ES2783975T3 - Codificación multicanal - Google Patents
Codificación multicanal Download PDFInfo
- Publication number
- ES2783975T3 ES2783975T3 ES17715567T ES17715567T ES2783975T3 ES 2783975 T3 ES2783975 T3 ES 2783975T3 ES 17715567 T ES17715567 T ES 17715567T ES 17715567 T ES17715567 T ES 17715567T ES 2783975 T3 ES2783975 T3 ES 2783975T3
- Authority
- ES
- Spain
- Prior art keywords
- windows
- window
- signal
- stereo
- encoder
- 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.)
- Active
Links
- 230000005236 sound signal Effects 0.000 claims abstract description 111
- 238000000034 method Methods 0.000 claims description 49
- 238000012545 processing Methods 0.000 claims description 22
- 238000003786 synthesis reaction Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000010295 mobile communication Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 description 37
- 238000005070 sampling Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000011017 operating method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000024875 Infantile dystonia-parkinsonism Diseases 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 208000001543 infantile parkinsonism-dystonia Diseases 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000001364 causal effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662310635P | 2016-03-18 | 2016-03-18 | |
| US15/461,312 US9959877B2 (en) | 2016-03-18 | 2017-03-16 | Multi channel coding |
| PCT/US2017/023035 WO2017161315A1 (en) | 2016-03-18 | 2017-03-17 | Multi channel coding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2783975T3 true ES2783975T3 (es) | 2020-09-21 |
Family
ID=58489063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES17715567T Active ES2783975T3 (es) | 2016-03-18 | 2017-03-17 | Codificación multicanal |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US9959877B2 (enExample) |
| EP (1) | EP3430623B1 (enExample) |
| JP (1) | JP6768824B2 (enExample) |
| KR (1) | KR102168054B1 (enExample) |
| CN (1) | CN108780651B (enExample) |
| BR (1) | BR112018068491A2 (enExample) |
| CA (1) | CA3014784C (enExample) |
| ES (1) | ES2783975T3 (enExample) |
| TW (1) | TWI640980B (enExample) |
| WO (1) | WO2017161315A1 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11545165B2 (en) | 2018-07-03 | 2023-01-03 | Panasonic Intellectual Property Corporation Of America | Encoding device and encoding method using a determined prediction parameter based on an energy difference between channels |
| WO2020094263A1 (en) | 2018-11-05 | 2020-05-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and audio signal processor, for providing a processed audio signal representation, audio decoder, audio encoder, methods and computer programs |
| CA3193359A1 (en) * | 2019-06-14 | 2020-12-17 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Parameter encoding and decoding |
| WO2021155460A1 (en) * | 2020-02-03 | 2021-08-12 | Voiceage Corporation | Switching between stereo coding modes in a multichannel sound codec |
| WO2021260825A1 (ja) * | 2020-06-24 | 2021-12-30 | 日本電信電話株式会社 | 音信号符号化方法、音信号符号化装置、プログラム及び記録媒体 |
| WO2021260826A1 (ja) * | 2020-06-24 | 2021-12-30 | 日本電信電話株式会社 | 音信号復号方法、音信号復号装置、プログラム及び記録媒体 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7072726B2 (en) * | 2002-06-19 | 2006-07-04 | Microsoft Corporation | Converting M channels of digital audio data into N channels of digital audio data |
| US7325023B2 (en) * | 2003-09-29 | 2008-01-29 | Sony Corporation | Method of making a window type decision based on MDCT data in audio encoding |
| US20050137729A1 (en) | 2003-12-18 | 2005-06-23 | Atsuhiro Sakurai | Time-scale modification stereo audio signals |
| US20050276430A1 (en) * | 2004-05-28 | 2005-12-15 | Microsoft Corporation | Fast headphone virtualization |
| EP3640941A1 (en) * | 2008-10-08 | 2020-04-22 | Fraunhofer Gesellschaft zur Förderung der Angewand | Multi-resolution switched audio encoding/decoding scheme |
| CA2966469C (en) | 2009-01-28 | 2020-05-05 | Dolby International Ab | Improved harmonic transposition |
| BR122019013299B1 (pt) * | 2010-04-09 | 2021-01-05 | Dolby International Ab | aparelho e método para emitir um sinal de áudio esterofônico possuindo um canal esquerdo e um canal direito e meio legível por computador não transitório |
| WO2012048472A1 (en) | 2010-10-15 | 2012-04-19 | Huawei Technologies Co., Ltd. | Signal analyzer, signal analyzing method, signal synthesizer, signal synthesizing method, windower, transformer and inverse transformer |
| EP2980791A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Processor, method and computer program for processing an audio signal using truncated analysis or synthesis window overlap portions |
-
2017
- 2017-03-16 US US15/461,312 patent/US9959877B2/en active Active
- 2017-03-17 CN CN201780015738.7A patent/CN108780651B/zh active Active
- 2017-03-17 JP JP2018548749A patent/JP6768824B2/ja active Active
- 2017-03-17 WO PCT/US2017/023035 patent/WO2017161315A1/en not_active Ceased
- 2017-03-17 BR BR112018068491-0A patent/BR112018068491A2/pt active Search and Examination
- 2017-03-17 ES ES17715567T patent/ES2783975T3/es active Active
- 2017-03-17 EP EP17715567.8A patent/EP3430623B1/en active Active
- 2017-03-17 KR KR1020187026599A patent/KR102168054B1/ko active Active
- 2017-03-17 TW TW106109041A patent/TWI640980B/zh active
- 2017-03-17 CA CA3014784A patent/CA3014784C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| BR112018068491A2 (pt) | 2019-01-22 |
| JP6768824B2 (ja) | 2020-10-14 |
| TWI640980B (zh) | 2018-11-11 |
| KR102168054B1 (ko) | 2020-10-20 |
| EP3430623B1 (en) | 2020-01-01 |
| WO2017161315A1 (en) | 2017-09-21 |
| TW201737242A (zh) | 2017-10-16 |
| US20170270936A1 (en) | 2017-09-21 |
| EP3430623A1 (en) | 2019-01-23 |
| CA3014784A1 (en) | 2017-09-21 |
| JP2019512737A (ja) | 2019-05-16 |
| CN108780651A (zh) | 2018-11-09 |
| CN108780651B (zh) | 2023-05-30 |
| CA3014784C (en) | 2023-04-25 |
| KR20180125475A (ko) | 2018-11-23 |
| US9959877B2 (en) | 2018-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2783975T3 (es) | Codificación multicanal | |
| US11107483B2 (en) | Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal | |
| ES2965487T3 (es) | Aparato y procedimiento para la codificación o decodificación de una señal multicanal mediante el uso de repetición de muestreo de dominio espectral | |
| ES2934646T3 (es) | Sistema de procesamiento de audio | |
| ES2734361T3 (es) | Transposición armónica mejorada de productos de cruce | |
| ES2733878T3 (es) | Codificación mejorada de señales de audio digitales multicanales | |
| ES2710774T3 (es) | Mezcla de matriz basada en multipletes para audio de múltiples canales de alta cantidad de canales | |
| ES2555579T3 (es) | Codificador de audio multicanal y método para codificar una señal de audio multicanal | |
| ES2703327T3 (es) | Codificador, decodificador y métodos para codificación espacial de objetos de audio de multirresolución retrocompatible | |
| ES2940283T3 (es) | Filtración eficiente con un banco de filtros modulado complejo | |
| ES2884133T3 (es) | Conformación simultánea de ruido en el dominio del tiempo y el dominio de la frecuencia para transformaciones TDAC | |
| ES3017425T3 (en) | Method and apparatus for controlling multichannel audio frame loss concealment | |
| ES2965741T3 (es) | Aparato para codificar o decodificar una señal multicanal codificada mediante una señal de relleno generada por un filtro de banda ancha | |
| JP5163545B2 (ja) | オーディオ復号装置及びオーディオ復号方法 | |
| ES2774334T3 (es) | Estimación de forma de ganancia para mejorar el rastreo de características temporales de banda alta | |
| RU2696952C2 (ru) | Аудиокодировщик и декодер | |
| ES2807258T3 (es) | Escalado para circuitería de forma de ganancia | |
| ES2894625T3 (es) | Ajuste y mapeo espectral de extensión de ancho de banda intercanal | |
| ES2643828T3 (es) | Procedimiento, aparato, dispositivo, medio legible por ordenador para la extensión de ancho de banda de una señal de audio que usa una excitación de banda alta escalada | |
| ES2975073T3 (es) | Codificador, descodificador, procedimiento de codificación, procedimiento de descodificación y programa | |
| US10210874B2 (en) | Multi channel coding | |
| ES2965084T3 (es) | Determinación de correcciones a aplicar a una señal de audio multicanal, codificación y decodificación asociadas |