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ATE298124T1 - Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate - Google Patents

Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate

Info

Publication number
ATE298124T1
ATE298124T1 AT02009467T AT02009467T ATE298124T1 AT E298124 T1 ATE298124 T1 AT E298124T1 AT 02009467 T AT02009467 T AT 02009467T AT 02009467 T AT02009467 T AT 02009467T AT E298124 T1 ATE298124 T1 AT E298124T1
Authority
AT
Austria
Prior art keywords
rate
selecting
vocoder
frames
encoded
Prior art date
Application number
AT02009467T
Other languages
English (en)
Inventor
Andrew P Dejaco
William R Gardner
Original Assignee
Qualcomm 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=23106989&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE298124(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE298124T1 publication Critical patent/ATE298124T1/de

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L25/78—Detection of presence or absence of voice signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Dc Digital Transmission (AREA)
AT02009467T 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate ATE298124T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/288,413 US5742734A (en) 1994-08-10 1994-08-10 Encoding rate selection in a variable rate vocoder

Publications (1)

Publication Number Publication Date
ATE298124T1 true ATE298124T1 (de) 2005-07-15

Family

ID=23106989

Family Applications (5)

Application Number Title Priority Date Filing Date
AT05001938T ATE358871T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
AT02009467T ATE298124T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
AT95929372T ATE235734T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
AT02009465T ATE285620T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
AT06013824T ATE386321T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate bei einem vokoder mit variabler rate

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT05001938T ATE358871T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate

Family Applications After (3)

Application Number Title Priority Date Filing Date
AT95929372T ATE235734T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
AT02009465T ATE285620T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
AT06013824T ATE386321T1 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate bei einem vokoder mit variabler rate

Country Status (20)

Country Link
US (1) US5742734A (de)
EP (6) EP1530201B1 (de)
JP (8) JP3502101B2 (de)
KR (3) KR100455225B1 (de)
CN (5) CN1512488A (de)
AT (5) ATE358871T1 (de)
AU (1) AU711401B2 (de)
BR (2) BR9506036A (de)
CA (3) CA2488918C (de)
DE (5) DE69530066T2 (de)
DK (3) DK0728350T3 (de)
ES (5) ES2240602T5 (de)
FI (5) FI117993B (de)
HK (2) HK1015185A1 (de)
IL (1) IL114874A (de)
MX (1) MX9600920A (de)
PT (3) PT728350E (de)
TW (1) TW277189B (de)
WO (1) WO1996005592A1 (de)
ZA (1) ZA956081B (de)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6389010B1 (en) 1995-10-05 2002-05-14 Intermec Ip Corp. Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
US7924783B1 (en) 1994-05-06 2011-04-12 Broadcom Corporation Hierarchical communications system
TW271524B (de) 1994-08-05 1996-03-01 Qualcomm Inc
US5742734A (en) † 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
US6292476B1 (en) * 1997-04-16 2001-09-18 Qualcomm Inc. Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels
JPH09162837A (ja) * 1995-11-22 1997-06-20 Internatl Business Mach Corp <Ibm> 圧縮方式を動的に変更する通信方法及び装置
JPH09185397A (ja) * 1995-12-28 1997-07-15 Olympus Optical Co Ltd 音声情報記録装置
US5794199A (en) * 1996-01-29 1998-08-11 Texas Instruments Incorporated Method and system for improved discontinuous speech transmission
FI964975A (fi) * 1996-12-12 1998-06-13 Nokia Mobile Phones Ltd Menetelmä ja laite puheen koodaamiseksi
US6510208B1 (en) * 1997-01-20 2003-01-21 Sony Corporation Telephone apparatus with audio recording function and audio recording method telephone apparatus with audio recording function
US6202046B1 (en) 1997-01-23 2001-03-13 Kabushiki Kaisha Toshiba Background noise/speech classification method
US5920834A (en) * 1997-01-31 1999-07-06 Qualcomm Incorporated Echo canceller with talk state determination to control speech processor functional elements in a digital telephone system
DE19742944B4 (de) * 1997-09-29 2008-03-27 Infineon Technologies Ag Verfahren zum Aufzeichnen eines digitalisierten Audiosignals
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6240386B1 (en) 1998-08-24 2001-05-29 Conexant Systems, Inc. Speech codec employing noise classification for noise compensation
US6463407B2 (en) * 1998-11-13 2002-10-08 Qualcomm Inc. Low bit-rate coding of unvoiced segments of speech
US6393074B1 (en) 1998-12-31 2002-05-21 Texas Instruments Incorporated Decoding system for variable-rate convolutionally-coded data sequence
JP2000244384A (ja) * 1999-02-18 2000-09-08 Mitsubishi Electric Corp 移動通信端末装置及び移動通信端末装置における音声符号化レート決定方法
US6397177B1 (en) * 1999-03-10 2002-05-28 Samsung Electronics, Co., Ltd. Speech-encoding rate decision apparatus and method in a variable rate
WO2000069139A2 (en) * 1999-05-10 2000-11-16 Nokia Corporation Header compression
US7127390B1 (en) 2000-02-08 2006-10-24 Mindspeed Technologies, Inc. Rate determination coding
US6898566B1 (en) * 2000-08-16 2005-05-24 Mindspeed Technologies, Inc. Using signal to noise ratio of a speech signal to adjust thresholds for extracting speech parameters for coding the speech signal
US6640208B1 (en) * 2000-09-12 2003-10-28 Motorola, Inc. Voiced/unvoiced speech classifier
US6745012B1 (en) * 2000-11-17 2004-06-01 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive data compression in a wireless telecommunications system
US7120134B2 (en) 2001-02-15 2006-10-10 Qualcomm, Incorporated Reverse link channel architecture for a wireless communication system
EP1470550B1 (de) * 2002-01-30 2008-09-03 Matsushita Electric Industrial Co., Ltd. Verfahren und vorrichtung zur audio-kodierung und -dekodierung
US7657427B2 (en) 2002-10-11 2010-02-02 Nokia Corporation Methods and devices for source controlled variable bit-rate wideband speech coding
KR100841096B1 (ko) * 2002-10-14 2008-06-25 리얼네트웍스아시아퍼시픽 주식회사 음성 코덱에 대한 디지털 오디오 신호의 전처리 방법
US7602722B2 (en) * 2002-12-04 2009-10-13 Nortel Networks Limited Mobile assisted fast scheduling for the reverse link
KR100754439B1 (ko) 2003-01-09 2007-08-31 와이더댄 주식회사 이동 전화상의 체감 음질을 향상시키기 위한 디지털오디오 신호의 전처리 방법
EP3336843B1 (de) * 2004-05-14 2021-06-23 Panasonic Intellectual Property Corporation of America Sprachcodierungsverfahren und sprachcodierungsvorrichtung
CN1295678C (zh) * 2004-05-18 2007-01-17 中国科学院声学研究所 子带自适应谷点降噪系统和方法
KR100657916B1 (ko) 2004-12-01 2006-12-14 삼성전자주식회사 주파수 대역간의 유사도를 이용한 오디오 신호 처리 장치및 방법
US20060224381A1 (en) * 2005-04-04 2006-10-05 Nokia Corporation Detecting speech frames belonging to a low energy sequence
KR100757858B1 (ko) * 2005-09-30 2007-09-11 와이더댄 주식회사 선택적 인코딩 시스템 및 상기 선택적 인코딩 시스템의동작 방법
KR100717058B1 (ko) * 2005-11-28 2007-05-14 삼성전자주식회사 고주파 성분 복원 방법 및 그 장치
CN101213589B (zh) * 2006-01-12 2011-04-27 松下电器产业株式会社 对象声音分析装置和对象声音分析方法
EP1984911A4 (de) * 2006-01-18 2012-03-14 Lg Electronics Inc Vorrichtung und verfahren zum codieren und decodieren eines signals
US8204754B2 (en) 2006-02-10 2012-06-19 Telefonaktiebolaget L M Ericsson (Publ) System and method for an improved voice detector
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
CN100483509C (zh) * 2006-12-05 2009-04-29 华为技术有限公司 声音信号分类方法和装置
CN101217037B (zh) * 2007-01-05 2011-09-14 华为技术有限公司 对音频信号的编码速率进行源控的方法和系统
JPWO2009038115A1 (ja) * 2007-09-21 2011-01-06 日本電気株式会社 音声符号化装置、音声符号化方法及びプログラム
WO2009038170A1 (ja) * 2007-09-21 2009-03-26 Nec Corporation 音声処理装置、音声処理方法、プログラム及び音楽・メロディ配信システム
US20090099851A1 (en) * 2007-10-11 2009-04-16 Broadcom Corporation Adaptive bit pool allocation in sub-band coding
US8560307B2 (en) * 2008-01-28 2013-10-15 Qualcomm Incorporated Systems, methods, and apparatus for context suppression using receivers
CN101335000B (zh) 2008-03-26 2010-04-21 华为技术有限公司 编码的方法及装置
CN102396024A (zh) * 2009-02-16 2012-03-28 韩国电子通信研究院 使用自适应正弦波脉冲编码的用于音频信号的编码/解码方法及其设备
CN102576528A (zh) 2009-10-19 2012-07-11 瑞典爱立信有限公司 用于语音活动检测的检测器和方法
US9047878B2 (en) * 2010-11-24 2015-06-02 JVC Kenwood Corporation Speech determination apparatus and speech determination method
CN102985969B (zh) * 2010-12-14 2014-12-10 松下电器（美国）知识产权公司 编码装置、解码装置和编码方法、解码方法
US8990074B2 (en) 2011-05-24 2015-03-24 Qualcomm Incorporated Noise-robust speech coding mode classification
US8666753B2 (en) * 2011-12-12 2014-03-04 Motorola Mobility Llc Apparatus and method for audio encoding
US9263054B2 (en) * 2013-02-21 2016-02-16 Qualcomm Incorporated Systems and methods for controlling an average encoding rate for speech signal encoding
EP3438979B1 (de) 2013-12-19 2020-06-24 Telefonaktiebolaget LM Ericsson (publ) Schätzung von hintergrundrauschen bei audiosignalen
US9564136B2 (en) 2014-03-06 2017-02-07 Dts, Inc. Post-encoding bitrate reduction of multiple object audio
JP6250140B2 (ja) * 2014-03-24 2017-12-20 日本電信電話株式会社 符号化方法、符号化装置、プログラム、および記録媒体
KR102061316B1 (ko) * 2014-07-28 2019-12-31 니폰 덴신 덴와 가부시끼가이샤 부호화 방법, 장치, 프로그램 및 기록 매체
ES2869141T3 (es) * 2014-07-29 2021-10-25 Ericsson Telefon Ab L M Estimación de ruido de fondo en señales de audio
KR101619293B1 (ko) 2014-11-12 2016-05-11 현대오트론 주식회사 전원 반도체의 제어 방법 및 제어 장치
CN107742521B (zh) * 2016-08-10 2021-08-13 华为技术有限公司 多声道信号的编码方法和编码器
EP3751567B1 (de) 2019-06-10 2022-01-26 Axis AB Verfahren, computerprogramm, codierer und überwachungsvorrichtung
CN110992963B (zh) * 2019-12-10 2023-09-29 腾讯科技（深圳）有限公司 网络通话方法、装置、计算机设备及存储介质
WO2021253235A1 (zh) * 2020-06-16 2021-12-23 华为技术有限公司 语音活动检测方法和装置
CN113611325B (zh) * 2021-04-26 2023-07-04 珠海市杰理科技股份有限公司 基于清浊音实现的语音信号变速方法、装置和音频设备

Family Cites Families (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633107A (en) * 1970-06-04 1972-01-04 Bell Telephone Labor Inc Adaptive signal processor for diversity radio receivers
JPS5017711A (de) * 1973-06-15 1975-02-25
US4076958A (en) * 1976-09-13 1978-02-28 E-Systems, Inc. Signal synthesizer spectrum contour scaler
US4214125A (en) * 1977-01-21 1980-07-22 Forrest S. Mozer Method and apparatus for speech synthesizing
CA1123955A (en) * 1978-03-30 1982-05-18 Tetsu Taguchi Speech analysis and synthesis apparatus
DE3023375C1 (de) * 1980-06-23 1987-12-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
JPS57177197A (en) * 1981-04-24 1982-10-30 Hitachi Ltd Pick-up system for sound section
USRE32580E (en) * 1981-12-01 1988-01-19 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech coder
JPS6011360B2 (ja) * 1981-12-15 1985-03-25 ケイディディ株式会社 音声符号化方式
US4535472A (en) * 1982-11-05 1985-08-13 At&T Bell Laboratories Adaptive bit allocator
DE3276651D1 (en) * 1982-11-26 1987-07-30 Ibm Speech signal coding method and apparatus
DE3370423D1 (en) * 1983-06-07 1987-04-23 Ibm Process for activity detection in a voice transmission system
US4672670A (en) * 1983-07-26 1987-06-09 Advanced Micro Devices, Inc. Apparatus and methods for coding, decoding, analyzing and synthesizing a signal
EP0163829B1 (de) * 1984-03-21 1989-08-23 Nippon Telegraph And Telephone Corporation Sprachsignaleverarbeitungssystem
DE3412430A1 (de) * 1984-04-03 1985-10-03 Nixdorf Computer Ag, 4790 Paderborn Schalteranordnung
EP0167364A1 (de) * 1984-07-06 1986-01-08 AT&T Corp. Sprachpausenbestimmung mit Teilbandkodierung
FR2577084B1 (fr) * 1985-02-01 1987-03-20 Trt Telecom Radio Electr Systeme de bancs de filtres d'analyse et de synthese d'un signal
US4856068A (en) * 1985-03-18 1989-08-08 Massachusetts Institute Of Technology Audio pre-processing methods and apparatus
US4885790A (en) * 1985-03-18 1989-12-05 Massachusetts Institute Of Technology Processing of acoustic waveforms
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
US4827517A (en) * 1985-12-26 1989-05-02 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech processor using arbitrary excitation coding
US4797929A (en) * 1986-01-03 1989-01-10 Motorola, Inc. Word recognition in a speech recognition system using data reduced word templates
CA1299750C (en) * 1986-01-03 1992-04-28 Ira Alan Gerson Optimal method of data reduction in a speech recognition system
US4899384A (en) * 1986-08-25 1990-02-06 Ibm Corporation Table controlled dynamic bit allocation in a variable rate sub-band speech coder
US4771465A (en) * 1986-09-11 1988-09-13 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech sinusoidal vocoder with transmission of only subset of harmonics
US4797925A (en) * 1986-09-26 1989-01-10 Bell Communications Research, Inc. Method for coding speech at low bit rates
US4903301A (en) * 1987-02-27 1990-02-20 Hitachi, Ltd. Method and system for transmitting variable rate speech signal
US5054072A (en) * 1987-04-02 1991-10-01 Massachusetts Institute Of Technology Coding of acoustic waveforms
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4890327A (en) * 1987-06-03 1989-12-26 Itt Corporation Multi-rate digital voice coder apparatus
US4899385A (en) * 1987-06-26 1990-02-06 American Telephone And Telegraph Company Code excited linear predictive vocoder
CA1337217C (en) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Speech coding
JPS6491200A (en) * 1987-10-02 1989-04-10 Fujitsu Ltd Voice analysis system and voice synthesization system
US4852179A (en) * 1987-10-05 1989-07-25 Motorola, Inc. Variable frame rate, fixed bit rate vocoding method
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
US4897832A (en) † 1988-01-18 1990-01-30 Oki Electric Industry Co., Ltd. Digital speech interpolation system and speech detector
DE3871369D1 (de) * 1988-03-08 1992-06-25 Ibm Verfahren und einrichtung zur sprachkodierung mit niedriger datenrate.
DE3883519T2 (de) * 1988-03-08 1994-03-17 Ibm Verfahren und Einrichtung zur Sprachkodierung mit mehreren Datenraten.
ES2047664T3 (es) * 1988-03-11 1994-03-01 British Telecomm Deteccion de actividad de voz.
US5023910A (en) * 1988-04-08 1991-06-11 At&T Bell Laboratories Vector quantization in a harmonic speech coding arrangement
US4864561A (en) * 1988-06-20 1989-09-05 American Telephone And Telegraph Company Technique for improved subjective performance in a communication system using attenuated noise-fill
JPH0783315B2 (ja) * 1988-09-26 1995-09-06 富士通株式会社 可変レート音声信号符号化方式
CA1321645C (en) * 1988-09-28 1993-08-24 Akira Ichikawa Method and system for voice coding based on vector quantization
JP3033060B2 (ja) * 1988-12-22 2000-04-17 国際電信電話株式会社 音声予測符号化・復号化方式
US5222189A (en) * 1989-01-27 1993-06-22 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
EP0392126B1 (de) * 1989-04-11 1994-07-20 International Business Machines Corporation Verfahren zur schnellen Bestimmung der Grundfrequenz in Sprachcodierern mit langfristiger Prädiktion
JPH0754434B2 (ja) * 1989-05-08 1995-06-07 松下電器産業株式会社 音声認識装置
US5060269A (en) * 1989-05-18 1991-10-22 General Electric Company Hybrid switched multi-pulse/stochastic speech coding technique
GB2235354A (en) * 1989-08-16 1991-02-27 Philips Electronic Associated Speech coding/encoding using celp
US5054075A (en) * 1989-09-05 1991-10-01 Motorola, Inc. Subband decoding method and apparatus
US5185800A (en) * 1989-10-13 1993-02-09 Centre National D'etudes Des Telecommunications Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
US5307441A (en) † 1989-11-29 1994-04-26 Comsat Corporation Wear-toll quality 4.8 kbps speech codec
JP3004664B2 (ja) * 1989-12-21 2000-01-31 株式会社東芝 可変レート符号化方法
JP2861238B2 (ja) * 1990-04-20 1999-02-24 ソニー株式会社 ディジタル信号符号化方法
JP2751564B2 (ja) * 1990-05-25 1998-05-18 ソニー株式会社 ディジタル信号符号化装置
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JPH04100099A (ja) * 1990-08-20 1992-04-02 Nippon Telegr & Teleph Corp <Ntt> 音声検出装置
JPH04157817A (ja) * 1990-10-20 1992-05-29 Fujitsu Ltd 可変レート符号化装置
US5206884A (en) * 1990-10-25 1993-04-27 Comsat Transform domain quantization technique for adaptive predictive coding
JP2906646B2 (ja) * 1990-11-09 1999-06-21 松下電器産業株式会社 音声帯域分割符号化装置
US5317672A (en) * 1991-03-05 1994-05-31 Picturetel Corporation Variable bit rate speech encoder
KR940001861B1 (ko) * 1991-04-12 1994-03-09 삼성전자 주식회사 오디오 대역신호의 음성/음악 판별장치
US5187745A (en) * 1991-06-27 1993-02-16 Motorola, Inc. Efficient codebook search for CELP vocoders
DE69233397T2 (de) * 1991-06-11 2005-08-11 Qualcomm, Inc., San Diego Vorrichtung und Methode zur Maskierung von Fehlern in Datenrahmen
JP2705377B2 (ja) * 1991-07-31 1998-01-28 松下電器産業株式会社 帯域分割符号化方法
EP0525774B1 (de) * 1991-07-31 1997-02-26 Matsushita Electric Industrial Co., Ltd. Verfahren und Einrichtung zur Kodierung eines digitalen Audiosignals
US5410632A (en) † 1991-12-23 1995-04-25 Motorola, Inc. Variable hangover time in a voice activity detector
JP3088838B2 (ja) * 1992-04-09 2000-09-18 シャープ株式会社 音楽検出回路及び該回路を用いた音声信号入力装置
JP2976701B2 (ja) * 1992-06-24 1999-11-10 日本電気株式会社 量子化ビット数割当方法
US5341456A (en) * 1992-12-02 1994-08-23 Qualcomm Incorporated Method for determining speech encoding rate in a variable rate vocoder
US5457769A (en) * 1993-03-30 1995-10-10 Earmark, Inc. Method and apparatus for detecting the presence of human voice signals in audio signals
US5644596A (en) † 1994-02-01 1997-07-01 Qualcomm Incorporated Method and apparatus for frequency selective adaptive filtering
US5742734A (en) † 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
US6134215A (en) 1996-04-02 2000-10-17 Qualcomm Incorpoated Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel

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