DE69935520D1 - Sprachkodierer und Verfahren für einen Sprachkodierer - Google Patents

Sprachkodierer und Verfahren für einen Sprachkodierer

Info

Publication number
DE69935520D1
DE69935520D1 DE69935520T DE69935520T DE69935520D1 DE 69935520 D1 DE69935520 D1 DE 69935520D1 DE 69935520 T DE69935520 T DE 69935520T DE 69935520 T DE69935520 T DE 69935520T DE 69935520 D1 DE69935520 D1 DE 69935520D1
Authority
DE
Germany
Prior art keywords
speech coder
coder
speech
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69935520T
Other languages
German (de)
English (en)
Inventor
Jes Thyssen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mindspeed Technologies LLC
Original Assignee
Mindspeed Technologies LLC
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
Application filed by Mindspeed Technologies LLC filed Critical Mindspeed Technologies LLC
Application granted granted Critical
Publication of DE69935520D1 publication Critical patent/DE69935520D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • 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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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
    • 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
    • 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
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • 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
    • G10L2019/0007—Codebook element generation
    • 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
DE69935520T 1998-08-24 1999-08-24 Sprachkodierer und Verfahren für einen Sprachkodierer Expired - Lifetime DE69935520D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9756998P 1998-08-24 1998-08-24
US09/156,648 US6480822B2 (en) 1998-08-24 1998-09-18 Low complexity random codebook structure
PCT/US1999/019135 WO2000011655A1 (en) 1998-08-24 1999-08-24 Low complexity random codebook structure

Publications (1)

Publication Number Publication Date
DE69935520D1 true DE69935520D1 (de) 2007-04-26

Family

ID=26793423

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69935520T Expired - Lifetime DE69935520D1 (de) 1998-08-24 1999-08-24 Sprachkodierer und Verfahren für einen Sprachkodierer

Country Status (6)

Country Link
US (2) US6480822B2 (US06813602-20041102-M00028.png)
EP (1) EP1105871B1 (US06813602-20041102-M00028.png)
DE (1) DE69935520D1 (US06813602-20041102-M00028.png)
HK (1) HK1034347A1 (US06813602-20041102-M00028.png)
TW (1) TW440814B (US06813602-20041102-M00028.png)
WO (1) WO2000011655A1 (US06813602-20041102-M00028.png)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8396328B2 (en) * 2001-05-04 2013-03-12 Legend3D, Inc. Minimal artifact image sequence depth enhancement system and method
US6480822B2 (en) * 1998-08-24 2002-11-12 Conexant Systems, Inc. Low complexity random codebook structure
US7072832B1 (en) 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
EP1959435B1 (en) * 1999-08-23 2009-12-23 Panasonic Corporation Speech encoder
US7315815B1 (en) 1999-09-22 2008-01-01 Microsoft Corporation LPC-harmonic vocoder with superframe structure
JP4367808B2 (ja) * 1999-12-03 2009-11-18 富士通株式会社 音声データ圧縮・解凍装置及び方法
EP1796083B1 (en) * 2000-04-24 2009-01-07 Qualcomm Incorporated Method and apparatus for predictively quantizing voiced speech
US6778953B1 (en) * 2000-06-02 2004-08-17 Agere Systems Inc. Method and apparatus for representing masked thresholds in a perceptual audio coder
JP4538705B2 (ja) * 2000-08-02 2010-09-08 ソニー株式会社 ディジタル信号処理方法、学習方法及びそれらの装置並びにプログラム格納媒体
JP4596197B2 (ja) * 2000-08-02 2010-12-08 ソニー株式会社 ディジタル信号処理方法、学習方法及びそれらの装置並びにプログラム格納媒体
US7133823B2 (en) * 2000-09-15 2006-11-07 Mindspeed Technologies, Inc. System for an adaptive excitation pattern for speech coding
US6947888B1 (en) * 2000-10-17 2005-09-20 Qualcomm Incorporated Method and apparatus for high performance low bit-rate coding of unvoiced speech
US9286941B2 (en) 2001-05-04 2016-03-15 Legend3D, Inc. Image sequence enhancement and motion picture project management system
US8897596B1 (en) 2001-05-04 2014-11-25 Legend3D, Inc. System and method for rapid image sequence depth enhancement with translucent elements
US8401336B2 (en) 2001-05-04 2013-03-19 Legend3D, Inc. System and method for rapid image sequence depth enhancement with augmented computer-generated elements
US6941263B2 (en) * 2001-06-29 2005-09-06 Microsoft Corporation Frequency domain postfiltering for quality enhancement of coded speech
US7512535B2 (en) * 2001-10-03 2009-03-31 Broadcom Corporation Adaptive postfiltering methods and systems for decoding speech
KR100438175B1 (ko) * 2001-10-23 2004-07-01 엘지전자 주식회사 코드북 검색방법
US7054807B2 (en) * 2002-11-08 2006-05-30 Motorola, Inc. Optimizing encoder for efficiently determining analysis-by-synthesis codebook-related parameters
DE10252070B4 (de) * 2002-11-08 2010-07-15 Palm, Inc. (n.d.Ges. d. Staates Delaware), Sunnyvale Kommunikationsendgerät mit parametrierter Bandbreitenerweiterung und Verfahren zur Bandbreitenerweiterung dafür
WO2004090870A1 (ja) 2003-04-04 2004-10-21 Kabushiki Kaisha Toshiba 広帯域音声を符号化または復号化するための方法及び装置
EP1675908B1 (en) * 2003-10-07 2008-12-17 Coloplast A/S Composition useful as an adhesive ans use of such a composition
FI118704B (fi) * 2003-10-07 2008-02-15 Nokia Corp Menetelmä ja laite lähdekoodauksen tekemiseksi
US7283587B2 (en) * 2003-12-18 2007-10-16 Intel Corporation Distortion measurement
US8103772B2 (en) * 2003-12-24 2012-01-24 Sap Aktiengesellschaft Cluster extension in distributed systems using tree method
US7536298B2 (en) * 2004-03-15 2009-05-19 Intel Corporation Method of comfort noise generation for speech communication
US7668712B2 (en) 2004-03-31 2010-02-23 Microsoft Corporation Audio encoding and decoding with intra frames and adaptive forward error correction
FI119533B (fi) * 2004-04-15 2008-12-15 Nokia Corp Audiosignaalien koodaus
US7860710B2 (en) * 2004-09-22 2010-12-28 Texas Instruments Incorporated Methods, devices and systems for improved codebook search for voice codecs
US7788091B2 (en) * 2004-09-22 2010-08-31 Texas Instruments Incorporated Methods, devices and systems for improved pitch enhancement and autocorrelation in voice codecs
SE528213C3 (sv) * 2004-09-30 2006-10-31 Ericsson Telefon Ab L M Förfaranden och arrangemang för adaptiva trösklar vid val av kodek
SE0402372D0 (sv) * 2004-09-30 2004-09-30 Ericsson Telefon Ab L M Signal coding
US7475103B2 (en) 2005-03-17 2009-01-06 Qualcomm Incorporated Efficient check node message transform approximation for LDPC decoder
US7596491B1 (en) * 2005-04-19 2009-09-29 Texas Instruments Incorporated Layered CELP system and method
US7177804B2 (en) 2005-05-31 2007-02-13 Microsoft Corporation Sub-band voice codec with multi-stage codebooks and redundant coding
US7830921B2 (en) * 2005-07-11 2010-11-09 Lg Electronics Inc. Apparatus and method of encoding and decoding audio signal
US7571094B2 (en) * 2005-09-21 2009-08-04 Texas Instruments Incorporated Circuits, processes, devices and systems for codebook search reduction in speech coders
US8271274B2 (en) * 2006-02-22 2012-09-18 France Telecom Coding/decoding of a digital audio signal, in CELP technique
US8032370B2 (en) * 2006-05-09 2011-10-04 Nokia Corporation Method, apparatus, system and software product for adaptation of voice activity detection parameters based on the quality of the coding modes
US7461106B2 (en) 2006-09-12 2008-12-02 Motorola, Inc. Apparatus and method for low complexity combinatorial coding of signals
US8447594B2 (en) * 2006-11-29 2013-05-21 Loquendo S.P.A. Multicodebook source-dependent coding and decoding
US8688437B2 (en) 2006-12-26 2014-04-01 Huawei Technologies Co., Ltd. Packet loss concealment for speech coding
EP2132713A1 (en) * 2007-04-04 2009-12-16 Telefonaktiebolaget LM Ericsson (PUBL) Vector-based image processing
US8126707B2 (en) * 2007-04-05 2012-02-28 Texas Instruments Incorporated Method and system for speech compression
CN100530357C (zh) * 2007-07-11 2009-08-19 华为技术有限公司 固定码书搜索方法及搜索器
US8576096B2 (en) * 2007-10-11 2013-11-05 Motorola Mobility Llc Apparatus and method for low complexity combinatorial coding of signals
US20110026581A1 (en) * 2007-10-16 2011-02-03 Nokia Corporation Scalable Coding with Partial Eror Protection
US8209190B2 (en) * 2007-10-25 2012-06-26 Motorola Mobility, Inc. Method and apparatus for generating an enhancement layer within an audio coding system
CN100578619C (zh) * 2007-11-05 2010-01-06 华为技术有限公司 编码方法和编码器
US20090234642A1 (en) * 2008-03-13 2009-09-17 Motorola, Inc. Method and Apparatus for Low Complexity Combinatorial Coding of Signals
US8639519B2 (en) * 2008-04-09 2014-01-28 Motorola Mobility Llc Method and apparatus for selective signal coding based on core encoder performance
KR20090122143A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
US20090319263A1 (en) * 2008-06-20 2009-12-24 Qualcomm Incorporated Coding of transitional speech frames for low-bit-rate applications
US20090319261A1 (en) * 2008-06-20 2009-12-24 Qualcomm Incorporated Coding of transitional speech frames for low-bit-rate applications
US8768690B2 (en) * 2008-06-20 2014-07-01 Qualcomm Incorporated Coding scheme selection for low-bit-rate applications
US8219408B2 (en) * 2008-12-29 2012-07-10 Motorola Mobility, Inc. Audio signal decoder and method for producing a scaled reconstructed audio signal
US8175888B2 (en) 2008-12-29 2012-05-08 Motorola Mobility, Inc. Enhanced layered gain factor balancing within a multiple-channel audio coding system
US8140342B2 (en) * 2008-12-29 2012-03-20 Motorola Mobility, Inc. Selective scaling mask computation based on peak detection
US8200496B2 (en) * 2008-12-29 2012-06-12 Motorola Mobility, Inc. Audio signal decoder and method for producing a scaled reconstructed audio signal
CA2862715C (en) 2009-10-20 2017-10-17 Ralf Geiger Multi-mode audio codec and celp coding adapted therefore
US8149144B2 (en) * 2009-12-31 2012-04-03 Motorola Mobility, Inc. Hybrid arithmetic-combinatorial encoder
US8423355B2 (en) * 2010-03-05 2013-04-16 Motorola Mobility Llc Encoder for audio signal including generic audio and speech frames
US8428936B2 (en) * 2010-03-05 2013-04-23 Motorola Mobility Llc Decoder for audio signal including generic audio and speech frames
BR112012025347B1 (pt) * 2010-04-14 2020-06-09 Voiceage Corp dispositivo de codificação de livro-código de inovação combinado, codificador de celp, livro-código de inovação combinado, decodificador de celp, método de codificação de livro-código de inovação combinado e método de decodificação de livro-código de inovação combinado
RU2445719C2 (ru) * 2010-04-21 2012-03-20 Государственное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) Способ улучшения восприятия синтезированной речи при реализации процедуры анализа через синтез в вокодерах с линейным предсказанием
US8542766B2 (en) * 2010-05-04 2013-09-24 Samsung Electronics Co., Ltd. Time alignment algorithm for transmitters with EER/ET amplifiers and others
US8730232B2 (en) 2011-02-01 2014-05-20 Legend3D, Inc. Director-style based 2D to 3D movie conversion system and method
US9288476B2 (en) 2011-02-17 2016-03-15 Legend3D, Inc. System and method for real-time depth modification of stereo images of a virtual reality environment
US9241147B2 (en) 2013-05-01 2016-01-19 Legend3D, Inc. External depth map transformation method for conversion of two-dimensional images to stereoscopic images
US9282321B2 (en) 2011-02-17 2016-03-08 Legend3D, Inc. 3D model multi-reviewer system
US9407904B2 (en) 2013-05-01 2016-08-02 Legend3D, Inc. Method for creating 3D virtual reality from 2D images
US9070356B2 (en) * 2012-04-04 2015-06-30 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal
US9263053B2 (en) * 2012-04-04 2016-02-16 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal
US9129600B2 (en) 2012-09-26 2015-09-08 Google Technology Holdings LLC Method and apparatus for encoding an audio signal
US9007365B2 (en) 2012-11-27 2015-04-14 Legend3D, Inc. Line depth augmentation system and method for conversion of 2D images to 3D images
US9547937B2 (en) 2012-11-30 2017-01-17 Legend3D, Inc. Three-dimensional annotation system and method
RU2618919C2 (ru) * 2013-01-29 2017-05-12 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ для синтезирования аудиосигнала, декодер, кодер, система и компьютерная программа
US9007404B2 (en) 2013-03-15 2015-04-14 Legend3D, Inc. Tilt-based look around effect image enhancement method
US9438878B2 (en) 2013-05-01 2016-09-06 Legend3D, Inc. Method of converting 2D video to 3D video using 3D object models
ES2635027T3 (es) 2013-06-21 2017-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Aparato y método para el desvanecimiento de señales mejorado para sistemas de codificación de audio cambiados durante el ocultamiento de errores
EP2916319A1 (en) 2014-03-07 2015-09-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept for encoding of information
US9361899B2 (en) * 2014-07-02 2016-06-07 Nuance Communications, Inc. System and method for compressed domain estimation of the signal to noise ratio of a coded speech signal
US9609307B1 (en) 2015-09-17 2017-03-28 Legend3D, Inc. Method of converting 2D video to 3D video using machine learning
CN105790854B (zh) * 2016-03-01 2018-11-20 济南中维世纪科技有限公司 一种基于声波的短距离数据传输方法及装置
CN110660402B (zh) * 2018-06-29 2022-03-29 华为技术有限公司 立体声信号编码过程中确定加权系数的方法和装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK558687D0 (da) 1987-10-26 1987-10-26 Helge Wahlgreen Pickupsystem til musikinstrumenter
US5307441A (en) * 1989-11-29 1994-04-26 Comsat Corporation Wear-toll quality 4.8 kbps speech codec
CA2068526C (en) * 1990-09-14 1997-02-25 Tomohiko Taniguchi Speech coding system
ES2093110T3 (es) * 1990-09-28 1996-12-16 Philips Electronics Nv Un metodo y un sistema para codificar señales analogicas.
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
FI98104C (fi) 1991-05-20 1997-04-10 Nokia Mobile Phones Ltd Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi
US5396576A (en) * 1991-05-22 1995-03-07 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods using adaptive and random code books
EP1763020A3 (en) * 1991-06-11 2010-09-29 Qualcomm Incorporated Variable rate vocoder
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5734789A (en) * 1992-06-01 1998-03-31 Hughes Electronics Voiced, unvoiced or noise modes in a CELP vocoder
FR2729244B1 (fr) * 1995-01-06 1997-03-28 Matra Communication Procede de codage de parole a analyse par synthese
JP3196595B2 (ja) * 1995-09-27 2001-08-06 日本電気株式会社 音声符号化装置
US5819213A (en) 1996-01-31 1998-10-06 Kabushiki Kaisha Toshiba Speech encoding and decoding with pitch filter range unrestricted by codebook range and preselecting, then increasing, search candidates from linear overlap codebooks
CA2213909C (en) 1996-08-26 2002-01-22 Nec Corporation High quality speech coder at low bit rates
US6055496A (en) * 1997-03-19 2000-04-25 Nokia Mobile Phones, Ltd. Vector quantization in celp speech coder
US6480822B2 (en) * 1998-08-24 2002-11-12 Conexant Systems, Inc. Low complexity random codebook structure
US6424945B1 (en) * 1999-12-15 2002-07-23 Nokia Corporation Voice packet data network browsing for mobile terminals system and method using a dual-mode wireless connection

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US6813602B2 (en) 2004-11-02
US20030097258A1 (en) 2003-05-22
US6480822B2 (en) 2002-11-12
WO2000011655A1 (en) 2000-03-02
EP1105871A1 (en) 2001-06-13
HK1034347A1 (en) 2001-10-19
WO2000011655A9 (en) 2000-08-10
US20020138256A1 (en) 2002-09-26

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