48 CEST 2004


JLB wrote:
> I have some incorrectly encoded videos that have the left and right
> channels swapped.
> 
> Without actually moving my speakers every time I want to play such a
> thing... is there a way for me to have mplayer swap the channels while
> playing such a file?
> 

from the mplayer html-docs:

2.3.2.4.6. Extrastereo

This plugin (linearly) increases the difference between left and right 
channels (like the XMMS extrastereo plugin) which gives some sort of 
"live" effect to playback.

Usage:

mplayer media.avi -aop list=extrastereo
mplayer media.avi -aop list=extrastereo:mul=3.45

The default coefficient (mul) is a float number that defaults to 2.5. If 
you set it to 0.0, you will have mono sound (average of both channels). 
If you set it to 1.0, sound will be unchanged, if you set it to -1.0, 
left and right channels will be swapped.

regards,
Stefan


> Thanks.
> 
> --Jessica




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