alt Hacker NewsThe fact that you can do it with spectral analysis libraries, no LLM required.
This is much easier than source separation. It would be different if I were asking to isolate a violin from a viola or another violin, you’d have to get much more specific about the timbre of each instrument and potentially understand what each instruments part was.
But a vibration made from a string makes a very unique wave that is easy to pick out in a file.
Are you making this up? What spectral analysis libraries or tools?
String instruments create similar harmonic series to horns, winds, and voice (because everything is a string in some dimension) and the major differences are in the spectral envelope, something that STFT tools are just ok at approximating because of the time/frequency tradeoff (aka: the uncertainty principle).
This is a very hard problem "in theory" to me, and I'm just above casually versed in it.