Automatic bass line transcription from polyphonic music
Stephen W. Hainsworth, M.D. Macleod · University of Michigan Library Repository · 2001
This paper examines the transcription of just a single instrument from a rich, polyphonic audio stream.The 'bass line' in jazz and rock recordings was chosen for this as a reasonably separable instrument, given several assumptions.An algorithm is presented which performs the following, sequential steps: note onset location; note hypothesis generation; a hypothesis tracker; and finally a hypothesis resolver.Results are presented for examples taken from commercially available CDs which achieve a note recognition rate of 78.7%, using the metric of Kashino and Murase (1998).