CN1909066A - 音频编码码量控制和调整的方法 - Google Patents
音频编码码量控制和调整的方法 Download PDFInfo
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- CN1909066A CN1909066A CNA2005100284057A CN200510028405A CN1909066A CN 1909066 A CN1909066 A CN 1909066A CN A2005100284057 A CNA2005100284057 A CN A2005100284057A CN 200510028405 A CN200510028405 A CN 200510028405A CN 1909066 A CN1909066 A CN 1909066A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000001228 spectrum Methods 0.000 claims abstract description 23
- 238000013139 quantization Methods 0.000 claims description 38
- 238000011002 quantification Methods 0.000 claims description 9
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 claims description 8
- FEPMHVLSLDOMQC-UHFFFAOYSA-N virginiamycin-S1 Natural products CC1OC(=O)C(C=2C=CC=CC=2)NC(=O)C2CC(=O)CCN2C(=O)C(CC=2C=CC=CC=2)N(C)C(=O)C2CCCN2C(=O)C(CC)NC(=O)C1NC(=O)C1=NC=CC=C1O FEPMHVLSLDOMQC-UHFFFAOYSA-N 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
- 238000012804 iterative process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- 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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
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- 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
- G10L19/002—Dynamic bit allocation
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- 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
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- 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
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- 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
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005100284057A CN1909066B (zh) | 2005-08-03 | 2005-08-03 | 音频编码码量控制和调整的方法 |
US11/458,179 US20070033022A1 (en) | 2005-08-03 | 2006-07-18 | Method of bitrate control and adjustment for audio coding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005100284057A CN1909066B (zh) | 2005-08-03 | 2005-08-03 | 音频编码码量控制和调整的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1909066A true CN1909066A (zh) | 2007-02-07 |
CN1909066B CN1909066B (zh) | 2011-02-09 |
Family
ID=37700152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005100284057A Expired - Fee Related CN1909066B (zh) | 2005-08-03 | 2005-08-03 | 音频编码码量控制和调整的方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20070033022A1 (zh) |
CN (1) | CN1909066B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102341846A (zh) * | 2009-03-04 | 2012-02-01 | 韩国科亚电子股份有限公司 | 用于音频编码的量化 |
CN102801971A (zh) * | 2011-05-23 | 2012-11-28 | 索尼公司 | 编码装置、编码方法和程序 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2186087B1 (en) * | 2007-08-27 | 2011-11-30 | Telefonaktiebolaget L M Ericsson (PUBL) | Improved transform coding of speech and audio signals |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3237089B2 (ja) * | 1994-07-28 | 2001-12-10 | 株式会社日立製作所 | 音響信号符号化復号方法 |
US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
KR19990082402A (ko) * | 1996-02-08 | 1999-11-25 | 모리시타 요이찌 | 광대역 오디오신호 부호장치, 광대역 오디오신호 복호장치, 광대역 오디오신호 부호 복호장치 및 광대역 오디오신호 기록매체 |
WO2005004113A1 (ja) * | 2003-06-30 | 2005-01-13 | Fujitsu Limited | オーディオ符号化装置 |
CN1461112A (zh) * | 2003-07-04 | 2003-12-10 | 北京阜国数字技术有限公司 | 一种基于极小化全局噪声掩蔽比准则和熵编码的量化的音频编码方法 |
-
2005
- 2005-08-03 CN CN2005100284057A patent/CN1909066B/zh not_active Expired - Fee Related
-
2006
- 2006-07-18 US US11/458,179 patent/US20070033022A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102341846A (zh) * | 2009-03-04 | 2012-02-01 | 韩国科亚电子股份有限公司 | 用于音频编码的量化 |
CN102341846B (zh) * | 2009-03-04 | 2013-09-25 | 韩国科亚电子股份有限公司 | 用于音频编码器的量化方法和装置 |
CN102801971A (zh) * | 2011-05-23 | 2012-11-28 | 索尼公司 | 编码装置、编码方法和程序 |
Also Published As
Publication number | Publication date |
---|---|
CN1909066B (zh) | 2011-02-09 |
US20070033022A1 (en) | 2007-02-08 |
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Owner name: KUNSHAN JADE TECHNOLOGIES CO., LTD. Free format text: FORMER OWNER: SHANGHAI JADE TECHNOLOGIES CO., LTD. Effective date: 20100719 |
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Effective date of registration: 20100719 Address after: A ABCD 12 layer 215311 town Kunshan city Kunshan Pudong Software Park South Applicant after: Shanghai Jade Technologies Co., Ltd. Address before: 201203, No. 16, building 572, Lane 115, blue wave road, Zhangjiang hi tech park, Shanghai, Pudong New Area Applicant before: Shanghai Jiede Microelectronic Co., Ltd. |
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