EP0772374A3 - Method and apparatus for controlling the performance of a loudspeaker in a room - Google Patents

Method and apparatus for controlling the performance of a loudspeaker in a room Download PDF

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Publication number
EP0772374A3
EP0772374A3 EP96203005A EP96203005A EP0772374A3 EP 0772374 A3 EP0772374 A3 EP 0772374A3 EP 96203005 A EP96203005 A EP 96203005A EP 96203005 A EP96203005 A EP 96203005A EP 0772374 A3 EP0772374 A3 EP 0772374A3
Authority
EP
European Patent Office
Prior art keywords
room
loudspeaker
performance
controlling
loudspeaker driver
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.)
Granted
Application number
EP96203005A
Other languages
German (de)
French (fr)
Other versions
EP0772374B1 (en
EP0772374A2 (en
Inventor
Jan Abildgaard Pedersen
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.)
Bang and Olufsen AS
Original Assignee
Bang and Olufsen AS
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 Bang and Olufsen AS filed Critical Bang and Olufsen AS
Publication of EP0772374A2 publication Critical patent/EP0772374A2/en
Publication of EP0772374A3 publication Critical patent/EP0772374A3/en
Application granted granted Critical
Publication of EP0772374B1 publication Critical patent/EP0772374B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • 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
    • H04S7/301—Automatic calibration of stereophonic sound system, e.g. with test microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • 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
    • H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space

Landscapes

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

Abstract

A method for controlling the performance of a loudspeaker in a room, by determining in a first acoustic environment suitable parameters defining a first complex transfer function based on a measurement of the resultant movement of a loudspeaker driver diaphragm and the associated force, arising from the sound field in the room, acting on it, and in a second acoustic environment the same or different parameters of a second complex transfer function by measuring the loudspeaker driver relating to the room. The ratio between the real parts of the first and second transfer functions is used to define the performance of a correcting filter, included in the signal chain to the loudspeaker driver.
EP19960203005 1995-11-02 1996-10-29 Method and apparatus for controlling the performance of a loudspeaker in a room Expired - Lifetime EP0772374B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK1124/95 1995-11-02
DK112495 1995-11-02

Publications (3)

Publication Number Publication Date
EP0772374A2 EP0772374A2 (en) 1997-05-07
EP0772374A3 true EP0772374A3 (en) 2006-03-29
EP0772374B1 EP0772374B1 (en) 2008-10-08

Family

ID=8101285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960203005 Expired - Lifetime EP0772374B1 (en) 1995-11-02 1996-10-29 Method and apparatus for controlling the performance of a loudspeaker in a room

Country Status (3)

Country Link
EP (1) EP0772374B1 (en)
DE (1) DE69637704D1 (en)
DK (1) DK0772374T3 (en)

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US8086752B2 (en) 2006-11-22 2011-12-27 Sonos, Inc. Systems and methods for synchronizing operations among a plurality of independently clocked digital data processing devices that independently source digital data
US8290603B1 (en) 2004-06-05 2012-10-16 Sonos, Inc. User interfaces for controlling and manipulating groupings in a multi-zone media system
US11106424B2 (en) 2003-07-28 2021-08-31 Sonos, Inc. Synchronizing operations among a plurality of independently clocked digital data processing devices
US11106425B2 (en) 2003-07-28 2021-08-31 Sonos, Inc. Synchronizing operations among a plurality of independently clocked digital data processing devices
US8234395B2 (en) 2003-07-28 2012-07-31 Sonos, Inc. System and method for synchronizing operations among a plurality of independently clocked digital data processing devices
US9977561B2 (en) 2004-04-01 2018-05-22 Sonos, Inc. Systems, methods, apparatus, and articles of manufacture to provide guest access
US9374607B2 (en) 2012-06-26 2016-06-21 Sonos, Inc. Media playback system with guest access
WO2005109954A1 (en) 2004-05-06 2005-11-17 Bang & Olufsen A/S A method and system for adapting a loudspeaker to a listening position in a room
US8868698B2 (en) 2004-06-05 2014-10-21 Sonos, Inc. Establishing a secure wireless network with minimum human intervention
US8326951B1 (en) 2004-06-05 2012-12-04 Sonos, Inc. Establishing a secure wireless network with minimum human intervention
EP1886536A1 (en) * 2005-05-01 2008-02-13 Anocsys AG Method for compensating for changes in reproduced audio signals and a corresponding device
RU2421936C2 (en) 2006-01-03 2011-06-20 СЛ Аудио А/С Method and system to align loudspeaker in room
DE102006026489B4 (en) * 2006-06-07 2010-07-22 Siemens Audiologische Technik Gmbh Method for creating an individual hearing aid program
US8483853B1 (en) 2006-09-12 2013-07-09 Sonos, Inc. Controlling and manipulating groupings in a multi-zone media system
US8788080B1 (en) 2006-09-12 2014-07-22 Sonos, Inc. Multi-channel pairing in a media system
US9202509B2 (en) 2006-09-12 2015-12-01 Sonos, Inc. Controlling and grouping in a multi-zone media system
DE102007032281A1 (en) * 2007-07-11 2009-01-15 Austriamicrosystems Ag Reproduction device and method for controlling a reproduction device
WO2012003894A1 (en) * 2010-07-09 2012-01-12 Bang & Olufsen A/S Adaptive sound field control
US11429343B2 (en) 2011-01-25 2022-08-30 Sonos, Inc. Stereo playback configuration and control
US11265652B2 (en) 2011-01-25 2022-03-01 Sonos, Inc. Playback device pairing
US9084058B2 (en) 2011-12-29 2015-07-14 Sonos, Inc. Sound field calibration using listener localization
US9729115B2 (en) 2012-04-27 2017-08-08 Sonos, Inc. Intelligently increasing the sound level of player
US9106192B2 (en) 2012-06-28 2015-08-11 Sonos, Inc. System and method for device playback calibration
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
US9690271B2 (en) 2012-06-28 2017-06-27 Sonos, Inc. Speaker calibration
US9668049B2 (en) 2012-06-28 2017-05-30 Sonos, Inc. Playback device calibration user interfaces
US8930005B2 (en) 2012-08-07 2015-01-06 Sonos, Inc. Acoustic signatures in a playback system
US9008330B2 (en) 2012-09-28 2015-04-14 Sonos, Inc. Crossover frequency adjustments for audio speakers
US9226073B2 (en) 2014-02-06 2015-12-29 Sonos, Inc. Audio output balancing during synchronized playback
US9226087B2 (en) 2014-02-06 2015-12-29 Sonos, Inc. Audio output balancing during synchronized playback
US9264839B2 (en) 2014-03-17 2016-02-16 Sonos, Inc. Playback device configuration based on proximity detection
US8995240B1 (en) 2014-07-22 2015-03-31 Sonos, Inc. Playback using positioning information
US10127006B2 (en) 2014-09-09 2018-11-13 Sonos, Inc. Facilitating calibration of an audio playback device
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
GB2532794A (en) * 2014-11-28 2016-06-01 Digital Audio S A Versatile electroacoustic diffuser-absorber
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
US10248376B2 (en) 2015-06-11 2019-04-02 Sonos, Inc. Multiple groupings in a playback system
US9538305B2 (en) 2015-07-28 2017-01-03 Sonos, Inc. Calibration error conditions
US9693165B2 (en) 2015-09-17 2017-06-27 Sonos, Inc. Validation of audio calibration using multi-dimensional motion check
JP6437695B2 (en) 2015-09-17 2018-12-12 ソノズ インコーポレイテッド How to facilitate calibration of audio playback devices
US10303422B1 (en) 2016-01-05 2019-05-28 Sonos, Inc. Multiple-device setup
US9743181B2 (en) 2016-01-06 2017-08-22 Apple Inc. Loudspeaker equalizer
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
US9961464B2 (en) 2016-09-23 2018-05-01 Apple Inc. Pressure gradient microphone for measuring an acoustic characteristic of a loudspeaker
US10712997B2 (en) 2016-10-17 2020-07-14 Sonos, Inc. Room association based on name
WO2018164438A1 (en) * 2017-03-10 2018-09-13 Samsung Electronics Co., Ltd. Method and apparatus for in-room low-frequency sound power optimization
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US10299039B2 (en) 2017-06-02 2019-05-21 Apple Inc. Audio adaptation to room
CN110663173B (en) 2017-10-04 2023-09-19 谷歌有限责任公司 Method and system for automatically equalizing audio output based on room characteristics
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
US10425733B1 (en) 2018-09-28 2019-09-24 Apple Inc. Microphone equalization for room acoustics
US10734965B1 (en) 2019-08-12 2020-08-04 Sonos, Inc. Audio calibration of a portable playback device

Citations (3)

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Publication number Priority date Publication date Assignee Title
WO1984000274A1 (en) * 1982-06-30 1984-01-19 B & W Loudspeakers Environment-adaptive loudspeaker systems
DE4334040A1 (en) * 1993-10-06 1995-04-13 Klippel Wolfgang Circuit arrangement for the automatic correction of the transfer characteristics of electrodynamic sound transmitters without additional mechanical or acoustic sensor
JPH07274282A (en) * 1994-03-31 1995-10-20 Suzuki Motor Corp Adjustment method for on-vehicle acoustic equipment and its device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000274A1 (en) * 1982-06-30 1984-01-19 B & W Loudspeakers Environment-adaptive loudspeaker systems
DE4334040A1 (en) * 1993-10-06 1995-04-13 Klippel Wolfgang Circuit arrangement for the automatic correction of the transfer characteristics of electrodynamic sound transmitters without additional mechanical or acoustic sensor
JPH07274282A (en) * 1994-03-31 1995-10-20 Suzuki Motor Corp Adjustment method for on-vehicle acoustic equipment and its device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02 29 February 1996 (1996-02-29) *

Also Published As

Publication number Publication date
DK0772374T3 (en) 2009-02-02
DE69637704D1 (en) 2008-11-20
EP0772374B1 (en) 2008-10-08
EP0772374A2 (en) 1997-05-07

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