CA2309921A1 - Method and apparatus for pitch estimation using perception based analysis by synthesis - Google Patents

Method and apparatus for pitch estimation using perception based analysis by synthesis Download PDF

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Publication number
CA2309921A1
CA2309921A1 CA002309921A CA2309921A CA2309921A1 CA 2309921 A1 CA2309921 A1 CA 2309921A1 CA 002309921 A CA002309921 A CA 002309921A CA 2309921 A CA2309921 A CA 2309921A CA 2309921 A1 CA2309921 A1 CA 2309921A1
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Prior art keywords
pitch
item
synthesis
signal
speech signal
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Granted
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CA002309921A
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French (fr)
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CA2309921C (en
Inventor
Suat Yeldener
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Comsat Corp
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Comsat Corporation
Suat Yeldener
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Publication of CA2309921A1 publication Critical patent/CA2309921A1/en
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Publication of CA2309921C publication Critical patent/CA2309921C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L13/00—Speech synthesis; Text to speech systems
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor

Abstract

The present invention provides a method of pitch estimation which utilizes perception based analysis by synthesis for improved pitch estimation over a variety of input speech conditions. Initially, pitch candidates are generated corresponding to a plurality of sub-ranges within a pitch search range (item 2). Then a residual spectrum is determined for a segment of speech (item 4) and a reference speech signal is generated from the residual spectrum using sinusoidal synthesis (item 8) and linear predictive coding (LPC) synthesis (item 9).
A synthetic speech signal is generated for each of the pitch candidates using sinusoidal (item 12) and LPC synthesis (item 13). Finally, the synthetic speech signal for each pitch candidate is compared with the reference residual signal (item 14) to determine an optimal pitch estimate based on a pitch period of a synthetic speech signal that provides a maximum signal to noise ratio.
CA002309921A 1997-11-14 1998-11-16 Method and apparatus for pitch estimation using perception based analysis by synthesis Expired - Fee Related CA2309921C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/970,396 1997-11-14
US08/970,396 US5999897A (en) 1997-11-14 1997-11-14 Method and apparatus for pitch estimation using perception based analysis by synthesis
PCT/US1998/023251 WO1999026234A1 (en) 1997-11-14 1998-11-16 Method and apparatus for pitch estimation using perception based analysis by synthesis

Publications (2)

Publication Number Publication Date
CA2309921A1 true CA2309921A1 (en) 1999-05-27
CA2309921C CA2309921C (en) 2004-06-15

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Family Applications (1)

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CA002309921A Expired - Fee Related CA2309921C (en) 1997-11-14 1998-11-16 Method and apparatus for pitch estimation using perception based analysis by synthesis

Country Status (8)

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US (1) US5999897A (en)
EP (1) EP1031141B1 (en)
KR (1) KR100383377B1 (en)
AU (1) AU746342B2 (en)
CA (1) CA2309921C (en)
DE (1) DE69832195T2 (en)
IL (1) IL136117A (en)
WO (1) WO1999026234A1 (en)

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KR100647336B1 (en) * 2005-11-08 2006-11-23 삼성전자주식회사 Apparatus and method for adaptive time/frequency-based encoding/decoding
KR100735343B1 (en) * 2006-04-11 2007-07-04 삼성전자주식회사 Apparatus and method for extracting pitch information of a speech signal
KR20070115637A (en) * 2006-06-03 2007-12-06 삼성전자주식회사 Method and apparatus for bandwidth extension encoding and decoding
US8935158B2 (en) 2006-12-13 2015-01-13 Samsung Electronics Co., Ltd. Apparatus and method for comparing frames using spectral information of audio signal
KR100860830B1 (en) * 2006-12-13 2008-09-30 삼성전자주식회사 Method and apparatus for estimating spectrum information of audio signal
CN101030374B (en) * 2007-03-26 2011-02-16 北京中星微电子有限公司 Method and apparatus for extracting base sound period
CN102016530B (en) * 2009-02-13 2012-11-14 华为技术有限公司 Method and device for pitch period detection
US8924222B2 (en) 2010-07-30 2014-12-30 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for coding of harmonic signals
US9208792B2 (en) 2010-08-17 2015-12-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for noise injection
US8862465B2 (en) * 2010-09-17 2014-10-14 Qualcomm Incorporated Determining pitch cycle energy and scaling an excitation signal
DE102012000788B4 (en) * 2012-01-17 2013-10-10 Atlas Elektronik Gmbh Method and device for processing waterborne sound signals
EP2685448B1 (en) * 2012-07-12 2018-09-05 Harman Becker Automotive Systems GmbH Engine sound synthesis
GB201713946D0 (en) * 2017-06-16 2017-10-18 Cirrus Logic Int Semiconductor Ltd Earbud speech estimation
US10861484B2 (en) * 2018-12-10 2020-12-08 Cirrus Logic, Inc. Methods and systems for speech detection

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FI95085C (en) * 1992-05-11 1995-12-11 Nokia Mobile Phones Ltd A method for digitally encoding a speech signal and a speech encoder for performing the method
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Also Published As

Publication number Publication date
KR100383377B1 (en) 2003-05-12
EP1031141A1 (en) 2000-08-30
CA2309921C (en) 2004-06-15
WO1999026234B1 (en) 1999-07-01
IL136117A (en) 2004-07-25
IL136117A0 (en) 2001-05-20
EP1031141B1 (en) 2005-11-02
EP1031141A4 (en) 2002-01-02
DE69832195D1 (en) 2005-12-08
DE69832195T2 (en) 2006-08-03
US5999897A (en) 1999-12-07
AU746342B2 (en) 2002-04-18
AU1373899A (en) 1999-06-07
KR20010024639A (en) 2001-03-26
WO1999026234A1 (en) 1999-05-27

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