BR112015030201A2 - método e aparelho de processamento de diferença de nível intercanal - Google Patents
método e aparelho de processamento de diferença de nível intercanalInfo
- Publication number
- BR112015030201A2 BR112015030201A2 BR112015030201A BR112015030201A BR112015030201A2 BR 112015030201 A2 BR112015030201 A2 BR 112015030201A2 BR 112015030201 A BR112015030201 A BR 112015030201A BR 112015030201 A BR112015030201 A BR 112015030201A BR 112015030201 A2 BR112015030201 A2 BR 112015030201A2
- Authority
- BR
- Brazil
- Prior art keywords
- stereo audio
- frame
- icld
- level difference
- intercanal
- Prior art date
Links
- 238000003672 processing method Methods 0.000 title abstract 2
- 230000005236 sound signal Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 abstract 1
Classifications
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- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- 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
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/03—Application of parametric coding in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
resumo patente de invenção: "método e aparelho de processamento de diferença de nível intercanal". a invenção refere-se a um método e a um dispositivo para processamento de diferença de nível de voltagem intercanal que são providos, que se relacionam ao campo de tecnologias de áudio estéreo, e que são aplicáveis para serem usados quando a diferença de nível de voltagem intercanal é processada. a qualidade de áudio estéreo decodificado pode ser garantida em casos nos quais os sinais alteram rapidamente ou experimentam a perda de pacote, e a transmissão com baixa taxa de bits de um sinal de áudio estéreo é obtida. a icld para cada sub-banda de cada subquadro de cada quadro dos sinais de áudio estéreoé adquirida pelo recebimento dos sinais de áudio estéreo e análise do mesmo quadro a quadro (101). a soma do valor absoluto da icld de cada subquadro em qualquer quadro para os sinais de áudio estéreo é calculada (102). o valor de icld ponderado de cada sub-banda em qualquer quadro é calculado usando o primeiro método de ponderação quando o valor absoluto da diferença entre as somas dos valores absolutos de icld de quaisquer dois subquadros em qualquer quadro é menor do que um limite predeterminado (103), ou o valor ponderado de icld de cada sub-banda em qualquer quadro é calculado usando o segundo método de ponderação (104).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298100.2A CN104299615B (zh) | 2013-07-16 | 2013-07-16 | 一种声道间电平差处理方法及装置 |
| PCT/CN2014/070131 WO2015007075A1 (zh) | 2013-07-16 | 2014-01-04 | 一种声道间电平差处理方法及装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112015030201A2 true BR112015030201A2 (pt) | 2017-07-25 |
Family
ID=52319314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112015030201A BR112015030201A2 (pt) | 2013-07-16 | 2014-01-04 | método e aparelho de processamento de diferença de nível intercanal |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10002615B2 (pt) |
| EP (1) | EP2977984B1 (pt) |
| JP (1) | JP6106336B2 (pt) |
| KR (1) | KR101730362B1 (pt) |
| CN (1) | CN104299615B (pt) |
| BR (1) | BR112015030201A2 (pt) |
| WO (1) | WO2015007075A1 (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10109284B2 (en) | 2016-02-12 | 2018-10-23 | Qualcomm Incorporated | Inter-channel encoding and decoding of multiple high-band audio signals |
| GB201909715D0 (en) | 2019-07-05 | 2019-08-21 | Nokia Technologies Oy | Stereo audio |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009125046A1 (en) * | 2008-04-11 | 2009-10-15 | Nokia Corporation | Processing of signals |
| US9025775B2 (en) * | 2008-07-01 | 2015-05-05 | Nokia Corporation | Apparatus and method for adjusting spatial cue information of a multichannel audio signal |
| WO2010037426A1 (en) * | 2008-10-03 | 2010-04-08 | Nokia Corporation | An apparatus |
| KR101710113B1 (ko) * | 2009-10-23 | 2017-02-27 | 삼성전자주식회사 | 위상 정보와 잔여 신호를 이용한 부호화／복호화 장치 및 방법 |
| EP2323130A1 (en) | 2009-11-12 | 2011-05-18 | Koninklijke Philips Electronics N.V. | Parametric encoding and decoding |
| CN102157151B (zh) * | 2010-02-11 | 2012-10-03 | 华为技术有限公司 | 一种多声道信号编码方法、解码方法、装置和系统 |
| ES2656815T3 (es) * | 2010-03-29 | 2018-02-28 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung | Procesador de audio espacial y procedimiento para proporcionar parámetros espaciales en base a una señal de entrada acústica |
-
2013
- 2013-07-16 CN CN201310298100.2A patent/CN104299615B/zh active Active
-
2014
- 2014-01-04 JP JP2016520245A patent/JP6106336B2/ja not_active Expired - Fee Related
- 2014-01-04 BR BR112015030201A patent/BR112015030201A2/pt not_active IP Right Cessation
- 2014-01-04 KR KR1020157032153A patent/KR101730362B1/ko active IP Right Grant
- 2014-01-04 EP EP14826895.6A patent/EP2977984B1/en not_active Not-in-force
- 2014-01-04 WO PCT/CN2014/070131 patent/WO2015007075A1/zh active Application Filing
-
2015
- 2015-11-04 US US14/931,975 patent/US10002615B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP2977984B1 (en) | 2018-12-12 |
| EP2977984A1 (en) | 2016-01-27 |
| JP2016522451A (ja) | 2016-07-28 |
| WO2015007075A1 (zh) | 2015-01-22 |
| US10002615B2 (en) | 2018-06-19 |
| US20160055856A1 (en) | 2016-02-25 |
| KR20150140802A (ko) | 2015-12-16 |
| CN104299615A (zh) | 2015-01-21 |
| EP2977984A4 (en) | 2016-06-29 |
| KR101730362B1 (ko) | 2017-04-26 |
| CN104299615B (zh) | 2017-11-17 |
| JP6106336B2 (ja) | 2017-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
| B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
| B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 8A ANUIDADE. |
|
| B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2651 DE 26-10-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |