ZA200810394B - Encoding an information signal - Google Patents
Encoding an information signalInfo
- Publication number
- ZA200810394B ZA200810394B ZA200810394A ZA200810394A ZA200810394B ZA 200810394 B ZA200810394 B ZA 200810394B ZA 200810394 A ZA200810394 A ZA 200810394A ZA 200810394 A ZA200810394 A ZA 200810394A ZA 200810394 B ZA200810394 B ZA 200810394B
- Authority
- ZA
- South Africa
- Prior art keywords
- limits
- frame
- encoding
- information signal
- frames
- Prior art date
Links
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000001052 transient effect Effects 0.000 abstract 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
-
- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
-
- 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
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
-
- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Circuits Of Receivers In General (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The problem of transients can be addressed satisfactorily and a further decoding delay can be reduced for this if use is made of a new SBR frame class in which the frame limits (902a, 902b) are not shifted, that is to say the grid limits are still synchronized with the frame limits (902a, 902b), but in which a statement of the transient position (T) is also used as a syntax element in order to be used, within the frames of this new frame class, to determine the grid limits within these frames at the coder and/or decoder end.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006049154A DE102006049154B4 (en) | 2006-10-18 | 2006-10-18 | Coding of an information signal |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200810394B true ZA200810394B (en) | 2009-08-26 |
Family
ID=38657988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200810394A ZA200810394B (en) | 2006-10-18 | 2008-12-09 | Encoding an information signal |
Country Status (20)
Country | Link |
---|---|
EP (1) | EP2057625B1 (en) |
JP (1) | JP5266234B2 (en) |
KR (1) | KR101183962B1 (en) |
CN (1) | CN101529503B (en) |
AT (1) | ATE507554T1 (en) |
AU (1) | AU2007312667B2 (en) |
BR (1) | BRPI0715555B1 (en) |
CA (1) | CA2664466C (en) |
DE (2) | DE102006049154B4 (en) |
ES (1) | ES2365433T3 (en) |
HK (1) | HK1126567A1 (en) |
IL (1) | IL197561A (en) |
MX (1) | MX2009004045A (en) |
MY (1) | MY147067A (en) |
NO (1) | NO341258B1 (en) |
PL (1) | PL2057625T3 (en) |
RU (1) | RU2413312C2 (en) |
TW (1) | TWI355648B (en) |
WO (1) | WO2008046505A1 (en) |
ZA (1) | ZA200810394B (en) |
Families Citing this family (34)
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TWI559679B (en) | 2009-02-18 | 2016-11-21 | 杜比國際公司 | Low delay modulated filter bank and method for the design of the low delay modulated filter bank |
JP4932917B2 (en) * | 2009-04-03 | 2012-05-16 | 株式会社エヌ・ティ・ティ・ドコモ | Speech decoding apparatus, speech decoding method, and speech decoding program |
JP4921611B2 (en) * | 2009-04-03 | 2012-04-25 | 株式会社エヌ・ティ・ティ・ドコモ | Speech decoding apparatus, speech decoding method, and speech decoding program |
US9508351B2 (en) * | 2009-12-16 | 2016-11-29 | Dobly International AB | SBR bitstream parameter downmix |
US9338523B2 (en) * | 2009-12-21 | 2016-05-10 | Echostar Technologies L.L.C. | Audio splitting with codec-enforced frame sizes |
CN102436820B (en) | 2010-09-29 | 2013-08-28 | 华为技术有限公司 | High frequency band signal coding and decoding methods and devices |
EP2477188A1 (en) | 2011-01-18 | 2012-07-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoding and decoding of slot positions of events in an audio signal frame |
EP4243017A3 (en) | 2011-02-14 | 2023-11-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method decoding an audio signal using an aligned look-ahead portion |
MY164797A (en) | 2011-02-14 | 2018-01-30 | Fraunhofer Ges Zur Foederung Der Angewandten Forschung E V | Apparatus and method for processing a decoded audio signal in a spectral domain |
BR112012029132B1 (en) | 2011-02-14 | 2021-10-05 | Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V | REPRESENTATION OF INFORMATION SIGNAL USING OVERLAY TRANSFORMED |
CA2903681C (en) | 2011-02-14 | 2017-03-28 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Audio codec using noise synthesis during inactive phases |
PT2676267T (en) | 2011-02-14 | 2017-09-26 | Fraunhofer Ges Forschung | Encoding and decoding of pulse positions of tracks of an audio signal |
AU2012217216B2 (en) | 2011-02-14 | 2015-09-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result |
EP2676266B1 (en) | 2011-02-14 | 2015-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Linear prediction based coding scheme using spectral domain noise shaping |
MY159444A (en) | 2011-02-14 | 2017-01-13 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V | Encoding and decoding of pulse positions of tracks of an audio signal |
CN103620672B (en) | 2011-02-14 | 2016-04-27 | 弗劳恩霍夫应用研究促进协会 | For the apparatus and method of the error concealing in low delay associating voice and audio coding (USAC) |
KR101767175B1 (en) | 2011-03-18 | 2017-08-10 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | Frame element length transmission in audio coding |
JP5807453B2 (en) * | 2011-08-30 | 2015-11-10 | 富士通株式会社 | Encoding method, encoding apparatus, and encoding program |
CN107835428B (en) * | 2012-03-02 | 2021-09-24 | 太阳专利托管公司 | Image encoding method, image decoding method, image encoding device, image decoding device, and image encoding/decoding device |
JP5997592B2 (en) * | 2012-04-27 | 2016-09-28 | 株式会社Nttドコモ | Speech decoder |
BR122021009022B1 (en) | 2013-04-05 | 2022-08-16 | Dolby International Ab | DECODING METHOD TO DECODE TWO AUDIO SIGNALS, COMPUTER READY MEDIA, AND DECODER TO DECODE TWO AUDIO SIGNALS |
KR101789083B1 (en) | 2013-06-10 | 2017-10-23 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. | Apparatus and method for audio signal envelope encoding, processing and decoding by modelling a cumulative sum representation employing distribution quantization and coding |
SG11201510164RA (en) * | 2013-06-10 | 2016-01-28 | Fraunhofer Ges Forschung | Apparatus and method for audio signal envelope encoding, processing and decoding by splitting the audio signal envelope employing distribution quantization and coding |
WO2017050398A1 (en) * | 2015-09-25 | 2017-03-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding |
ES2727462T3 (en) | 2016-01-22 | 2019-10-16 | Fraunhofer Ges Forschung | Apparatus and procedures for encoding or decoding a multichannel audio signal by using repeated spectral domain sampling |
EP3483883A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio coding and decoding with selective postfiltering |
EP3483886A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selecting pitch lag |
EP3483880A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Temporal noise shaping |
EP3483884A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
EP3483878A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder supporting a set of different loss concealment tools |
WO2019091573A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters |
WO2019091576A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits |
EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
EP3483879A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analysis/synthesis windowing function for modulated lapped transformation |
Family Cites Families (12)
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JP3531178B2 (en) * | 1993-05-27 | 2004-05-24 | ソニー株式会社 | Digital signal processing apparatus and method |
JP3277677B2 (en) * | 1994-04-01 | 2002-04-22 | ソニー株式会社 | Signal encoding method and apparatus, signal recording medium, signal transmission method, and signal decoding method and apparatus |
US6978236B1 (en) * | 1999-10-01 | 2005-12-20 | Coding Technologies Ab | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
BR0107420A (en) * | 2000-11-03 | 2002-10-08 | Koninkl Philips Electronics Nv | Processes for encoding an input and decoding signal, modeled modified signal, storage medium, decoder, audio player, and signal encoding apparatus |
MXPA03010237A (en) * | 2001-05-10 | 2004-03-16 | Dolby Lab Licensing Corp | Improving transient performance of low bit rate audio coding systems by reducing pre-noise. |
KR100852613B1 (en) * | 2001-06-08 | 2008-08-18 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Editing of audio signals |
AU2003281128A1 (en) * | 2002-07-16 | 2004-02-02 | Koninklijke Philips Electronics N.V. | Audio coding |
JP3861770B2 (en) * | 2002-08-21 | 2006-12-20 | ソニー株式会社 | Signal encoding apparatus and method, signal decoding apparatus and method, program, and recording medium |
JP2007504503A (en) * | 2003-09-05 | 2007-03-01 | コニンクリユケ フィリップス エレクトロニクス エヌ.ブイ. | Low bit rate audio encoding |
US7451091B2 (en) * | 2003-10-07 | 2008-11-11 | Matsushita Electric Industrial Co., Ltd. | Method for determining time borders and frequency resolutions for spectral envelope coding |
KR100608062B1 (en) * | 2004-08-04 | 2006-08-02 | 삼성전자주식회사 | Method and apparatus for decoding high frequency of audio data |
JP4822697B2 (en) * | 2004-12-01 | 2011-11-24 | シャープ株式会社 | Digital signal encoding apparatus and digital signal recording apparatus |
-
2006
- 2006-10-18 DE DE102006049154A patent/DE102006049154B4/en active Active
-
2007
- 2007-10-01 RU RU2009118384/09A patent/RU2413312C2/en active
- 2007-10-01 BR BRPI0715555-7A patent/BRPI0715555B1/en active IP Right Grant
- 2007-10-01 MX MX2009004045A patent/MX2009004045A/en active IP Right Grant
- 2007-10-01 CA CA2664466A patent/CA2664466C/en active Active
- 2007-10-01 EP EP07818607A patent/EP2057625B1/en active Active
- 2007-10-01 JP JP2009532700A patent/JP5266234B2/en active Active
- 2007-10-01 WO PCT/EP2007/008527 patent/WO2008046505A1/en active Application Filing
- 2007-10-01 PL PL07818607T patent/PL2057625T3/en unknown
- 2007-10-01 DE DE502007007077T patent/DE502007007077D1/en active Active
- 2007-10-01 CN CN2007800387563A patent/CN101529503B/en active Active
- 2007-10-01 AT AT07818607T patent/ATE507554T1/en active
- 2007-10-01 ES ES07818607T patent/ES2365433T3/en active Active
- 2007-10-01 AU AU2007312667A patent/AU2007312667B2/en active Active
- 2007-10-01 MY MYPI20091358A patent/MY147067A/en unknown
- 2007-10-01 KR KR1020097007950A patent/KR101183962B1/en active IP Right Grant
- 2007-10-16 TW TW096138633A patent/TWI355648B/en active
-
2008
- 2008-09-01 NO NO20083755A patent/NO341258B1/en unknown
- 2008-12-09 ZA ZA200810394A patent/ZA200810394B/en unknown
-
2009
- 2009-03-12 IL IL197561A patent/IL197561A/en active IP Right Grant
- 2009-06-03 HK HK09104990.3A patent/HK1126567A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
MX2009004045A (en) | 2009-05-28 |
CA2664466A1 (en) | 2008-04-24 |
TWI355648B (en) | 2012-01-01 |
BRPI0715555A8 (en) | 2019-01-15 |
MY147067A (en) | 2012-10-15 |
CN101529503B (en) | 2012-05-09 |
DE102006049154A1 (en) | 2008-04-24 |
BRPI0715555B1 (en) | 2020-09-15 |
PL2057625T3 (en) | 2011-09-30 |
BRPI0715555A2 (en) | 2014-03-18 |
CA2664466C (en) | 2015-03-17 |
NO20083755L (en) | 2008-09-01 |
AU2007312667A1 (en) | 2008-04-24 |
JP2010507113A (en) | 2010-03-04 |
IL197561A (en) | 2013-02-28 |
ATE507554T1 (en) | 2011-05-15 |
CN101529503A (en) | 2009-09-09 |
TW200830277A (en) | 2008-07-16 |
HK1126567A1 (en) | 2009-09-04 |
WO2008046505A1 (en) | 2008-04-24 |
RU2009118384A (en) | 2010-11-27 |
EP2057625B1 (en) | 2011-04-27 |
NO341258B1 (en) | 2017-09-25 |
JP5266234B2 (en) | 2013-08-21 |
IL197561A0 (en) | 2009-12-24 |
DE102006049154B4 (en) | 2009-07-09 |
KR101183962B1 (en) | 2012-09-18 |
AU2007312667B2 (en) | 2010-09-09 |
ES2365433T3 (en) | 2011-10-05 |
KR20090073172A (en) | 2009-07-02 |
DE502007007077D1 (en) | 2011-06-09 |
EP2057625A1 (en) | 2009-05-13 |
RU2413312C2 (en) | 2011-02-27 |
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