Scale detection of transcription remarking zero outputs of comb filters

摘要

In this paper, we propose a method of the automatic transcription system remarking zero outputs of comb filters. It the frequency domain, the comb filter has zero points at the integer multiple of the fundamental frequency. The fundamental frequency and harmonic frequencies of the musical tone can be eliminated by comb filters which are corresponding to the scales. In the method using comb filters which has already pre- sented, 60 comb filters are required, and the processing time is too long to detect the scale of the 32th note.