Splitting Stereo Channels into seperate tracks

He might not be that familiar with this way of working but it sure would be a good project to learn on (depending on degree of urgency of course)!

>I would have thought the way to do this is to use multitrack view.

In principle I agree, but there's something about the way the original is worded that made me think that perhaps this wasn't the answer - I very much got the impression that the OP wanted to do the editing with separate files in PP, rather than sweetening in Audition. Maybe just me, though...

> The left channel has voice from a radio mic while the right channel is the camera mic with general audio. I need to seperate the two channels so I can use the voice audio when its needed.

I would have thought the way to do this is to use multitrack view.

Put the file on track one and on track two.

Use the "channel mixer" effect on track one and set it so that the left and right outputs are sourced from the left input. Use the same effect on track two and set it so that the left and right outputs are sourced from the right input. You now have the signal from each mic on a totally separate track.

Now use volume envelopes to bring the two sources in and out as required. Mix down when done, whole job done in one pass. (And you could pan the two tracks slightly apart left/right if you wanted).

>I sat down last night and had a rethink on the problem, the method I managed to work out with what I'd learned was to edit the left channel drag the field the entire length and delete it then covert the left over right channel to mono 50/50% left right. Then save it as say Radio Mic then went back to the original and repeated the process with the other channel.

Ooh that sounds painful... the shortcuts are well worth it, especially if the file is large - and I think that I've saved you having to make any more copies of the original file at all!

Thanks for the info...I'll give your suggestions a whirl.

I sat down last night and had a rethink on the problem, the method I managed to work out with what I'd learned was to edit the left channel drag the field the entire length and delete it then covert the left over right channel to mono 50/50% left right. Then save it as say Radio Mic then went back to the original and repeated the process with the other channel.

Seemed to work alright...the voice track is now clean and clear.

So my original question was me wondering if there was a way to do this more simply. But I'll have another read of your replies and give them a try. Since there is more than one way to skin a cat...

Cheers

>Not necessarily. Surely after you have saved it you just do an Undo and have your stereo file back to split out the other half from.

Don't like that! I do have another suggestion though - and that's to do the Ctrl-A Ctrl-L bit, and then go Edit>Copy to New. Then, go back to the original waveform by clicking on it in the files list, and go Ctrl-R and do Copy to New again.

That leaves your original, gives you two mono files to save and doesn't invoke Undo - which I've always regarded as something of a cop-out in this sort of process.

What's most annoying is that the process I described doesn't seem at first glance to be amenable to being scripted... it's failed at every attempt so far, because the concept of 'to New' doesn't appear to be supported in scripting at all, unless I'm missing something.

Not necessarily. Surely after you have saved it you just do an Undo and have your stereo file back to split out the other half from.

>Or you can use the Convert Sample Type (F11) to split out the audio into separate files.

Hmm... you have to have a separate copy of the stereo file in the first place for this to work. If you set Convert Sample Type to change your file to 100% left, it will promptly get rid of 100% right for you!

And using the channel mixer will run you into the same problem - you need at least two copies of your file to start with.

I still think that all things considered, my original approach is the one to go for, simply because it creates what you need without you having to do a load of extra work in the first place.

Or you can use the Convert Sample Type (F11) to split out the audio into separate files. Or the Channel Mixer effect. But remember to do a Save As to keep the original file and have separate newly named ones for the split files.

Probably the easiest and simplest way is to use keystrokes, although you are going to have to save a pair of mono files during the process, which involves a 'save as'.

So, in EV:
Ctrl-A (selects entire file)
Ctrl-L (selects LH channel)
Edit>Copy to new (no keystroke for this, but you could assign one if you needed to)
File>Save As

Then go back to your original file (which we are not destroying, incidentally - good practice) using the Window menu (it will be selectable at the bottom of the list), and repeat the process above, only this time using Ctrl-R instead of Ctrl-L.

I'm sure that there are other ways of doing this as well - I can think of at least one using MV, but if you want to keep process files, the above method is probably the best one to use.