Hello,
What is the best way to subtract a known sample from given audio i.e. extract/reconstruct the original.wav from final.wav when final.wav has been created with commands:
sox knownsample.wav knownsample_delay_gain.wav pad <X> 0 vol <Y>
sox -m original.wav knownsample_delay_gain.wav final.wav
original.wav is not anymore available. knownsample.wav and final.wav are available. pad delay and the vol parameter are known _roughly_ (X =~10ms, Y=~0.1)
regards, Mikk00
PS1, I can reconstruct the original with the process below but this method is very cumbersome:
repeat {
come up with some guessed X and Y
sox knownsample.wav knownsample_delay_gain.wav pad <X> 0 vol -<Y> // is also inverted
sox -m -v 1 original.wav -v 1 knownsample_delay_gain.wav final.wav stat
} until RMS amplitude reported by stat has reached local minimum
I am after more streamlined way to remove known sample from given audio.
PS2, The original problem is a two musical instruments recorded simultaneously in the same space. They have their own mics but the other instrument is audible in each recording. I want to remove the "wrong instrument" from each recording and have clean audio for both instruments.
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