EP2138997A3 - Method and system for reducing acoustic distortion - Google Patents

Method and system for reducing acoustic distortion Download PDF

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Publication number
EP2138997A3
EP2138997A3 EP09163696.9A EP09163696A EP2138997A3 EP 2138997 A3 EP2138997 A3 EP 2138997A3 EP 09163696 A EP09163696 A EP 09163696A EP 2138997 A3 EP2138997 A3 EP 2138997A3
Authority
EP
European Patent Office
Prior art keywords
control unit
target area
acoustic
reducing acoustic
acoustic distortion
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Withdrawn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
EP09163696.9A
Other languages
German (de)
French (fr)
Other versions
EP2138997A2 (en
Inventor
Sandra Beecken
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2138997A2 publication Critical patent/EP2138997A2/en
Publication of EP2138997A3 publication Critical patent/EP2138997A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/1752—Masking
    • G10K11/1754—Speech masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/41—Jamming having variable characteristics characterized by the control of the jamming activation or deactivation time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/12—Jamming or countermeasure used for a particular application for acoustic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Noise Elimination (AREA)

Abstract

Bei einem System (1) zur Reduzierung akustischer Störungen mit Mitteln zum akustischen Erfassen eines in einem Zielbereich vorliegenden Schallsignals (S), Mitteln zur Abgabe eines akustischen Maskierungssignals (G) in den Zielbereich sowie eine Steuereinheit (4) zur Ansteuerung der Mittel zur Abgabe des akustischen Maskierungssignals (G), derart, dass innerhalb des Zielbereichs eine akustische Störung reduziert bzw. maskiert wird, ist die Steuereinheit (4) dazu ausgebildet, das erfasste Schallsignal (S) auf das Vorhandensein von Sprachsignalen hin zu analysieren, wobei das Maskierungssignal (G) lediglich dann abgegeben wird, wenn durch die Steuereinheit (4) das Vorliegen von Sprachsignalen erkannt wurde.

Figure imgaf001
In a system (1) for reducing acoustic interference with means for acoustically detecting a sound signal (S) present in a target area, means for emitting an acoustic masking signal (G) in the target area and a control unit (4) for controlling the means for delivering the acoustic masking signal (G) such that within the target area an acoustic interference is masked, the control unit (4) is adapted to analyze the detected sound signal (S) for the presence of speech signals, the masking signal (G ) is emitted only when the presence of voice signals has been detected by the control unit (4).
Figure imgaf001
EP09163696.9A 2008-06-26 2009-06-25 Method and system for reducing acoustic distortion Withdrawn EP2138997A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008030354 2008-06-26
DE102008035181A DE102008035181A1 (en) 2008-06-26 2008-07-29 Method and system for reducing acoustic interference

Publications (2)

Publication Number Publication Date
EP2138997A2 EP2138997A2 (en) 2009-12-30
EP2138997A3 true EP2138997A3 (en) 2017-07-26

Family

ID=41165188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09163696.9A Withdrawn EP2138997A3 (en) 2008-06-26 2009-06-25 Method and system for reducing acoustic distortion

Country Status (2)

Country Link
EP (1) EP2138997A3 (en)
DE (1) DE102008035181A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011051727A1 (en) * 2011-07-11 2013-01-17 Pinta Acoustic Gmbh Method and device for active sound masking

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879578A (en) * 1973-06-18 1975-04-22 Theodore Wildi Sound masking method and system
GB2138994A (en) * 1983-10-14 1984-10-31 Miller Herman Inc Sound generating apparatus
EP1291845A2 (en) * 2001-09-10 2003-03-12 Armstrong World Industries, Inc. Sound masking system
WO2004010627A1 (en) * 2002-07-24 2004-01-29 Applied Minds, Inc. Method and system for masking speech
US20060109983A1 (en) * 2004-11-19 2006-05-25 Young Randall K Signal masking and method thereof
WO2006076217A2 (en) * 2005-01-10 2006-07-20 Herman Miller, Inc. Method and apparatus of overlapping and summing speech for an output that disrupts speech

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004031657B4 (en) * 2004-06-30 2017-08-24 Volkswagen Ag A method for suppressing noise in a vehicle interior
DE102006049543A1 (en) * 2006-06-13 2007-12-20 Volkswagen Ag Speaker arrangement for directional sonication of a motor vehicle seat
US8107639B2 (en) * 2006-06-29 2012-01-31 777388 Ontario Limited System and method for a sound masking system for networked workstations or offices

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879578A (en) * 1973-06-18 1975-04-22 Theodore Wildi Sound masking method and system
GB2138994A (en) * 1983-10-14 1984-10-31 Miller Herman Inc Sound generating apparatus
EP1291845A2 (en) * 2001-09-10 2003-03-12 Armstrong World Industries, Inc. Sound masking system
WO2004010627A1 (en) * 2002-07-24 2004-01-29 Applied Minds, Inc. Method and system for masking speech
US20060109983A1 (en) * 2004-11-19 2006-05-25 Young Randall K Signal masking and method thereof
WO2006076217A2 (en) * 2005-01-10 2006-07-20 Herman Miller, Inc. Method and apparatus of overlapping and summing speech for an output that disrupts speech

Also Published As

Publication number Publication date
DE102008035181A1 (en) 2009-12-31
EP2138997A2 (en) 2009-12-30

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