I have recorded an amateur musical, with a single microphone next to the stage, picking up vocals and background “karaoke" music played from a CD (besides general noises, coughs, rumbles and all sort of fun stuff).
What I am trying to do is to get a vocal-only (plus fun stuff, I know) track by “subtracting” the CD tracks from the stage recording.
I have a track with the stage recording and another one with the songs played during the peformance.
I tried creating a stereo track with the stage recording in one side and the CD music in the other and using the Subtract mode in Stereo flip to remove the background music, but actually the background music was still there, almost as before. I have aligned the CD music to the stage recording as well as I could.
I guess it would also be possible to do some type of cancellation by moving the CD music by some milliseconds, but I wouldn’t even know where to start.
Do you think it is possible to get that Vocal-only track or shall I just give up?
Thanks in advance