AU1524300A - Closed-loop variable-rate multimode predictive speech coder - Google Patents

Closed-loop variable-rate multimode predictive speech coder

Info

Publication number
AU1524300A
AU1524300A AU15243/00A AU1524300A AU1524300A AU 1524300 A AU1524300 A AU 1524300A AU 15243/00 A AU15243/00 A AU 15243/00A AU 1524300 A AU1524300 A AU 1524300A AU 1524300 A AU1524300 A AU 1524300A
Authority
AU
Australia
Prior art keywords
closed
speech coder
loop variable
predictive speech
rate multimode
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.)
Abandoned
Application number
AU15243/00A
Other languages
English (en)
Inventor
Amitava Das
Andrew P Dejaco
Sharath Manjunath
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.)
Qualcomm Inc
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of AU1524300A publication Critical patent/AU1524300A/en
Abandoned 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
    • G10L19/04—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 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

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AU15243/00A 1998-11-13 1999-11-12 Closed-loop variable-rate multimode predictive speech coder Abandoned AU1524300A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US19164398A 1998-11-13 1998-11-13
US09191643 1998-11-13
PCT/US1999/026850 WO2000030075A1 (en) 1998-11-13 1999-11-12 Closed-loop variable-rate multimode predictive speech coder

Publications (1)

Publication Number Publication Date
AU1524300A true AU1524300A (en) 2000-06-05

Family

ID=22706319

Family Applications (1)

Application Number Title Priority Date Filing Date
AU15243/00A Abandoned AU1524300A (en) 1998-11-13 1999-11-12 Closed-loop variable-rate multimode predictive speech coder

Country Status (5)

Country Link
EP (1) EP1129451A1 (ko)
JP (1) JP2002530706A (ko)
KR (1) KR20010087393A (ko)
AU (1) AU1524300A (ko)
WO (1) WO2000030075A1 (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6330532B1 (en) * 1999-07-19 2001-12-11 Qualcomm Incorporated Method and apparatus for maintaining a target bit rate in a speech coder
US6438518B1 (en) * 1999-10-28 2002-08-20 Qualcomm Incorporated Method and apparatus for using coding scheme selection patterns in a predictive speech coder to reduce sensitivity to frame error conditions
JP3404024B2 (ja) * 2001-02-27 2003-05-06 三菱電機株式会社 音声符号化方法および音声符号化装置
US8725499B2 (en) 2006-07-31 2014-05-13 Qualcomm Incorporated Systems, methods, and apparatus for signal change detection
US8532984B2 (en) 2006-07-31 2013-09-10 Qualcomm Incorporated Systems, methods, and apparatus for wideband encoding and decoding of active frames
US8260609B2 (en) 2006-07-31 2012-09-04 Qualcomm Incorporated Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
JP2008170488A (ja) 2007-01-06 2008-07-24 Yamaha Corp 波形圧縮装置、波形伸長装置、プログラムおよび圧縮データの生産方法
CN102254562B (zh) * 2011-06-29 2013-04-03 北京理工大学 一种相邻高低速率编码模式间切换的变速率音频编码方法
CN118016081B (zh) * 2024-04-10 2024-06-21 山东省计算中心（国家超级计算济南中心） 基于语音质量分级模型的变速率语音编码方法及***

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0398318A (ja) * 1989-09-11 1991-04-23 Fujitsu Ltd 音声符号化方式
CN1129263C (zh) * 1994-02-17 2003-11-26 摩托罗拉公司 分组编码信号的方法和装置

Also Published As

Publication number Publication date
WO2000030075A1 (en) 2000-05-25
KR20010087393A (ko) 2001-09-15
EP1129451A1 (en) 2001-09-05
JP2002530706A (ja) 2002-09-17

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase