ATE458364T1 - APPARATUS AND METHOD FOR SYNTHESIZING THREE OUTPUT CHANNELS USING TWO INPUT CHANNELS - Google Patents

APPARATUS AND METHOD FOR SYNTHESIZING THREE OUTPUT CHANNELS USING TWO INPUT CHANNELS

Info

Publication number
ATE458364T1
ATE458364T1 AT05822900T AT05822900T ATE458364T1 AT E458364 T1 ATE458364 T1 AT E458364T1 AT 05822900 T AT05822900 T AT 05822900T AT 05822900 T AT05822900 T AT 05822900T AT E458364 T1 ATE458364 T1 AT E458364T1
Authority
AT
Austria
Prior art keywords
channels
speaker
signal components
input channels
synthesizing
Prior art date
Application number
AT05822900T
Other languages
German (de)
Inventor
Oliver Hellmuth
Juergen Herre
Harald Popp
Andreas Walter
Original Assignee
Fraunhofer Ges Forschung
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 Ges Forschung filed Critical Fraunhofer Ges Forschung
Application granted granted Critical
Publication of ATE458364T1 publication Critical patent/ATE458364T1/en

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

For synthesizing at least three output channels using two stereo input channels, the stereo input channels are analyzed (15) to detect signal components occurring in both input channels. A signal generator (16) is operative to introduce at least a part of the detected signal components into the second channel (12b) associated with a second speaker in an intended speaker scheme, which is positioned between a first and a third speaker in the speaker scheme. When, however, feeding of the complete detected signal components would result in a clipping situation, then only a part of the detected signal components is fed into the second channel as a real center channel and the remainder is located in the first and third channels as a phantom center channel.
AT05822900T 2005-12-20 2005-12-20 APPARATUS AND METHOD FOR SYNTHESIZING THREE OUTPUT CHANNELS USING TWO INPUT CHANNELS ATE458364T1 (en)

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 (1)

Publication Number Publication Date
ATE458364T1 true ATE458364T1 (en) 2010-03-15

Family

ID=37027614

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05822900T ATE458364T1 (en) 2005-12-20 2005-12-20 APPARATUS AND METHOD FOR SYNTHESIZING THREE OUTPUT CHANNELS USING TWO INPUT CHANNELS

Country Status (14)

Country Link
EP (1) EP1964442B1 (en)
JP (1) JP4792086B2 (en)
KR (1) KR100994294B1 (en)
CN (1) CN101341792B (en)
AT (1) ATE458364T1 (en)
AU (1) AU2005339439B2 (en)
BR (1) BRPI0520802B1 (en)
CA (1) CA2632394C (en)
DE (1) DE602005019484D1 (en)
ES (1) ES2340784T3 (en)
IL (1) IL191688A (en)
NO (1) NO339830B1 (en)
PL (1) PL1964442T3 (en)
WO (1) WO2007071270A1 (en)

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 (en) * 2009-05-29 2013-07-31 ヤマハ株式会社 Mixing console and program
US8000485B2 (en) * 2009-06-01 2011-08-16 Dts, Inc. Virtual audio processing for loudspeaker or headphone playback
JP5418357B2 (en) * 2010-03-26 2014-02-19 ヤマハ株式会社 Digital mixer and program
JP5929301B2 (en) * 2012-02-23 2016-06-01 オンキヨー株式会社 Time difference correction method, audio signal processing device, playback device, and program
JP6085029B2 (en) * 2012-08-31 2017-02-22 ドルビー ラボラトリーズ ライセンシング コーポレイション System for rendering and playing back audio based on objects in various listening environments
CN104376857A (en) * 2013-08-16 2015-02-25 联想(北京)有限公司 Information processing method and electronic equipment
KR20160072130A (en) * 2013-10-02 2016-06-22 슈트로밍스위스 게엠베하 Derivation of multichannel signals from two or more basic signals
CN105828271B (en) * 2015-01-09 2019-07-05 南京青衿信息科技有限公司 A method of two channel sound signals are converted into three sound channel signals
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 (en) * 1992-02-21 1993-09-10 Clarion Co Ltd Acoustic reproducing device with three speakers
KR100582258B1 (en) * 1997-12-08 2006-05-24 톰슨 라이센싱 Peak-to-Peak Signal Detector for Audio Systems
US7298852B2 (en) * 2001-07-11 2007-11-20 American Technology Corporation Dynamic power sharing in a multi-channel sound system
JP2004511927A (en) * 2000-07-11 2004-04-15 アメリカン・テクノロジー・コーポレーション Power amplifier for parametric speakers
CN1270583C (en) * 2002-06-19 2006-08-16 普诚科技股份有限公司 Two-channel to multi-channel audio processor

Also Published As

Publication number Publication date
KR20080070066A (en) 2008-07-29
BRPI0520802A2 (en) 2009-06-23
IL191688A0 (en) 2008-12-29
EP1964442B1 (en) 2010-02-17
JP2009520419A (en) 2009-05-21
CN101341792A (en) 2009-01-07
KR100994294B1 (en) 2010-11-12
AU2005339439B2 (en) 2010-07-22
DE602005019484D1 (en) 2010-04-01
CA2632394A1 (en) 2007-06-28
ES2340784T3 (en) 2010-06-09
NO20083188L (en) 2008-07-17
NO339830B1 (en) 2017-02-06
AU2005339439A1 (en) 2007-06-28
EP1964442A1 (en) 2008-09-03
WO2007071270A1 (en) 2007-06-28
HK1114994A1 (en) 2008-11-14
CA2632394C (en) 2013-07-16
BRPI0520802B1 (en) 2019-04-16
CN101341792B (en) 2010-08-18
PL1964442T3 (en) 2010-07-30
IL191688A (en) 2012-05-31
JP4792086B2 (en) 2011-10-12

Similar Documents

Publication Publication Date Title
NO20083188L (en) Apparatus and method for synthesizing three output channels using two input channels
DE602006021347D1 (en) IMPROVED SIGNAL PROCESSING METHOD FOR MULTI-CHANNEL AUDIORE CONSTRUCTION
ATE507555T1 (en) DEVICE AND METHOD FOR GENERATING A MULTI-CHANNEL SIGNAL WITH VOICE SIGNAL PROCESSING
ATE526659T1 (en) METHOD AND DEVICE FOR ENCODING AN AUDIO SIGNAL
SG150572A1 (en) Coding model selection
ATE555618T1 (en) APPARATUS AND METHOD FOR GENERATING A NUMBER OF SPEAKER SIGNALS FOR A SPEAKER ARRAY DEFINING A PLAYBACK SPACE
EP2278582A3 (en) A method and an apparatus for processing an audio signal
EP2133707A3 (en) Signal processing apparatus, signal processing method, and program
ATE556329T1 (en) METHOD AND DEVICE FOR LOCALIZING A SOUND SOURCE
DE60316517D1 (en) Method and device for recording interference signals
DE602005021648D1 (en) COMBINATION OF SOUND SIGNALS BY AUDITOR SCENIC ANALYSIS
ATE324023T1 (en) DEVICE FOR LEVEL CORRECTION IN A WAVE FIELD SYNTHESIS SYSTEM
ATE543111T1 (en) DEVICE AND METHOD FOR DETECTING AN OBJECT IN OR AT A LOCKABLE OPENING
MX2010002572A (en) A method and an apparatus of decoding an audio signal.
AU2003303362A1 (en) Audio reproduction apparatus, feedback system and method
DE60329283D1 (en) METHOD FOR THE DYNAMIC DETERMINATION OF TIME CONSTANTS, METHOD FOR LEVEL DETECTION, METHOD FOR COMPRESSING AN ELECTRIC AUDIO SIGNAL AND HEARING DEVICE USING THE METHOD OF COMPRESSING THE COMPRESSION METHOD
ATE517411T1 (en) METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR STEREO CODING
AU2003285629A1 (en) Audio signal analysing method and apparatus
BRPI0506533A (en) equipment and method for constructing a multichannel output signal or for generating a downmix signal
AU2003291933A1 (en) Method for determining acoustic features of acoustic signals for the analysis of unknown acoustic signals and for modifying sound generation
DE502004004838D1 (en) Device and method for adjusting a hearing aid
TW200625892A (en) Block modulation
FI20071018L (en) Systems and methods for analyzing and modifying an audio signal
DE69608316D1 (en) DEVICE AND METHOD FOR DETERMINING SIGNAL QUALITY
WO2009071911A3 (en) An improved apparatus and method for reproduction of stereo sound

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification

Ref document number: 1964442

Country of ref document: EP