I am editing 12 videos of a conducting class originally recorded on VHS, each about 1 hour in length; I do not have access to the original tapes.
Throughout the recordings, there is a kind of telltale heartbeat: semi-regular but inconsistent; I say heartbeat but I don’t know what it is.
To make matters worse, it’s a conducting course, and the teacher has a metronome running throughout the entire class.
When I applied Noise Reduction to remove the hiss, I found that it did remove the beating some, especially when I applied it twice, however, when the teacher is speaking, the beats remain to be heard quite clearly.
I suppose a Notch Filter might do the trick, but I can’t seem to zero in on the frequency.
As I mentioned, I have about 12 hours of this, so going through the files and individually removing each heartbeat is a daunting proposition.
Does anyone have any suggestions on how I might go about removing these beats?