how can I tell if a track has been phase inverted

I am trying to isolate vocals from a stereo mix .

I am trying to use the method of phase cancellation .

I have a stereo track stem with everything but the vocals

and I have a stereo track stem which includes the vocals

but somewhere , somehow I have lost the stem that was vocals only .

 

but the phase cancellation method isn't working .

I think it's because I may have already reversed the phase on one or both of these stems ...

so my question is how can i tell if a track is in phase or out of phase ...

Line up the two files you have and zoom way in to compare their waveforms in a section where no vocals are present: they should go up and down at the exact same time. That would mean they're in phase.

Line up the two files you have and zoom way in to compare their waveforms in a section where no vocals are present: they should go up and down at the exact same time. That would mean they're in phase.

thanks David

 

cheers -n - beers

there is a plugin by Waves called IN Phase. it allows you to phase shift 1 side of a stereo mix, phase align overheads on drums, etc.

 

i got it for $29 in the sale. might sort out your problem.

 

another option is to take the stereo mix, and export it as 2 mono files.

then you can do what you like, independently, to each side.

 

analogue desks have phase flip button (on good ones)

 

Buddha