WO2009034536A3 - Audio activity detection - Google Patents

Audio activity detection Download PDF

Info

Publication number
WO2009034536A3
WO2009034536A3 PCT/IB2008/053666 IB2008053666W WO2009034536A3 WO 2009034536 A3 WO2009034536 A3 WO 2009034536A3 IB 2008053666 W IB2008053666 W IB 2008053666W WO 2009034536 A3 WO2009034536 A3 WO 2009034536A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
detection
adaptive filter
audio activity
audio
Prior art date
Application number
PCT/IB2008/053666
Other languages
French (fr)
Other versions
WO2009034536A2 (en
WO2009034536A9 (en
Inventor
Sriram Srinivasan
David A C M Roovers
Cornelis P Janse
Valery S Kot
Original Assignee
Koninkl Philips Electronics Nv
Sriram Srinivasan
David A C M Roovers
Cornelis P Janse
Valery S Kot
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 Koninkl Philips Electronics Nv, Sriram Srinivasan, David A C M Roovers, Cornelis P Janse, Valery S Kot filed Critical Koninkl Philips Electronics Nv
Publication of WO2009034536A2 publication Critical patent/WO2009034536A2/en
Publication of WO2009034536A3 publication Critical patent/WO2009034536A3/en
Publication of WO2009034536A9 publication Critical patent/WO2009034536A9/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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

An audio activity detection apparatus comprises a first sound sensor (101) having a substantiallyomni-directionalsensitivity and providing a first signal and a second sound sensor (101, 103, 105) having a directional sensitivity and providing a second signal. A first adaptive filter (107) filters the second signal to generate a first filtered signal and a first adaptation unit (111) adapts the first adaptive filter (107) to reduce a difference between the first filtered signal and the first signal. A detection unit (113) detects audio activity in response to at least one filter coefficient of the first adaptive filter (107). The invention may allow improved audio detection in many scenarios and may in particular provide improved audio detection for hearing aids using a plurality of microphones. Decorrelated detections of dominant interferers and desired signals may be achieved.
PCT/IB2008/053666 2007-09-14 2008-09-11 Audio activity detection WO2009034536A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07116406 2007-09-14
EP07116406.5 2007-09-14

Publications (3)

Publication Number Publication Date
WO2009034536A2 WO2009034536A2 (en) 2009-03-19
WO2009034536A3 true WO2009034536A3 (en) 2009-08-20
WO2009034536A9 WO2009034536A9 (en) 2009-11-05

Family

ID=40452645

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/053666 WO2009034536A2 (en) 2007-09-14 2008-09-11 Audio activity detection

Country Status (1)

Country Link
WO (1) WO2009034536A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050058313A1 (en) 2003-09-11 2005-03-17 Victorian Thomas A. External ear canal voice detection
US9219964B2 (en) 2009-04-01 2015-12-22 Starkey Laboratories, Inc. Hearing assistance system with own voice detection
US8477973B2 (en) 2009-04-01 2013-07-02 Starkey Laboratories, Inc. Hearing assistance system with own voice detection
US9552845B2 (en) 2009-10-09 2017-01-24 Dolby Laboratories Licensing Corporation Automatic generation of metadata for audio dominance effects
WO2012098427A1 (en) * 2011-01-18 2012-07-26 Nokia Corporation An audio scene selection apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018854A1 (en) * 1999-01-05 2000-07-12 Oticon A/S A method and a device for providing improved speech intelligibility
WO2005029914A1 (en) * 2003-09-19 2005-03-31 Widex A/S A method for controlling the directionality of the sound receiving characteristic of a hearing aid and a signal processing apparatus for a hearing aid with a controllable directional characteristic
EP1744589A2 (en) * 2005-07-11 2007-01-17 Siemens Audiologische Technik GmbH Hearing device and corresponding method for ownvoices detection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018854A1 (en) * 1999-01-05 2000-07-12 Oticon A/S A method and a device for providing improved speech intelligibility
WO2005029914A1 (en) * 2003-09-19 2005-03-31 Widex A/S A method for controlling the directionality of the sound receiving characteristic of a hearing aid and a signal processing apparatus for a hearing aid with a controllable directional characteristic
EP1744589A2 (en) * 2005-07-11 2007-01-17 Siemens Audiologische Technik GmbH Hearing device and corresponding method for ownvoices detection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SRIRAM SRINIVASAN ET AL: "Spatial audio activity detection for hearing aids", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2008. ICASSP 2008. IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 31 March 2008 (2008-03-31), pages 4021 - 4024, XP031251478, ISBN: 978-1-4244-1483-3 *

Also Published As

Publication number Publication date
WO2009034536A2 (en) 2009-03-19
WO2009034536A9 (en) 2009-11-05

Similar Documents

Publication Publication Date Title
DK1785007T3 (en) Low-frequency phase matching for microphones
WO2004103013A3 (en) A method and system for self-compensating for microphone non-uniformities
WO2010004056A3 (en) Method and system for speech enhancement in a room
WO2007106399A3 (en) Noise-reducing directional microphone array
EP3593349B1 (en) System and method for relative enhancement of vocal utterances in an acoustically cluttered environment
EP3550858A1 (en) A head-wearable hearing device
US8811637B2 (en) Method and apparatus for detecting user activities from within a hearing assistance device using a vibration sensor
WO2016148955A3 (en) Voice sensing using multiple microphones
TW200615902A (en) Adaptive beamformer, sidelobe canceller, handsfree speech communication device
WO2010002676A3 (en) Multi-microphone voice activity detector
DE602005021546D1 (en) Hung
WO2007082579A3 (en) Active hearing protection system
EP2426949A3 (en) Method and apparatus for reproducing front surround sound
EP2369853A3 (en) Apparatus and method for reducing noise input from a rear direction
WO2009059038A3 (en) Observer-based cancellation system for implantable hearing instruments
EP2105917A3 (en) Headphone device, signal processing device, and signal processing method
WO2009148960A3 (en) Systems, methods, apparatus, and computer program products for spectral contrast enhancement
EP2207168A3 (en) Robust two microphone noise suppression system
EP2187604A3 (en) portable terminal, audio output control method, and audio output control program
WO2009044562A1 (en) Noise extraction device using microphone
DE602006005228D1 (en) System and method for multi-channel echo cancellation
EP2363784A3 (en) Personal listening device having input applied to the housing to provide a desired function and method
AU5806300A (en) Feedback cancellation using bandwidth detection
WO2008019231A3 (en) Acoustic transducer array signal processing
WO2007031340A3 (en) In-ear headset and in-ear earphone

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08807601

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08807601

Country of ref document: EP

Kind code of ref document: A2