Relative pitch estimation of multiple instruments

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.

• Type: Conference
• Year: 2009
• Where: ICASSP
• Authors: Gautham J. Mysore, Paris Smaragdis
• Keywords: ICASSP 2009, Relative Pitch, Relative Pitch Estimation, Relative Pitch Track, Signal Processing