Optimal Filtering of an Instrument Sound in a Mixed Recording Given Approximate Pitch Prior
Adiel Ben-Shalom, Shlomo Dubnov · University of Michigan Library Repository · 2004
In this paper we show a method for optimal filtering of an instrument in a mixed recording.The filter is based on prior knowledge of the approximate pitch played by the instrument and also on the assumption that the instrument is well described within the harmonic model framework.Pitch priors can be obtained using score alignment methods.Using the pitch priors, we present an algorithm that can be used to filter a single instrument or a voiced singer, subtract an instrument or balance the volume of several instruments.