CN100420155C - 宽带音频压缩编码器的频带组划分方法 - Google Patents
宽带音频压缩编码器的频带组划分方法 Download PDFInfo
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- CN100420155C CN100420155C CNB2005100284061A CN200510028406A CN100420155C CN 100420155 C CN100420155 C CN 100420155C CN B2005100284061 A CNB2005100284061 A CN B2005100284061A CN 200510028406 A CN200510028406 A CN 200510028406A CN 100420155 C CN100420155 C CN 100420155C
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005192 partition Methods 0.000 title claims description 14
- 230000006835 compression Effects 0.000 title abstract description 6
- 238000007906 compression Methods 0.000 title abstract description 6
- 238000001228 spectrum Methods 0.000 claims description 21
- 238000011002 quantification Methods 0.000 claims description 5
- 238000013139 quantization Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 1
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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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- Engineering & Computer Science (AREA)
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- 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)
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Abstract
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Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005100284061A CN100420155C (zh) | 2005-08-03 | 2005-08-03 | 宽带音频压缩编码器的频带组划分方法 |
US11/458,207 US20070033011A1 (en) | 2005-08-03 | 2006-07-18 | Method of band group partition for wideband audio codec |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005100284061A CN100420155C (zh) | 2005-08-03 | 2005-08-03 | 宽带音频压缩编码器的频带组划分方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1909381A CN1909381A (zh) | 2007-02-07 |
CN100420155C true CN100420155C (zh) | 2008-09-17 |
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ID=37700388
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Application Number | Title | Priority Date | Filing Date |
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CNB2005100284061A Expired - Fee Related CN100420155C (zh) | 2005-08-03 | 2005-08-03 | 宽带音频压缩编码器的频带组划分方法 |
Country Status (2)
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US (1) | US20070033011A1 (zh) |
CN (1) | CN100420155C (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101325059B (zh) * | 2007-06-15 | 2011-12-21 | 华为技术有限公司 | 语音编解码收发方法及装置 |
CN105632505B (zh) * | 2014-11-28 | 2019-12-20 | 北京天籁传音数字技术有限公司 | 主成分分析pca映射模型的编解码方法及装置 |
CN112201261B (zh) * | 2020-09-08 | 2024-05-03 | 厦门亿联网络技术股份有限公司 | 基于线性滤波的频带扩展方法、装置及会议终端*** |
CN117476013A (zh) * | 2022-07-27 | 2024-01-30 | 华为技术有限公司 | 音频信号的处理方法、装置、存储介质及计算机程序产品 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10327074A (ja) * | 1997-05-22 | 1998-12-08 | Matsushita Electric Ind Co Ltd | 信号処理装置 |
CN1288625A (zh) * | 1998-01-16 | 2001-03-21 | 艾利森公司 | 用于跟踪信道特性的方法和设备 |
WO2001037264A1 (en) * | 1999-11-18 | 2001-05-25 | Voiceage Corporation | Gain-smoothing in wideband speech and audio signal decoder |
CN1310431A (zh) * | 2000-09-13 | 2001-08-29 | 叶玉飞 | 一种不停车收费*** |
US20020035407A1 (en) * | 1997-04-11 | 2002-03-21 | Matsushita Electric Industrial Co., Ltd. | Audio decoding apparatus, signal processing device, sound image localization device, sound image control method, audio signal processing device, and audio signal high-rate reproduction method used for audio visual equipment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5664057A (en) * | 1993-07-07 | 1997-09-02 | Picturetel Corporation | Fixed bit rate speech encoder/decoder |
JP4012506B2 (ja) * | 2001-08-24 | 2007-11-21 | 株式会社ケンウッド | 信号の周波数成分を適応的に補間するための装置および方法 |
-
2005
- 2005-08-03 CN CNB2005100284061A patent/CN100420155C/zh not_active Expired - Fee Related
-
2006
- 2006-07-18 US US11/458,207 patent/US20070033011A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020035407A1 (en) * | 1997-04-11 | 2002-03-21 | Matsushita Electric Industrial Co., Ltd. | Audio decoding apparatus, signal processing device, sound image localization device, sound image control method, audio signal processing device, and audio signal high-rate reproduction method used for audio visual equipment |
JPH10327074A (ja) * | 1997-05-22 | 1998-12-08 | Matsushita Electric Ind Co Ltd | 信号処理装置 |
CN1288625A (zh) * | 1998-01-16 | 2001-03-21 | 艾利森公司 | 用于跟踪信道特性的方法和设备 |
WO2001037264A1 (en) * | 1999-11-18 | 2001-05-25 | Voiceage Corporation | Gain-smoothing in wideband speech and audio signal decoder |
CN1310431A (zh) * | 2000-09-13 | 2001-08-29 | 叶玉飞 | 一种不停车收费*** |
Non-Patent Citations (4)
Title |
---|
一种结合正弦参数提取和MDCT滤波器组的频谱优化方法. 孟建斌,沈海斌,严晓浪.电声技术,第2期. 2005 |
一种结合正弦参数提取和MDCT滤波器组的频谱优化方法. 孟建斌,沈海斌,严晓浪.电声技术,第2期. 2005 * |
数字广播音频编码中的频带复制技术(SBR). 焦慧颖,安建平,卜祥元.中国有线电视,第5期. 2005 |
数字广播音频编码中的频带复制技术(SBR). 焦慧颖,安建平,卜祥元.中国有线电视,第5期. 2005 * |
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Publication number | Publication date |
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US20070033011A1 (en) | 2007-02-08 |
CN1909381A (zh) | 2007-02-07 |
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