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ATE532346T1 - METHOD AND COMMUNICATION DEVICE WITH MEANS FOR SUPPRESSING AUDIO SIGNALS - Google Patents

METHOD AND COMMUNICATION DEVICE WITH MEANS FOR SUPPRESSING AUDIO SIGNALS

Info

Publication number
ATE532346T1
ATE532346T1 AT03021578T AT03021578T ATE532346T1 AT E532346 T1 ATE532346 T1 AT E532346T1 AT 03021578 T AT03021578 T AT 03021578T AT 03021578 T AT03021578 T AT 03021578T AT E532346 T1 ATE532346 T1 AT E532346T1
Authority
AT
Austria
Prior art keywords
audio signals
communications device
communication device
environment
suppressing audio
Prior art date
Application number
AT03021578T
Other languages
German (de)
Inventor
Frank Lorenz
Christoph Poerschmann
Original Assignee
Hewlett Packard Development Co
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 Hewlett Packard Development Co filed Critical Hewlett Packard Development Co
Application granted granted Critical
Publication of ATE532346T1 publication Critical patent/ATE532346T1/en

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
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Transceivers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The operating method has audio signals (8.1-8.3) transmitted by the communications device (13.1,13.2), with reception of the audio signals after reflection, for determining an algorithm (5) corresponding to the pulse response of the environment (9), the superimposed noise components resulting from the environment within audio signals (15.1-15.3) received from an external sound source, e.g. the user of the communications device (15), compensated via a corresponding noise suppression algorithm (16). An independent claim for a communications device with audio signal noise suppression is also included.
AT03021578T 2003-09-24 2003-09-24 METHOD AND COMMUNICATION DEVICE WITH MEANS FOR SUPPRESSING AUDIO SIGNALS ATE532346T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03021578A EP1519618B1 (en) 2003-09-24 2003-09-24 Method and communication equipment with means for audio signals interference suppression

Publications (1)

Publication Number Publication Date
ATE532346T1 true ATE532346T1 (en) 2011-11-15

Family

ID=34178488

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03021578T ATE532346T1 (en) 2003-09-24 2003-09-24 METHOD AND COMMUNICATION DEVICE WITH MEANS FOR SUPPRESSING AUDIO SIGNALS

Country Status (3)

Country Link
EP (1) EP1519618B1 (en)
AT (1) ATE532346T1 (en)
WO (1) WO2005041615A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066842A (en) * 1977-04-27 1978-01-03 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling room reverberation and noise pickup
US5263019A (en) * 1991-01-04 1993-11-16 Picturetel Corporation Method and apparatus for estimating the level of acoustic feedback between a loudspeaker and microphone
JP3344864B2 (en) * 1995-03-13 2002-11-18 日本放送協会 Automatic reverberation time measuring method and automatic reverberation time measuring device

Also Published As

Publication number Publication date
EP1519618A1 (en) 2005-03-30
EP1519618B1 (en) 2011-11-02
WO2005041615A1 (en) 2005-05-06

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