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afterdawn.com > forums > digital audio > audio > removing left or right channel from an mp3
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Removing left or right channel from an MP3
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jobarr
Newbie
_ 		24. October 2003 @ 21:10 _ Link to this message    Send private message to this user   
I have some MP3s that were encoded at 192k full stereo. The person who did this was kinda stupid because they are from a MONO source, so the left and right channels are the same.

Is there any way to just cut out one of the channels and make them mono mp3s? I know this wouldn't be possible if they were joint-stereo without reencoding, but they are full stereo.

Thanks!
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tigre
Moderator
_ 		25. October 2003 @ 02:25 _ Link to this message    Send private message to this user   
I'm not sure if this is (even theoretically) possible because even in a full stereo file there are some things that are shared between channels (e.g. bit reservoir; bit distribution between channels is flexible etc.). AFAIK there is no program capable of doing this losslessly - you'd need to decompress and recompress to mono loosing quality. You might want to do a search on http://www.hydrogenaudio.org. There are some threads about this topic IIRC - and really knowledgable people.
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AFTERDAWN FORUM RULES: http://forums.afterdawn.com/thread_view.cfm/2487
jobarr
Newbie
_ 		25. October 2003 @ 02:46 _ Link to this message    Send private message to this user   
Ok, thanks....good to see that that site is back!

I thought full stereo MP3s were basically the same as 2 mono mp3s stuck together! :)
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