ZA200901367B - Method and device for transcoding audio signals - Google Patents
Method and device for transcoding audio signalsInfo
- Publication number
- ZA200901367B ZA200901367B ZA200901367A ZA200901367A ZA200901367B ZA 200901367 B ZA200901367 B ZA 200901367B ZA 200901367 A ZA200901367 A ZA 200901367A ZA 200901367 A ZA200901367 A ZA 200901367A ZA 200901367 B ZA200901367 B ZA 200901367B
- Authority
- ZA
- South Africa
- Prior art keywords
- audio signals
- transcoding audio
- transcoding
- signals
- audio
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title 1
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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
-
- 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
-
- 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
-
- 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
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
-
- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (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)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06120969A EP1903559A1 (en) | 2006-09-20 | 2006-09-20 | Method and device for transcoding audio signals |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200901367B true ZA200901367B (en) | 2010-05-26 |
Family
ID=37605771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200901367A ZA200901367B (en) | 2006-09-20 | 2007-09-06 | Method and device for transcoding audio signals |
Country Status (10)
Country | Link |
---|---|
US (1) | US9093065B2 (xx) |
EP (2) | EP1903559A1 (xx) |
JP (1) | JP5324450B2 (xx) |
KR (1) | KR101341317B1 (xx) |
CN (1) | CN101563726A (xx) |
BR (1) | BRPI0718465A2 (xx) |
CA (1) | CA2662910C (xx) |
TW (1) | TWI423251B (xx) |
WO (1) | WO2008034723A1 (xx) |
ZA (1) | ZA200901367B (xx) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8793738B2 (en) | 1994-05-04 | 2014-07-29 | Starsight Telecast Incorporated | Television system with downloadable features |
CH705207B1 (de) | 2002-06-19 | 2012-11-30 | Prospective Concepts Ag | Pneumatisches Bauelement mit Knotenelementen. |
WO2007071100A1 (de) | 2005-12-23 | 2007-06-28 | Prospective Concepts Ag | Pneumatisches bauelement, und daraus erzeugtes dach |
CH704442B1 (de) | 2005-12-23 | 2012-08-15 | Prospective Concepts Ag | Pneumatisches Bauelement. |
DE102006051673A1 (de) * | 2006-11-02 | 2008-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Nachbearbeiten von Spektralwerten und Encodierer und Decodierer für Audiosignale |
EP2099027A1 (en) * | 2008-03-05 | 2009-09-09 | Deutsche Thomson OHG | Method and apparatus for transforming between different filter bank domains |
EP3373297B1 (en) * | 2008-09-18 | 2023-12-06 | Electronics and Telecommunications Research Institute | Decoding apparatus for transforming between modified discrete cosine transform-based coder and hetero coder |
CN101989429B (zh) | 2009-07-31 | 2012-02-01 | 华为技术有限公司 | 转码方法、装置、设备以及*** |
EP2306456A1 (en) * | 2009-09-04 | 2011-04-06 | Thomson Licensing | Method for decoding an audio signal that has a base layer and an enhancement layer |
US8509329B2 (en) * | 2009-11-06 | 2013-08-13 | Samsung Electronics Co., Ltd. | Data receiving apparatus for receiving data frame using constellation mapping scheme and data transmission apparatus for transmitting the date frame |
JP6113294B2 (ja) * | 2012-11-07 | 2017-04-12 | ドルビー・インターナショナル・アーベー | 軽減された計算量の変換器snr計算 |
EP2988433B1 (en) * | 2013-04-18 | 2022-01-12 | Mitsubishi Electric Corporation | Demultiplexing device, multiplexing device, and relay device |
CN111312279B (zh) | 2013-09-12 | 2024-02-06 | 杜比国际公司 | 基于qmf的处理数据的时间对齐 |
TWI557724B (zh) | 2013-09-27 | 2016-11-11 | 杜比實驗室特許公司 | 用於將 n 聲道音頻節目編碼之方法、用於恢復 n 聲道音頻節目的 m 個聲道之方法、被配置成將 n 聲道音頻節目編碼之音頻編碼器及被配置成執行 n 聲道音頻節目的恢復之解碼器 |
WO2018201112A1 (en) | 2017-04-28 | 2018-11-01 | Goodwin Michael M | Audio coder window sizes and time-frequency transformations |
WO2022179406A1 (zh) * | 2021-02-26 | 2022-09-01 | 腾讯科技(深圳)有限公司 | 音频转码方法、装置、音频转码器、设备以及存储介质 |
CN113689864B (zh) * | 2021-10-27 | 2022-01-18 | 北京百瑞互联技术有限公司 | 一种音频数据处理方法、装置及存储介质 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6260009B1 (en) * | 1999-02-12 | 2001-07-10 | Qualcomm Incorporated | CELP-based to CELP-based vocoder packet translation |
DE60039662D1 (de) | 1999-03-25 | 2008-09-11 | Sagem Comm | Spracherkenungsgerät zur erkennung eines sprachsignals in einem eingangssignal |
CN100527225C (zh) * | 2002-01-08 | 2009-08-12 | 迪里辛姆网络控股有限公司 | 基于celp的语音代码之间的代码转换方案 |
JP4263412B2 (ja) | 2002-01-29 | 2009-05-13 | 富士通株式会社 | 音声符号変換方法 |
AU2003214182A1 (en) * | 2002-03-12 | 2003-09-29 | Dilithium Networks Pty Limited | Method for adaptive codebook pitch-lag computation in audio transcoders |
DE10217297A1 (de) | 2002-04-18 | 2003-11-06 | Fraunhofer Ges Forschung | Vorrichtung und Verfahren zum Codieren eines zeitdiskreten Audiosignals und Vorrichtung und Verfahren zum Decodieren von codierten Audiodaten |
US7363230B2 (en) * | 2002-08-01 | 2008-04-22 | Yamaha Corporation | Audio data processing apparatus and audio data distributing apparatus |
TW573293B (en) * | 2002-09-13 | 2004-01-21 | Univ Nat Central | Nonlinear operation method suitable for audio encoding/decoding and an applied hardware thereof |
US7630889B2 (en) * | 2003-04-08 | 2009-12-08 | Nec Corporation | Code conversion method and device |
EP1719117A1 (en) * | 2004-02-16 | 2006-11-08 | Koninklijke Philips Electronics N.V. | A transcoder and method of transcoding therefore |
KR20070074546A (ko) * | 2004-08-31 | 2007-07-12 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 트랜스코딩을 위한 방법 및 디바이스 |
TWI270236B (en) * | 2005-08-12 | 2007-01-01 | Advanced Connectek Inc | Loop antenna with capacitive structure |
-
2006
- 2006-09-20 EP EP06120969A patent/EP1903559A1/en not_active Withdrawn
-
2007
- 2007-08-24 TW TW096131326A patent/TWI423251B/zh not_active IP Right Cessation
- 2007-09-06 BR BRPI0718465-4A patent/BRPI0718465A2/pt not_active IP Right Cessation
- 2007-09-06 EP EP07803303A patent/EP2064700B1/en not_active Not-in-force
- 2007-09-06 WO PCT/EP2007/059349 patent/WO2008034723A1/en active Application Filing
- 2007-09-06 US US12/311,129 patent/US9093065B2/en not_active Expired - Fee Related
- 2007-09-06 KR KR1020097005619A patent/KR101341317B1/ko not_active IP Right Cessation
- 2007-09-06 ZA ZA200901367A patent/ZA200901367B/xx unknown
- 2007-09-06 JP JP2009528672A patent/JP5324450B2/ja not_active Expired - Fee Related
- 2007-09-06 CN CNA2007800344873A patent/CN101563726A/zh active Pending
- 2007-09-06 CA CA2662910A patent/CA2662910C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2008034723A1 (en) | 2008-03-27 |
JP2010504544A (ja) | 2010-02-12 |
US20090240507A1 (en) | 2009-09-24 |
KR101341317B1 (ko) | 2013-12-12 |
TWI423251B (zh) | 2014-01-11 |
US9093065B2 (en) | 2015-07-28 |
BRPI0718465A2 (pt) | 2013-12-03 |
CA2662910A1 (en) | 2008-03-27 |
TW200816167A (en) | 2008-04-01 |
CN101563726A (zh) | 2009-10-21 |
JP5324450B2 (ja) | 2013-10-23 |
EP2064700A1 (en) | 2009-06-03 |
EP1903559A1 (en) | 2008-03-26 |
CA2662910C (en) | 2015-12-15 |
KR20090055579A (ko) | 2009-06-02 |
EP2064700B1 (en) | 2012-09-05 |
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