DE602004021438D1 - Sprachdekodierung - Google Patents

Sprachdekodierung

Info

Publication number
DE602004021438D1
DE602004021438D1 DE602004021438T DE602004021438T DE602004021438D1 DE 602004021438 D1 DE602004021438 D1 DE 602004021438D1 DE 602004021438 T DE602004021438 T DE 602004021438T DE 602004021438 T DE602004021438 T DE 602004021438T DE 602004021438 D1 DE602004021438 D1 DE 602004021438D1
Authority
DE
Germany
Prior art keywords
bits
bit stream
voicing
pitch
information
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
DE602004021438T
Other languages
German (de)
English (en)
Inventor
John C Hardwick
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.)
Digital Voice Systems Inc
Original Assignee
Digital Voice Systems 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
Application filed by Digital Voice Systems Inc filed Critical Digital Voice Systems Inc
Publication of DE602004021438D1 publication Critical patent/DE602004021438D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
  • Led Device Packages (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE602004021438T 2003-04-01 2004-03-26 Sprachdekodierung Expired - Lifetime DE602004021438D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/402,938 US8359197B2 (en) 2003-04-01 2003-04-01 Half-rate vocoder

Publications (1)

Publication Number Publication Date
DE602004021438D1 true DE602004021438D1 (de) 2009-07-16

Family

ID=32850558

Family Applications (2)

Application Number Title Priority Date Filing Date
DE602004021438T Expired - Lifetime DE602004021438D1 (de) 2003-04-01 2004-03-26 Sprachdekodierung
DE602004003610T Expired - Lifetime DE602004003610T2 (de) 2003-04-01 2004-03-26 Halbrätiger Vocoder

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE602004003610T Expired - Lifetime DE602004003610T2 (de) 2003-04-01 2004-03-26 Halbrätiger Vocoder

Country Status (6)

Country Link
US (2) US8359197B2 (https=)
EP (2) EP1748425B1 (https=)
JP (1) JP2004310088A (https=)
AT (2) ATE433183T1 (https=)
CA (1) CA2461704C (https=)
DE (2) DE602004021438D1 (https=)

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US8359197B2 (en) * 2003-04-01 2013-01-22 Digital Voice Systems, Inc. Half-rate vocoder
US8135362B2 (en) * 2005-03-07 2012-03-13 Symstream Technology Holdings Pty Ltd Symbol stream virtual radio organism method and apparatus
FR2891100B1 (fr) * 2005-09-22 2008-10-10 Georges Samake Codec audio utilisant la transformation de fourier rapide, le recouvrement partiel et une decomposition en deux plans basee sur l'energie.
CN1964244B (zh) * 2005-11-08 2010-04-07 厦门致晟科技有限公司 一种用声码器收发数字信号的方法
US20080243518A1 (en) * 2006-11-16 2008-10-02 Alexey Oraevsky System And Method For Compressing And Reconstructing Audio Files
US8036886B2 (en) 2006-12-22 2011-10-11 Digital Voice Systems, Inc. Estimation of pulsed speech model parameters
JP5185390B2 (ja) * 2007-10-20 2013-04-17 エアビクティ インコーポレイテッド 車載システムによる無線帯域内シグナリング方法及びシステム
KR20100134623A (ko) * 2008-03-04 2010-12-23 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
US8594138B2 (en) 2008-09-15 2013-11-26 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US8265020B2 (en) * 2008-11-12 2012-09-11 Microsoft Corporation Cognitive error control coding for channels with memory
GB2466673B (en) * 2009-01-06 2012-11-07 Skype Quantization
GB2466670B (en) * 2009-01-06 2012-11-14 Skype Speech encoding
GB2466669B (en) * 2009-01-06 2013-03-06 Skype Speech coding
GB2466671B (en) * 2009-01-06 2013-03-27 Skype Speech encoding
GB2466674B (en) 2009-01-06 2013-11-13 Skype Speech coding
GB2466675B (en) * 2009-01-06 2013-03-06 Skype Speech coding
GB2466672B (en) * 2009-01-06 2013-03-13 Skype Speech coding
US8036600B2 (en) 2009-04-27 2011-10-11 Airbiquity, Inc. Using a bluetooth capable mobile phone to access a remote network
US8418039B2 (en) 2009-08-03 2013-04-09 Airbiquity Inc. Efficient error correction scheme for data transmission in a wireless in-band signaling system
US8452606B2 (en) * 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates
US8249865B2 (en) * 2009-11-23 2012-08-21 Airbiquity Inc. Adaptive data transmission for a digital in-band modem operating over a voice channel
EP2375409A1 (en) 2010-04-09 2011-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction
KR101247652B1 (ko) * 2011-08-30 2013-04-01 광주과학기술원 잡음 제거 장치 및 방법
US8848825B2 (en) 2011-09-22 2014-09-30 Airbiquity Inc. Echo cancellation in wireless inband signaling modem
US9275644B2 (en) * 2012-01-20 2016-03-01 Qualcomm Incorporated Devices for redundant frame coding and decoding
EP3671738B1 (en) * 2013-04-05 2024-06-05 Dolby International AB Audio encoder and decoder
US9418671B2 (en) * 2013-08-15 2016-08-16 Huawei Technologies Co., Ltd. Adaptive high-pass post-filter
US11270714B2 (en) * 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation
US12254895B2 (en) * 2021-07-02 2025-03-18 Digital Voice Systems, Inc. Detecting and compensating for the presence of a speaker mask in a speech signal
US11990144B2 (en) 2021-07-28 2024-05-21 Digital Voice Systems, Inc. Reducing perceived effects of non-voice data in digital speech
US12451151B2 (en) 2022-04-08 2025-10-21 Digital Voice Systems, Inc. Tone frame detector for digital speech
US12462814B2 (en) 2023-10-06 2025-11-04 Digital Voice Systems, Inc. Bit error correction in digital speech

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US7970606B2 (en) 2002-11-13 2011-06-28 Digital Voice Systems, Inc. Interoperable vocoder
US7634399B2 (en) 2003-01-30 2009-12-15 Digital Voice Systems, Inc. Voice transcoder
US8359197B2 (en) * 2003-04-01 2013-01-22 Digital Voice Systems, Inc. Half-rate vocoder

Also Published As

Publication number Publication date
ATE433183T1 (de) 2009-06-15
CA2461704C (en) 2010-12-21
ATE348387T1 (de) 2007-01-15
DE602004003610D1 (de) 2007-01-25
EP1748425A2 (en) 2007-01-31
DE602004003610T2 (de) 2007-04-05
EP1465158A2 (en) 2004-10-06
US20050278169A1 (en) 2005-12-15
CA2461704A1 (en) 2004-10-01
EP1748425B1 (en) 2009-06-03
JP2004310088A (ja) 2004-11-04
EP1465158B1 (en) 2006-12-13
EP1465158A3 (en) 2005-09-21
US8359197B2 (en) 2013-01-22
US8595002B2 (en) 2013-11-26
US20130144613A1 (en) 2013-06-06
EP1748425A3 (en) 2007-05-09

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Legal Events

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