Apparatus and method for extracting pitch information from...

Details Apparatus and method for extracting pitch information from... Apparatus and method for extracting pitch information from...

2007-04-11

2010-12-28

Lerner, Martin (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S205000, C704S226000

Reexamination Certificate

active

07860708

ABSTRACT:
An apparatus and method for extracting pitch information from a speech signal. The apparatus includes a pilot pitch detector for extracting predicted pitch information from a frame of an input speech signal, a pitch candidate value selector for selecting one or more pitch candidate values from the predicted pitch information according to a predetermined condition, a harmonic-noise region decomposer for decomposing a harmonic-noise region using each of the selected pitch candidate values, a harmonic-noise energy ratio calculator for calculating an energy ratio of each of the decomposed harmonic regions to each of the decomposed noise regions, and a pitch information selector for selecting a pitch candidate value of a harmonic-noise region in which the maximum value among the calculated harmonic-noise energy ratio exists as a pitch value of the input frame of the speech signal.

REFERENCES:
patent: 4731846 (1988-03-01), Secrest et al.
patent: 5189701 (1993-02-01), Jain
patent: 5220108 (1993-06-01), Hashimoto et al.
patent: 5715365 (1998-02-01), Griffin et al.
patent: 5774837 (1998-06-01), Yeldener et al.
patent: 5930747 (1999-07-01), Iijima et al.
patent: 5999897 (1999-12-01), Yeldener
patent: 6047253 (2000-04-01), Nishiguchi et al.
patent: 6456965 (2002-09-01), Yeldener
patent: 6526376 (2003-02-01), Villette et al.
patent: 6587816 (2003-07-01), Chazan et al.
patent: 6662153 (2003-12-01), Kim et al.
patent: 6766288 (2004-07-01), Smith
patent: 7027979 (2006-04-01), Ramabadran
patent: 7092881 (2006-08-01), Aguilar et al.
patent: 7171357 (2007-01-01), Boland
patent: 7191128 (2007-03-01), Sall et al.
patent: 7266493 (2007-09-01), Su et al.
patent: 7286980 (2007-10-01), Wang et al.
patent: 7493254 (2009-02-01), Jung et al.
patent: 7593847 (2009-09-01), Oh
patent: 7672836 (2010-03-01), Lee et al.
patent: 2002/0111798 (2002-08-01), Huang
patent: 2003/0171917 (2003-09-01), Zhu et al.
patent: 2003/0204543 (2003-10-01), Yoon et al.
patent: 2004/0059570 (2004-03-01), Mochinaga et al.
patent: 2004/0133424 (2004-07-01), Ealey et al.
patent: 2005/0149321 (2005-07-01), Kabi et al.
patent: 2007/0010997 (2007-01-01), Kim
patent: 2007/0011001 (2007-01-01), Kim
patent: 2007/0027681 (2007-02-01), Kim
patent: 2007/0106503 (2007-05-01), Kim
patent: 2007/0299658 (2007-12-01), Wang et al.
patent: 2001-177416 (2001-06-01), None
patent: 1019980024790 (1998-07-01), None
patent: 1020020022256 (2002-03-01), None
patent: 1020030070178 (2003-08-01), None
patent: 1020030085354 (2003-11-01), None
patent: 1020040026634 (2004-03-01), None
patent: 1020070007684 (2007-01-01), None
patent: 1020070007697 (2007-01-01), None
patent: 1020070015811 (2007-02-01), None
L.R. Rabiner, “On The Use of Autocorrelation Analysis for Pitch Detection”, IEEE Trans. Acoust., Speech, Sig. Process., ASSP-25, No. 1, pp. 24-33, Feb. 1977.

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