Conference Publication Details
Mandatory Fields
Gainza M.;Lawlor B.;Coyle E.
Proceedings Elmar - International Symposium Electronics in Marine
Multi pitch estimation by using modified IIR comb filters
2005
December
Published
1
()
Optional Fields
Comb filters Pitch detection
233
236
A technique for detecting the pitches of a polyphonic signal of presented. The system utilises modified IIR comb filters, which are generated to ensure that a null (stop band notches) exists at multiples of note frequencies, and that a very flat pass band is present in the remain of the spectrum. Thus, the signal spectrum is not distorted after applying the filters to the audio signal, which is the case when using FIR comb filters. The presented approach improves upon an existing multi pitch detection model based on an FIR comb filter framework.
Grant Details