Pitch estimation for musical sounds with percussion sound using resonator-type comb filters

This paper proposes a new pitch estimation method using resonator-type comb filters H(z) = 1/(1- z^-N) for the musical sounds including a percussion sound. We can estimate the pitch by detecting the output having maximum amplitude in twelve resonator-type comb filters connected in parallel. We could obtain the pitch estimation with mean error 3.4 % for artificial musical sounds that are assumed to be the sounds for almost every kind musical instrument.