AU1524300A - Closed-loop variable-rate multimode predictive speech coder - Google Patents
Closed-loop variable-rate multimode predictive speech coderInfo
- 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
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)
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)
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)
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 |
-
1999
- 1999-11-12 WO PCT/US1999/026850 patent/WO2000030075A1/en not_active Application Discontinuation
- 1999-11-12 AU AU15243/00A patent/AU1524300A/en not_active Abandoned
- 1999-11-12 JP JP2000583004A patent/JP2002530706A/ja active Pending
- 1999-11-12 EP EP99957560A patent/EP1129451A1/en not_active Withdrawn
- 1999-11-12 KR KR1020017006035A patent/KR20010087393A/ko not_active Application Discontinuation
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 |