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 entrada

Info

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
Application number
BRPI0520802-5A
Other languages
English (en)
Inventor
Hellmuth Oliver
Juergen Herre
Harald Popp
Andreas Walter
Original Assignee
Fraunhofer Gesellschaft Ev
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft Ev filed Critical Fraunhofer Gesellschaft Ev
Publication of BRPI0520802A2 publication Critical patent/BRPI0520802A2/pt
Publication of BRPI0520802B1 publication Critical patent/BRPI0520802B1/pt

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)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Circuit For Audible Band Transducer (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.
BRPI0520802-5A 2005-12-20 2005-12-20 Equipamento e método para a sintetização de três canais de saída usando dois canais de entrada BRPI0520802B1 (pt)

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 (14)

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)
IL (1) IL191688A (pt)
NO (1) NO339830B1 (pt)
PL (1) PL1964442T3 (pt)
WO (1) WO2007071270A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
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
CN104604257B (zh) 2012-08-31 2016-05-25 杜比实验室特许公司 用于在各种收听环境中渲染并且回放基于对象的音频的系统
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
CN106165453A (zh) * 2013-10-02 2016-11-23 斯托明瑞士有限责任公司 用于下混多通道信号和用于上混下混信号的方法和装置
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)

* Cited by examiner, † Cited by third party
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
AU1811099A (en) * 1997-12-08 1999-06-28 Thomson Licensing S.A. Peak to peak signal detector for audio system
CA2414501A1 (en) * 2000-07-11 2002-01-17 American Technology Corporation 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

Also Published As

Publication number Publication date
CA2632394C (en) 2013-07-16
EP1964442B1 (en) 2010-02-17
CN101341792A (zh) 2009-01-07
PL1964442T3 (pl) 2010-07-30
HK1114994A1 (en) 2008-11-14
CA2632394A1 (en) 2007-06-28
BRPI0520802B1 (pt) 2019-04-16
IL191688A0 (en) 2008-12-29
ES2340784T3 (es) 2010-06-09
KR20080070066A (ko) 2008-07-29
DE602005019484D1 (de) 2010-04-01
ATE458364T1 (de) 2010-03-15
AU2005339439B2 (en) 2010-07-22
IL191688A (en) 2012-05-31
NO20083188L (no) 2008-07-17
WO2007071270A1 (en) 2007-06-28
JP4792086B2 (ja) 2011-10-12
KR100994294B1 (ko) 2010-11-12
NO339830B1 (no) 2017-02-06
AU2005339439A1 (en) 2007-06-28
EP1964442A1 (en) 2008-09-03
CN101341792B (zh) 2010-08-18
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