Fred

I think the following works in Audacity. Click the down arrow next to the track name to get the track menu and select Split Stereo Track. Select all the audio on the left track and paste it to the new (separate) right track. You've now got two identical tracks.

Select the drop down again on the top track and this time select Make Stereo Track and it should combine them.

I don't know if there's an easier way - I don't use Audacity that much, depending on what I'm doing I use either Sound Forge or Pro Tools - but I think this does the job.

(Would have been quicker responding, but Mudcat went missing as I submitted - luckily I saved the text)


Mick