Relative Pitch Estimation of Multiple Instruments

TitleRelative Pitch Estimation of Multiple Instruments
Publication TypeConference Paper
Year of Publication2009
AuthorsMysore, G. J., and P. Smaragdis
Conference NameIEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

We present an algorithm based on probabilistic latent component analysis and employ it for relative pitch estimation of multiple instruments in polyphonic music. A multilayered positive deconvolution is performed concurrently on mixture constant-Q transforms to obtain a relative pitch track and timbral signature for each instrument. Initial experimental results on mixtures of two instruments are quite promising and show high levels of accuracy.