NDLI: Musical pitch tracking using internal model control based frequency cancellation

Content Provider	IEEE Xplore Digital Library
Author	Zhenyu Zhao Brown, L.J.
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada (Zhenyu Zhao; Brown, L.J.)
Abstract	A new method for pitch estimation of musical sound signal is presented in this paper. This method is based on the behavior of a notch filter in an error feedback system, and was first developed for identification of periodic signals with uncertain frequency. Unlike many previous methods, which are based on frequency representation in time window of the music signal, our algorithm is based on instantaneous 'measurements' of the frequency in real-time. Because of the high accuracy of the frequencies and the magnitudes we obtained, this method may also be used to verify the types of the instruments and even the vibratos. Simulation results show that the presented approach operates reliably in monophonic case with a highly accurate frequency estimation. The same method has been extended to the polyphonic setting. At present, we are restricting input with a relatively strong fundamental frequency. This paper is a progress report, we hope to extend our work greatly in the future.
Sponsorship	Honeywell Lab. Xerox Nat. Instruments Math Works
Starting Page	5544
Ending Page	5548
File Size	379745
Page Count	5
File Format	PDF
ISBN	0780379241
ISSN	01912216
DOI	10.1109/CDC.2003.1272520
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiple signal classification Music Autocorrelation Frequency domain analysis Signal processing Computer errors Instruments Artificial intelligence Feedback control Programmable control
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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