Pitch estimation for sung songs noticing minimum output of comb filters connected in parallel

摘要

We have proposed a pitch estimation method of musical instrument sounds for transcription using the cascaded twelve comb filters by the elimination of the pitch and its harmonic frequencies. But, owing to the fluctuation of song pitches, it was difficult to estimate the pitch of sung songs by the previous method. This paper proposes a simple pitch estimation method using the parallel connected comb filters. We can know the pitches of a musical sound by detecting the smaller outputs of twelve comb filters connected in parallel. Using this method, we show the pitch estimation results of sung songs.