Presentation 1997/7/18
Constant-Q Comb Filter for Harmonics Extraction : the Impulse Response and its Transfer Function
Kazuki Nishi, Shigeru Ando,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) An optimum filter for extracting harmonics from the mixture sound is derived as a result of the Maximum a Posteriori estimation. It has constant-Q pass-bands located on each harmonic frequencies and therefore assures robustness against the pitch estimation error. It is shown that the impulse response and its transfer function have similar form each other. Simulation results for noise suppression show good performance compared with the conventional comb filter.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Harmonic signal / Comb filter / Constant-Q filter / Maximum a Posteriori estimation / Pitch
Paper # EA97-20
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Conference Information
Committee EA
Conference Date 1997/7/18(1days)
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Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Constant-Q Comb Filter for Harmonics Extraction : the Impulse Response and its Transfer Function
Sub Title (in English)
Keyword(1) Harmonic signal
Keyword(2) Comb filter
Keyword(3) Constant-Q filter
Keyword(4) Maximum a Posteriori estimation
Keyword(5) Pitch
1st Author's Name Kazuki Nishi
1st Author's Affiliation University of Electro-Communications()
2nd Author's Name Shigeru Ando
2nd Author's Affiliation The University of Tokyo
Date 1997/7/18
Paper # EA97-20
Volume (vol) vol.97
Number (no) 179
Page pp.pp.-
#Pages 6
Date of Issue