EP0905933A3 - Method and system for mixing audio signals - Google Patents

Method and system for mixing audio signals Download PDF

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Publication number
EP0905933A3
EP0905933A3 EP97119295A EP97119295A EP0905933A3 EP 0905933 A3 EP0905933 A3 EP 0905933A3 EP 97119295 A EP97119295 A EP 97119295A EP 97119295 A EP97119295 A EP 97119295A EP 0905933 A3 EP0905933 A3 EP 0905933A3
Authority
EP
European Patent Office
Prior art keywords
sound
signal
signals
summed
audio signals
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.)
Withdrawn
Application number
EP97119295A
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German (de)
French (fr)
Other versions
EP0905933A2 (en
Inventor
Ulrich Dr. Horbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Studer Professional Audio GmbH
Original Assignee
Studer Professional Audio AG
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Filing date
Publication date
Application filed by Studer Professional Audio AG filed Critical Studer Professional Audio AG
Publication of EP0905933A2 publication Critical patent/EP0905933A2/en
Publication of EP0905933A3 publication Critical patent/EP0905933A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Mischen von Tonsignalen. Um dabei mit möglichst geringem technischem Aufwand eine möglichst natürliche Wiedergabe von Tonsignalen über eine Mehrzahl Lautsprecher zu erreiochen, wenn eine dazu abweichende Zahl Schallquellen vorliegt, soll jedes Tonsignal aufgeteilt und wahlweise verzögert, jedes aufgeteilte und wahlweise verzögerte Tonsignal wahlweise gewichtet und mit entsprechenden weiteren Tonsignalen zu einem Zwischensignal (1 bis K) addiert werden. Dann wird jedes Zwischensignal aufgeteilt, gefiltert und anschliessend mit den anderen Zwischensignalen summiert und die summierten Zwischensignale ergeben zusammen ein Ausgangssignal für einen Lautsprecher.

Figure 00000001
The invention relates to a method and a device for mixing sound signals. In order to achieve the most natural possible reproduction of sound signals via a plurality of loudspeakers with as little technical effort as possible, if there is a different number of sound sources, each sound signal should be divided and optionally delayed, each split and optionally delayed sound signal optionally weighted and with corresponding further sound signals an intermediate signal (1 to K) can be added. Then each intermediate signal is divided, filtered and then summed with the other intermediate signals, and the summed intermediate signals together produce an output signal for a loudspeaker.
Figure 00000001
EP97119295A 1997-09-24 1997-11-05 Method and system for mixing audio signals Withdrawn EP0905933A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2248/97 1997-09-24
CH224897 1997-09-24
CH224897 1997-09-24

Publications (2)

Publication Number Publication Date
EP0905933A2 EP0905933A2 (en) 1999-03-31
EP0905933A3 true EP0905933A3 (en) 2004-03-24

Family

ID=4229340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119295A Withdrawn EP0905933A3 (en) 1997-09-24 1997-11-05 Method and system for mixing audio signals

Country Status (2)

Country Link
US (1) US6363155B1 (en)
EP (1) EP0905933A3 (en)

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US7698009B2 (en) * 2005-10-27 2010-04-13 Avid Technology, Inc. Control surface with a touchscreen for editing surround sound
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US20080175400A1 (en) * 2007-01-24 2008-07-24 Napoletano Nathaniel M Comm-check surrogate for communications networks
KR101418023B1 (en) * 2008-03-14 2014-07-09 삼성전자주식회사 Apparatus and method for automatic gain control using phase information
US8971542B2 (en) * 2009-06-12 2015-03-03 Conexant Systems, Inc. Systems and methods for speaker bar sound enhancement
DE102010005067B4 (en) * 2010-01-15 2022-10-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Device for sound transmission
EP2600343A1 (en) * 2011-12-02 2013-06-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for merging geometry - based spatial audio coding streams
US9084058B2 (en) 2011-12-29 2015-07-14 Sonos, Inc. Sound field calibration using listener localization
US9690539B2 (en) 2012-06-28 2017-06-27 Sonos, Inc. Speaker calibration user interface
US9219460B2 (en) 2014-03-17 2015-12-22 Sonos, Inc. Audio settings based on environment
US9706323B2 (en) 2014-09-09 2017-07-11 Sonos, Inc. Playback device calibration
US9106192B2 (en) 2012-06-28 2015-08-11 Sonos, Inc. System and method for device playback calibration
US9264839B2 (en) 2014-03-17 2016-02-16 Sonos, Inc. Playback device configuration based on proximity detection
US9952825B2 (en) 2014-09-09 2018-04-24 Sonos, Inc. Audio processing algorithms
US9910634B2 (en) 2014-09-09 2018-03-06 Sonos, Inc. Microphone calibration
US9891881B2 (en) 2014-09-09 2018-02-13 Sonos, Inc. Audio processing algorithm database
US10127006B2 (en) 2014-09-09 2018-11-13 Sonos, Inc. Facilitating calibration of an audio playback device
WO2016172593A1 (en) 2015-04-24 2016-10-27 Sonos, Inc. Playback device calibration user interfaces
US10664224B2 (en) 2015-04-24 2020-05-26 Sonos, Inc. Speaker calibration user interface
US9538305B2 (en) 2015-07-28 2017-01-03 Sonos, Inc. Calibration error conditions
EP3531714B1 (en) 2015-09-17 2022-02-23 Sonos Inc. Facilitating calibration of an audio playback device
US9693165B2 (en) 2015-09-17 2017-06-27 Sonos, Inc. Validation of audio calibration using multi-dimensional motion check
US9743207B1 (en) 2016-01-18 2017-08-22 Sonos, Inc. Calibration using multiple recording devices
US11106423B2 (en) 2016-01-25 2021-08-31 Sonos, Inc. Evaluating calibration of a playback device
US10003899B2 (en) 2016-01-25 2018-06-19 Sonos, Inc. Calibration with particular locations
US9864574B2 (en) 2016-04-01 2018-01-09 Sonos, Inc. Playback device calibration based on representation spectral characteristics
US9860662B2 (en) 2016-04-01 2018-01-02 Sonos, Inc. Updating playback device configuration information based on calibration data
US9763018B1 (en) * 2016-04-12 2017-09-12 Sonos, Inc. Calibration of audio playback devices
US9794710B1 (en) 2016-07-15 2017-10-17 Sonos, Inc. Spatial audio correction
US9860670B1 (en) 2016-07-15 2018-01-02 Sonos, Inc. Spectral correction using spatial calibration
US10372406B2 (en) 2016-07-22 2019-08-06 Sonos, Inc. Calibration interface
US10459684B2 (en) 2016-08-05 2019-10-29 Sonos, Inc. Calibration of a playback device based on an estimated frequency response
US10699729B1 (en) * 2018-06-08 2020-06-30 Amazon Technologies, Inc. Phase inversion for virtual assistants and mobile music apps
US11206484B2 (en) 2018-08-28 2021-12-21 Sonos, Inc. Passive speaker authentication
US10299061B1 (en) 2018-08-28 2019-05-21 Sonos, Inc. Playback device calibration
US10734965B1 (en) 2019-08-12 2020-08-04 Sonos, Inc. Audio calibration of a portable playback device

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Non-Patent Citations (1)

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Also Published As

Publication number Publication date
US6363155B1 (en) 2002-03-26
EP0905933A2 (en) 1999-03-31

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