Note onset detection

Question

I am developing a system as an aid to musicians performing transcription. The aim is to perform automatic music transcription (it does not have to be perfect, as the user wi

Answer 1

this library is centered around audio labeling:

aubio

aubio is a library for audio labelling. Its features include segmenting a sound file before each of its attacks, performing pitch detection, tapping the beat and producing midi streams from live audio. The name aubio comes from 'audio' with a typo: several transcription errors are likely to be found in the results too.

and I have had good luck with it for onset detection and pitch detection. It's in c, but there is swig/python wrappers.

also, the author of the library has a pdf of his thesis on the page, which has great info and background about labeling.