Problem with copying section from one channel into other, anyone help?

ger-stokes wrote on 4/8/2017, 6:30 AM

Hi all,

Have a problem with soundforge 11, wondering can anyone help me with.

If I'm restoring some bad audio sections from a track / mix or whatever, sometimes I copy a part of the good section from the bottom channel into the bad section in the top channel, or vice versa.

It fixes the problem, but when the audio is played back then in the replaced section, the audio sounds different, like it switches to mono or something? I was wondering if there was any way to fix this issue, like convert the replaces section back into stereo so it's not noticeable when played back?

Has anyone ever come across this issue and knows how to fix it?

Thanks for your help

Comments

emmrecs wrote on 4/8/2017, 8:47 AM

Hi,

Hopefully I'm reading your question correctly but if you are literally copying the content of one channel (e.g. the Left channel) and pasting it at the exact same place into the Right (other) channel, what you are producing is a section of your audio containing TWO "copies" of the Left channel audio and nothing of the Right. So yes, the resulting sound will appear to be "mono" because that is exactly what it is, or more precisely, Dual Mono.

There is no way that you can restore the original stereo signal by your procedure; you have already "thrown away" the content of the Right channel. There are plug-ins which claim to simulate stereo from a mono signal but their effect is artificial and can never reproduce the original sound you had because your Right channel is missing.

The only way to keep your stereo sound is to, ideally, find some method of cleaning the "bad" audio. In what way is it "bad"? Is the badness caused by the way in which it was originally recorded, or has the sound somehow become corrupted since?

If you are able to post somewhere a short section of a file which demonstrates exactly what you are hearing, e.g. to Dropbox or similar and then post the link in this forum, other users will be able to download it and see what, if anything, they can achieve and possibly suggest as a method of improvement. However, you need to be aware that any degree of success is not guaranteed.

I should add that I don't have SoundForge but I do have quite extensive experience of working to restore audio using other software.

Jeff

rraud wrote on 4/12/2017, 9:27 AM

As Jeff stated, that is a normal result when copy/paste the opposite channel. You could look for similar audio (for instance, copy/paste the entire chorus for a song).