the easiest way is to display both tracks , split stereo tracks , select track with signal , copy, and then select the track without signal and paste , then recombine to stereo track and save as what you want.
I am using XP
----- Original Message -----
From: JD
To: Discussion list for Audacity users
Sent: Saturday, August 04, 2012 3:02 PM
Subject: [Audacity-users] How to replicate left channel in right channel

Hi all,
I have several mp3 audios where only one channel has
audio, the other channel has silence.

Is there a way for me to copy only the channel that has audio
into the clipboard, and paste it into the channel that is all silence?



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