BRPI0520802A2 - equipamento e método para a sintetização de três canais de saìda usando dois canais de entrada - Google Patents
equipamento e método para a sintetização de três canais de saìda usando dois canais de entradaInfo
- Publication number
- BRPI0520802A2 BRPI0520802A2 BRPI0520802-5A BRPI0520802A BRPI0520802A2 BR PI0520802 A2 BRPI0520802 A2 BR PI0520802A2 BR PI0520802 A BRPI0520802 A BR PI0520802A BR PI0520802 A2 BRPI0520802 A2 BR PI0520802A2
- Authority
- BR
- Brazil
- Prior art keywords
- channels
- speaker
- signal components
- synthesizing
- input channels
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Time-Division Multiplex Systems (AREA)
- Circuit For Audible Band Transducer (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Harvester Elements (AREA)
Abstract
EQUIPAMENTO E MéTODO PARA A SINTETIZAçãO DE TRêS CANAIS DE SAìDA USANDO DOIS CANAIS DE ENTRADA. Para a sintetização de pelo menos três canais de saída usando dois canais estéreo de entrada, os canais estéreo de entrada são analisados (15) para detectar as componentes de sinal que ocorrem em ambos os canais de entrada. Um gerador de sinais (16) opera para introduzir pelo menos uma parte das componentes do sinal detectado no segundo canal (12b) associado ao segundo alto-falante em um esquema pretendido de alto-falantes, que está posicionado entre um primeiro e um terceiro alto-falante no esquema de alto-falantes. Quando, entretanto, o envio de todas as componentes do sinal detectado resultar em uma situação de clipping, então somente parte das componentes do sinal detectado é enviada ao segundo canal como um canal central real e o restante é localizado no primeiro e no terceiro canais como um canal central fantasma.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2005/013738 WO2007071270A1 (en) | 2005-12-20 | 2005-12-20 | Apparatus and method for synthesizing three output channels using two input channels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BRPI0520802A2 true BRPI0520802A2 (pt) | 2009-06-23 |
| BRPI0520802B1 BRPI0520802B1 (pt) | 2019-04-16 |
Family
ID=37027614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0520802-5A BRPI0520802B1 (pt) | 2005-12-20 | 2005-12-20 | Equipamento e método para a sintetização de três canais de saída usando dois canais de entrada |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP1964442B1 (pt) |
| JP (1) | JP4792086B2 (pt) |
| KR (1) | KR100994294B1 (pt) |
| CN (1) | CN101341792B (pt) |
| AT (1) | ATE458364T1 (pt) |
| AU (1) | AU2005339439B2 (pt) |
| BR (1) | BRPI0520802B1 (pt) |
| CA (1) | CA2632394C (pt) |
| DE (1) | DE602005019484D1 (pt) |
| ES (1) | ES2340784T3 (pt) |
| HK (1) | HK1114994A1 (pt) |
| IL (1) | IL191688A (pt) |
| NO (1) | NO339830B1 (pt) |
| PL (1) | PL1964442T3 (pt) |
| WO (1) | WO2007071270A1 (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7965848B2 (en) * | 2006-03-29 | 2011-06-21 | Dolby International Ab | Reduced number of channels decoding |
| JP5251731B2 (ja) * | 2009-05-29 | 2013-07-31 | ヤマハ株式会社 | ミキシングコンソールおよびプログラム |
| US8000485B2 (en) * | 2009-06-01 | 2011-08-16 | Dts, Inc. | Virtual audio processing for loudspeaker or headphone playback |
| JP5418357B2 (ja) * | 2010-03-26 | 2014-02-19 | ヤマハ株式会社 | デジタルミキサおよびプログラム |
| JP5929301B2 (ja) * | 2012-02-23 | 2016-06-01 | オンキヨー株式会社 | 時間差補正方法、音声信号処理装置、再生装置およびプログラム |
| EP2891338B1 (en) | 2012-08-31 | 2017-10-25 | Dolby Laboratories Licensing Corporation | System for rendering and playback of object based audio in various listening environments |
| CN104376857A (zh) * | 2013-08-16 | 2015-02-25 | 联想(北京)有限公司 | 信息处理的方法及电子设备 |
| KR20160072131A (ko) * | 2013-10-02 | 2016-06-22 | 슈트로밍스위스 게엠베하 | 다채널 신호의 다운믹스 및 다운믹스 신호의 업믹스 방법 및 장치 |
| CN105828271B (zh) * | 2015-01-09 | 2019-07-05 | 南京青衿信息科技有限公司 | 一种将两个声道声音信号转换成三个声道信号的方法 |
| US11825026B1 (en) * | 2020-12-10 | 2023-11-21 | Hear360 Inc. | Spatial audio virtualization for conference call applications |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770000A (en) * | 1980-10-20 | 1982-04-30 | Matsushita Electric Ind Co Ltd | Stereo playback device |
| JPH05236599A (ja) * | 1992-02-21 | 1993-09-10 | Clarion Co Ltd | ３スピーカの音響再生装置 |
| JP4276380B2 (ja) * | 1997-12-08 | 2009-06-10 | トムソン ライセンシング | オーディオコンプレッサ用のピーク−ピーク検出回路および音量制御システム |
| EP1319224A4 (en) * | 2000-07-11 | 2007-03-14 | American Tech Corp | DYNAMIC POWER SHARING IN A MULTI-CHANNEL SOUND SYSTEM |
| US7298852B2 (en) * | 2001-07-11 | 2007-11-20 | American Technology Corporation | Dynamic power sharing in a multi-channel sound system |
| CN1270583C (zh) * | 2002-06-19 | 2006-08-16 | 普诚科技股份有限公司 | 双声道转多声道的音响处理器 |
-
2005
- 2005-12-20 EP EP05822900A patent/EP1964442B1/en active Active
- 2005-12-20 ES ES05822900T patent/ES2340784T3/es active Active
- 2005-12-20 AU AU2005339439A patent/AU2005339439B2/en active Active
- 2005-12-20 WO PCT/EP2005/013738 patent/WO2007071270A1/en active Application Filing
- 2005-12-20 PL PL05822900T patent/PL1964442T3/pl unknown
- 2005-12-20 JP JP2008546134A patent/JP4792086B2/ja active Active
- 2005-12-20 CN CN200580052379XA patent/CN101341792B/zh active Active
- 2005-12-20 CA CA2632394A patent/CA2632394C/en active Active
- 2005-12-20 BR BRPI0520802-5A patent/BRPI0520802B1/pt active IP Right Grant
- 2005-12-20 KR KR1020087014463A patent/KR100994294B1/ko active IP Right Grant
- 2005-12-20 DE DE602005019484T patent/DE602005019484D1/de active Active
- 2005-12-20 AT AT05822900T patent/ATE458364T1/de active
-
2008
- 2008-05-25 IL IL191688A patent/IL191688A/en active IP Right Grant
- 2008-07-17 NO NO20083188A patent/NO339830B1/no unknown
- 2008-09-22 HK HK08110460.2A patent/HK1114994A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HK1114994A1 (en) | 2008-11-14 |
| CN101341792A (zh) | 2009-01-07 |
| ES2340784T3 (es) | 2010-06-09 |
| AU2005339439B2 (en) | 2010-07-22 |
| CA2632394C (en) | 2013-07-16 |
| WO2007071270A1 (en) | 2007-06-28 |
| KR100994294B1 (ko) | 2010-11-12 |
| JP4792086B2 (ja) | 2011-10-12 |
| IL191688A (en) | 2012-05-31 |
| CA2632394A1 (en) | 2007-06-28 |
| PL1964442T3 (pl) | 2010-07-30 |
| EP1964442A1 (en) | 2008-09-03 |
| NO339830B1 (no) | 2017-02-06 |
| EP1964442B1 (en) | 2010-02-17 |
| KR20080070066A (ko) | 2008-07-29 |
| BRPI0520802B1 (pt) | 2019-04-16 |
| NO20083188L (no) | 2008-07-17 |
| AU2005339439A1 (en) | 2007-06-28 |
| ATE458364T1 (de) | 2010-03-15 |
| IL191688A0 (en) | 2008-12-29 |
| CN101341792B (zh) | 2010-08-18 |
| DE602005019484D1 (de) | 2010-04-01 |
| JP2009520419A (ja) | 2009-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE 4A. ANUIDADE. |
|
| B08H | Application fees: decision cancelled [chapter 8.8 patent gazette] |
Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 2174 DE 04/09/2012. |
|
| B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 16/04/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 16/04/2019, OBSERVADAS AS CONDICOES LEGAIS |