CN1199959A - 音频编码方法和装置 - Google Patents
音频编码方法和装置 Download PDFInfo
- Publication number
- CN1199959A CN1199959A CN 98107058 CN98107058A CN1199959A CN 1199959 A CN1199959 A CN 1199959A CN 98107058 CN98107058 CN 98107058 CN 98107058 A CN98107058 A CN 98107058A CN 1199959 A CN1199959 A CN 1199959A
- Authority
- CN
- China
- Prior art keywords
- spectrum
- spectrum value
- value
- prediction
- stream
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000001228 spectrum Methods 0.000 claims abstract description 107
- 230000003044 adaptive effect Effects 0.000 claims abstract description 23
- 230000005236 sound signal Effects 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000010295 mobile communication Methods 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 abstract 9
- 238000005070 sampling Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000011002 quantification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000282485 Vulpes vulpes Species 0.000 description 1
- 238000005311 autocorrelation function Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Images
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
- G10L19/02—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
- G10L19/0212—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 orthogonal transformation
-
- 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
Landscapes
- 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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI970553A FI970553A (fi) | 1997-02-07 | 1997-02-07 | Audiokoodausmenetelmä ja -laite |
FI970553 | 1997-02-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1199959A true CN1199959A (zh) | 1998-11-25 |
CN1202513C CN1202513C (zh) | 2005-05-18 |
Family
ID=8548146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 98107058 Expired - Lifetime CN1202513C (zh) | 1997-02-07 | 1998-02-06 | 音频编码、译码方法和装置及其应用 |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPH10260699A (zh) |
CN (1) | CN1202513C (zh) |
AU (1) | AU5664898A (zh) |
DE (1) | DE19804584A1 (zh) |
FI (1) | FI970553A (zh) |
FR (1) | FR2759510A1 (zh) |
GB (1) | GB2322776B (zh) |
SE (1) | SE9800338L (zh) |
WO (1) | WO1998035447A2 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102341844A (zh) * | 2009-03-10 | 2012-02-01 | 日本电信电话株式会社 | 编码方法、解码方法、编码装置、解码装置、程序及记录介质 |
CN101484937B (zh) * | 2006-06-01 | 2012-07-04 | 诺基亚公司 | 使用缓冲器调节对已预测编码的数据进行解码 |
CN106409299A (zh) * | 2012-03-29 | 2017-02-15 | 华为技术有限公司 | 信号编码和解码的方法和设备 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8332216B2 (en) | 2006-01-12 | 2012-12-11 | Stmicroelectronics Asia Pacific Pte., Ltd. | System and method for low power stereo perceptual audio coding using adaptive masking threshold |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02131038A (ja) * | 1988-11-10 | 1990-05-18 | Pioneer Electron Corp | 信号伝送装置 |
JP3343965B2 (ja) * | 1992-10-31 | 2002-11-11 | ソニー株式会社 | 音声符号化方法及び復号化方法 |
EP0692881B1 (en) * | 1993-11-09 | 2005-06-15 | Sony Corporation | Quantization apparatus, quantization method, high efficiency encoder, high efficiency encoding method, decoder, high efficiency encoder and recording media |
US5684920A (en) * | 1994-03-17 | 1997-11-04 | Nippon Telegraph And Telephone | Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein |
DE19526366A1 (de) * | 1995-07-20 | 1997-01-23 | Bosch Gmbh Robert | Verfahren zur Redundanzreduktion bei der Codierung von mehrkanaligen Signalen und Vorrichtung zur Dekodierung von redundanzreduzierten, mehrkanaligen Signalen |
GB2318029B (en) * | 1996-10-01 | 2000-11-08 | Nokia Mobile Phones Ltd | Audio coding method and apparatus |
-
1997
- 1997-02-07 FI FI970553A patent/FI970553A/fi unknown
-
1998
- 1998-01-15 WO PCT/FI1998/000029 patent/WO1998035447A2/en active Application Filing
- 1998-01-15 AU AU56648/98A patent/AU5664898A/en not_active Abandoned
- 1998-02-05 SE SE9800338A patent/SE9800338L/xx not_active Application Discontinuation
- 1998-02-05 DE DE1998104584 patent/DE19804584A1/de not_active Withdrawn
- 1998-02-05 JP JP2461598A patent/JPH10260699A/ja not_active Withdrawn
- 1998-02-06 FR FR9801430A patent/FR2759510A1/fr active Pending
- 1998-02-06 GB GB9802611A patent/GB2322776B/en not_active Expired - Lifetime
- 1998-02-06 CN CN 98107058 patent/CN1202513C/zh not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101484937B (zh) * | 2006-06-01 | 2012-07-04 | 诺基亚公司 | 使用缓冲器调节对已预测编码的数据进行解码 |
CN102341844A (zh) * | 2009-03-10 | 2012-02-01 | 日本电信电话株式会社 | 编码方法、解码方法、编码装置、解码装置、程序及记录介质 |
CN102341844B (zh) * | 2009-03-10 | 2013-10-16 | 日本电信电话株式会社 | 编码方法、解码方法、编码装置、解码装置 |
CN106409299A (zh) * | 2012-03-29 | 2017-02-15 | 华为技术有限公司 | 信号编码和解码的方法和设备 |
US10600430B2 (en) | 2012-03-29 | 2020-03-24 | Huawei Technologies Co., Ltd. | Signal decoding method, audio signal decoder and non-transitory computer-readable medium |
Also Published As
Publication number | Publication date |
---|---|
FI970553A (fi) | 1998-08-08 |
WO1998035447A3 (en) | 1998-11-19 |
SE9800338D0 (sv) | 1998-02-05 |
DE19804584A1 (de) | 1998-08-13 |
GB2322776B (en) | 2002-03-13 |
CN1202513C (zh) | 2005-05-18 |
JPH10260699A (ja) | 1998-09-29 |
FI970553A0 (fi) | 1997-02-07 |
GB9802611D0 (en) | 1998-04-01 |
SE9800338L (sv) | 1998-08-08 |
AU5664898A (en) | 1998-08-26 |
FR2759510A1 (fr) | 1998-08-14 |
GB2322776A (en) | 1998-09-02 |
WO1998035447A2 (en) | 1998-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7289951B1 (en) | Method for improving the coding efficiency of an audio signal | |
CN1135721C (zh) | 音频信号编码方法及其有关设备 | |
US7729905B2 (en) | Speech coding apparatus and speech decoding apparatus each having a scalable configuration | |
CN1735928B (zh) | 用于可变速率音频编解码的方法 | |
US5214741A (en) | Variable bit rate coding system | |
JPS5921039B2 (ja) | 適応予測符号化方式 | |
US20080091440A1 (en) | Sound Encoder And Sound Encoding Method | |
JPH04127747A (ja) | 可変レート符号化方式 | |
KR100972349B1 (ko) | Ltp 부호화 시스템에서 피치 래그를 결정하기 위한시스템 및 방법 | |
KR19990041072A (ko) | 비트율 조절이 가능한 스테레오 오디오 부호화/복호화 방법 및 장치 | |
RU2505921C2 (ru) | Способ и устройство кодирования и декодирования аудиосигналов (варианты) | |
JP3237089B2 (ja) | 音響信号符号化復号方法 | |
CN101325059B (zh) | 语音编解码收发方法及装置 | |
CN1222993A (zh) | 可变位速率语音传输系统 | |
CN1202513C (zh) | 音频编码、译码方法和装置及其应用 | |
US6012025A (en) | Audio coding method and apparatus using backward adaptive prediction | |
JPS59129900A (ja) | 帯域分割符号化方式 | |
CN101325058A (zh) | 语音编码发送和接收解码的方法及装置 | |
JP2778128B2 (ja) | 適応変換符号化の方法及び装置 | |
Yuan et al. | An ADM speech coding with time domain harmonic scaling | |
JP2890523B2 (ja) | 適応変換符号化の方法及び装置 | |
JP2638208B2 (ja) | 適応変換符号化復号化の方法及び装置 | |
KR0138868B1 (ko) | 엘에스피 주파수 양자화 방법 및 양자화기 | |
JPH0338700A (ja) | 適応変換符号化の方法及び装置 | |
Sinaga et al. | Scalable audio coding using the oversampled discrete wavelet transform and temporal masking |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1052005 Country of ref document: HK |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170109 Address after: Espoo, Finland Patentee after: NOKIA TECHNOLOGIES OY Address before: Espoo, Finland Patentee before: Nokia Corp. Effective date of registration: 20170109 Address after: Espoo, Finland Patentee after: NOKIA Corp. Address before: Espoo, Finland Patentee before: Nokia Mobile Phones Ltd. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20050518 |