WO1991006943A3 - Digital speech coder having optimized signal energy parameters - Google Patents

Digital speech coder having optimized signal energy parameters Download PDF

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Publication number
WO1991006943A3
WO1991006943A3 PCT/US1990/005693 US9005693W WO9106943A3 WO 1991006943 A3 WO1991006943 A3 WO 1991006943A3 US 9005693 W US9005693 W US 9005693W WO 9106943 A3 WO9106943 A3 WO 9106943A3
Authority
WO
WIPO (PCT)
Prior art keywords
speech coder
signal energy
digital speech
energy parameters
parameters
Prior art date
Application number
PCT/US1990/005693
Other languages
French (fr)
Other versions
WO1991006943A2 (en
Inventor
Ira Alan Gerson
Mark Antoni Jasiuk
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23676984&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1991006943(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Inc filed Critical Motorola Inc
Priority to BR909007751A priority Critical patent/BR9007751A/en
Priority to AU66031/90A priority patent/AU652348B2/en
Priority to KR1019920700861A priority patent/KR950013371B1/en
Publication of WO1991006943A2 publication Critical patent/WO1991006943A2/en
Publication of WO1991006943A3 publication Critical patent/WO1991006943A3/en

Links

Classifications

    • 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
    • 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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation

Abstract

A speech coder and decoder methodology wherein pitch excitation and codebook excitation source energies (100) are represented by parameters that are readily transmissible with minimal transmission capacity requirements. The parameters are the long term energy value, a short term correction factor which is applied to the long term energy value to match the short term energy, and proportionality factor(s) that specify the relative energy contribution of the excitation sources to the short term energy value (101).
PCT/US1990/005693 1989-10-17 1990-10-09 Digital speech coder having optimized signal energy parameters WO1991006943A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR909007751A BR9007751A (en) 1989-10-17 1990-10-09 PROCESS OF TRANSMITING INFORMATION, AND PROCESS OF RECOVERING INFORMATION
AU66031/90A AU652348B2 (en) 1989-10-17 1990-10-09 Digital speech coder having optimized signal energy parameters
KR1019920700861A KR950013371B1 (en) 1989-10-17 1990-10-09 Transmitting method and reviving method related to gain information of signal sample

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42292789A 1989-10-17 1989-10-17
US422,927 1989-10-17

Publications (2)

Publication Number Publication Date
WO1991006943A2 WO1991006943A2 (en) 1991-05-16
WO1991006943A3 true WO1991006943A3 (en) 1992-08-20

Family

ID=23676984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/005693 WO1991006943A2 (en) 1989-10-17 1990-10-09 Digital speech coder having optimized signal energy parameters

Country Status (11)

Country Link
US (1) US5490230A (en)
EP (1) EP0570365A1 (en)
JP (1) JPH05502517A (en)
KR (1) KR950013371B1 (en)
CN (1) CN1097816C (en)
AU (1) AU652348B2 (en)
BR (1) BR9007751A (en)
CA (1) CA2065731C (en)
IL (1) IL95753A (en)
NZ (1) NZ235702A (en)
WO (1) WO1991006943A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1241358B (en) * 1990-12-20 1994-01-10 Sip VOICE SIGNAL CODING SYSTEM WITH NESTED SUBCODE
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5692101A (en) * 1995-11-20 1997-11-25 Motorola, Inc. Speech coding method and apparatus using mean squared error modifier for selected speech coder parameters using VSELP techniques
FI113571B (en) * 1998-03-09 2004-05-14 Nokia Corp speech Coding
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6104992A (en) * 1998-08-24 2000-08-15 Conexant Systems, Inc. Adaptive gain reduction to produce fixed codebook target signal
US6463407B2 (en) * 1998-11-13 2002-10-08 Qualcomm Inc. Low bit-rate coding of unvoiced segments of speech
GB0005515D0 (en) * 2000-03-08 2000-04-26 Univ Glasgow Improved vector quantization of images
US6754624B2 (en) * 2001-02-13 2004-06-22 Qualcomm, Inc. Codebook re-ordering to reduce undesired packet generation
US7162415B2 (en) * 2001-11-06 2007-01-09 The Regents Of The University Of California Ultra-narrow bandwidth voice coding
US7337110B2 (en) * 2002-08-26 2008-02-26 Motorola, Inc. Structured VSELP codebook for low complexity search
US8688437B2 (en) 2006-12-26 2014-04-01 Huawei Technologies Co., Ltd. Packet loss concealment for speech coding
CN101286320B (en) * 2006-12-26 2013-04-17 华为技术有限公司 Method for gain quantization system for improving speech packet loss repairing quality
US20090094026A1 (en) * 2007-10-03 2009-04-09 Binshi Cao Method of determining an estimated frame energy of a communication
TWI455114B (en) * 2009-10-20 2014-10-01 Fraunhofer Ges Forschung Multi-mode audio codec and celp coding adapted therefore
US8862465B2 (en) 2010-09-17 2014-10-14 Qualcomm Incorporated Determining pitch cycle energy and scaling an excitation signal
US20150173473A1 (en) 2013-12-24 2015-06-25 Katherine Messervy Jenkins Convertible Activity Mat

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4899385A (en) * 1987-06-26 1990-02-06 American Telephone And Telegraph Company Code excited linear predictive vocoder
US4910781A (en) * 1987-06-26 1990-03-20 At&T Bell Laboratories Code excited linear predictive vocoder using virtual searching
US4932061A (en) * 1985-03-22 1990-06-05 U.S. Philips Corporation Multi-pulse excitation linear-predictive speech coder
US4933957A (en) * 1988-03-08 1990-06-12 International Business Machines Corporation Low bit rate voice coding method and system
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4932061A (en) * 1985-03-22 1990-06-05 U.S. Philips Corporation Multi-pulse excitation linear-predictive speech coder
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
US4899385A (en) * 1987-06-26 1990-02-06 American Telephone And Telegraph Company Code excited linear predictive vocoder
US4910781A (en) * 1987-06-26 1990-03-20 At&T Bell Laboratories Code excited linear predictive vocoder using virtual searching
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
US4933957A (en) * 1988-03-08 1990-06-12 International Business Machines Corporation Low bit rate voice coding method and system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Bell Communications Research (Morristown, New Jersey, USA), DANIEL LIN, "High Quality 4800BPS Speech Coding for Real-Time Applications", pp. 1-3. *
IEEE ICASS, p 85, 26-29 March 1985 (Hyatt Regency Hotel, Tampa, FL, USA), SCHROEDER et al., "Code-Excited Linear Prediction (CELP): High-Quality Speech at Very Low Bit Rates", pp. 937-940. *
IEEE Journal on Selected Areas in Communications, Vol. 6, No. 2, February 1988, KROON et al., "A class of Analysis-by-Synthesis predictive coders for High Quality Speech Coding at Rates Between 4.8 and 16 Kbits/s", see Abstract. *
IEEE, April 1987, KROON et al., "Quantization Procedures for the Excitation in CELP coders", pp. 1649-1652. *

Also Published As

Publication number Publication date
WO1991006943A2 (en) 1991-05-16
IL95753A0 (en) 1991-06-30
AU6603190A (en) 1991-05-31
CA2065731C (en) 1995-06-20
BR9007751A (en) 1992-07-21
NZ235702A (en) 1992-12-23
CN1051099A (en) 1991-05-01
IL95753A (en) 1994-11-11
CA2065731A1 (en) 1991-04-18
CN1097816C (en) 2003-01-01
US5490230A (en) 1996-02-06
KR950013371B1 (en) 1995-11-02
EP0570365A4 (en) 1993-04-02
AU652348B2 (en) 1994-08-25
JPH05502517A (en) 1993-04-28
KR920704266A (en) 1992-12-19
EP0570365A1 (en) 1993-11-24

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