WO2013186561A3 - Doubly compatible lossless audio bandwidth extension - Google Patents
Doubly compatible lossless audio bandwidth extension Download PDFInfo
- Publication number
- WO2013186561A3 WO2013186561A3 PCT/GB2013/051548 GB2013051548W WO2013186561A3 WO 2013186561 A3 WO2013186561 A3 WO 2013186561A3 GB 2013051548 W GB2013051548 W GB 2013051548W WO 2013186561 A3 WO2013186561 A3 WO 2013186561A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bandwidth extension
- encoder
- audio bandwidth
- lossless audio
- sampling rate
- Prior art date
Links
- 238000005070 sampling Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000005236 sound signal 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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1806—Pulse code modulation systems for audio signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2898923A CA2898923C (en) | 2012-06-12 | 2013-06-12 | Doubly compatible lossless audio bandwidth extension |
CN201380038662.1A CN104508740B (en) | 2012-06-12 | 2013-06-12 | Dual compatible lossless audio bandwidth expansion |
JP2015516683A JP6264699B2 (en) | 2012-06-12 | 2013-06-12 | Lossless audio bandwidth expansion with dual compatibility |
US14/406,110 US9548055B2 (en) | 2012-06-12 | 2013-06-12 | Doubly compatible lossless audio bandwidth extension |
EP13733412.4A EP2859548B1 (en) | 2012-06-12 | 2013-06-12 | Doubly compatible lossless audio bandwidth extension |
KR1020157000750A KR102202833B1 (en) | 2012-06-12 | 2013-06-12 | Doubly compatible lossless audio bandwidth extension |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1210373.5A GB201210373D0 (en) | 2012-06-12 | 2012-06-12 | Doubly compatible lossless audio sandwidth extension |
GB1210373.5 | 2012-06-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2013186561A2 WO2013186561A2 (en) | 2013-12-19 |
WO2013186561A3 true WO2013186561A3 (en) | 2014-02-27 |
Family
ID=46605804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2013/051548 WO2013186561A2 (en) | 2012-06-12 | 2013-06-12 | Doubly compatible lossless audio bandwidth extension |
Country Status (8)
Country | Link |
---|---|
US (1) | US9548055B2 (en) |
EP (1) | EP2859548B1 (en) |
JP (1) | JP6264699B2 (en) |
KR (1) | KR102202833B1 (en) |
CN (1) | CN104508740B (en) |
CA (1) | CA2898923C (en) |
GB (3) | GB201210373D0 (en) |
WO (1) | WO2013186561A2 (en) |
Families Citing this family (22)
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GB2524682B (en) * | 2011-10-24 | 2016-04-27 | Graham Craven Peter | Lossless buried data |
GB201210373D0 (en) | 2012-06-12 | 2012-07-25 | Meridian Audio Ltd | Doubly compatible lossless audio sandwidth extension |
EP2980795A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor |
GB2547877B (en) | 2015-12-21 | 2019-08-14 | Graham Craven Peter | Lossless bandsplitting and bandjoining using allpass filters |
GB2546963B (en) * | 2015-12-23 | 2020-10-21 | Law Malcolm | Transparent lossless audio watermarking enhancement |
WO2017132366A1 (en) | 2016-01-26 | 2017-08-03 | Dolby Laboratories Licensing Corporation | Adaptive quantization |
CN106205627B (en) * | 2016-07-14 | 2019-10-18 | 暨南大学 | Digital audio reversible water mark algorithm based on side information prediction and histogram translation |
CN106528040A (en) * | 2016-11-02 | 2017-03-22 | 福建星网视易信息系统有限公司 | Method and apparatus for improving audio quality of android device |
US10354667B2 (en) | 2017-03-22 | 2019-07-16 | Immersion Networks, Inc. | System and method for processing audio data |
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 |
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 |
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 |
EP3483884A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
EP3483880A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Temporal noise shaping |
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 |
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 |
US20200133254A1 (en) * | 2018-05-07 | 2020-04-30 | Strong Force Iot Portfolio 2016, Llc | Methods and systems for data collection, learning, and streaming of machine signals for part identification and operating characteristics determination using the industrial internet of things |
US20210127125A1 (en) * | 2019-10-23 | 2021-04-29 | Facebook Technologies, Llc | Reducing size and power consumption for frame buffers using lossy compression |
CN115512711A (en) * | 2021-06-22 | 2022-12-23 | 腾讯科技(深圳)有限公司 | Speech coding, speech decoding method, apparatus, computer device and storage medium |
CN116974453B (en) * | 2023-09-25 | 2023-12-08 | 北京灵汐科技有限公司 | Signal processing method, signal processing device, signal processor, apparatus, and medium |
Citations (2)
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WO2000079520A1 (en) * | 1999-06-21 | 2000-12-28 | Digital Theater Systems, Inc. | Improving sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
WO2007128662A1 (en) * | 2006-05-05 | 2007-11-15 | Thomson Licensing | Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream |
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EP0400222A1 (en) * | 1989-06-02 | 1990-12-05 | ETAT FRANCAIS représenté par le Ministère des Postes, des Télécommunications et de l'Espace | Digital transmission system using subband coding of a digital signal |
US5596647A (en) * | 1993-06-01 | 1997-01-21 | Matsushita Avionics Development Corporation | Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles |
JP3312538B2 (en) * | 1995-08-18 | 2002-08-12 | 日本ビクター株式会社 | Sound signal processing device |
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 |
EP0798866A2 (en) * | 1996-03-27 | 1997-10-01 | Kabushiki Kaisha Toshiba | Digital data processing system |
JPH09261068A (en) * | 1996-03-27 | 1997-10-03 | Toshiba Corp | Data compression/decoding/transmission/reception/ recording/reproduction method and device |
JP3405109B2 (en) * | 1996-04-17 | 2003-05-12 | 日本ビクター株式会社 | Encoding device, decoding device, recording medium, and digital audio signal reproducing device |
KR100251453B1 (en) * | 1997-08-26 | 2000-04-15 | 윤종용 | High quality coder & decoder and digital multifuntional disc |
JP2003280694A (en) * | 2002-03-26 | 2003-10-02 | Nec Corp | Hierarchical lossless coding and decoding method, hierarchical lossless coding method, hierarchical lossless decoding method and device therefor, and program |
US7424434B2 (en) | 2002-09-04 | 2008-09-09 | Microsoft Corporation | Unified lossy and lossless audio compression |
US7395210B2 (en) * | 2002-11-21 | 2008-07-01 | Microsoft Corporation | Progressive to lossless embedded audio coder (PLEAC) with multiple factorization reversible transform |
JP4679049B2 (en) * | 2003-09-30 | 2011-04-27 | パナソニック株式会社 | Scalable decoding device |
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GB201210373D0 (en) | 2012-06-12 | 2012-07-25 | Meridian Audio Ltd | Doubly compatible lossless audio sandwidth extension |
-
2012
- 2012-06-12 GB GBGB1210373.5A patent/GB201210373D0/en not_active Ceased
-
2013
- 2013-06-12 WO PCT/GB2013/051548 patent/WO2013186561A2/en active Application Filing
- 2013-06-12 CN CN201380038662.1A patent/CN104508740B/en active Active
- 2013-06-12 GB GB1310486.4A patent/GB2503110B/en active Active
- 2013-06-12 KR KR1020157000750A patent/KR102202833B1/en active IP Right Grant
- 2013-06-12 CA CA2898923A patent/CA2898923C/en active Active
- 2013-06-12 JP JP2015516683A patent/JP6264699B2/en active Active
- 2013-06-12 US US14/406,110 patent/US9548055B2/en active Active
- 2013-06-12 EP EP13733412.4A patent/EP2859548B1/en active Active
- 2013-06-13 GB GBGB1310497.1A patent/GB201310497D0/en not_active Ceased
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WO2000079520A1 (en) * | 1999-06-21 | 2000-12-28 | Digital Theater Systems, Inc. | Improving sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
WO2007128662A1 (en) * | 2006-05-05 | 2007-11-15 | Thomson Licensing | Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream |
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Also Published As
Publication number | Publication date |
---|---|
EP2859548A2 (en) | 2015-04-15 |
GB201210373D0 (en) | 2012-07-25 |
CA2898923A1 (en) | 2013-12-19 |
WO2013186561A2 (en) | 2013-12-19 |
CN104508740B (en) | 2017-08-11 |
GB2503110A (en) | 2013-12-18 |
US9548055B2 (en) | 2017-01-17 |
JP2015519615A (en) | 2015-07-09 |
JP6264699B2 (en) | 2018-01-24 |
EP2859548B1 (en) | 2018-01-31 |
KR102202833B1 (en) | 2021-01-14 |
CA2898923C (en) | 2021-03-16 |
GB201310486D0 (en) | 2013-07-24 |
GB201310497D0 (en) | 2013-07-24 |
CN104508740A (en) | 2015-04-08 |
GB2503110B (en) | 2016-06-15 |
KR20150032699A (en) | 2015-03-27 |
US20150154969A1 (en) | 2015-06-04 |
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