AU2000239178A1 - Spatial sound steering system - Google Patents

Spatial sound steering system

Info

Publication number
AU2000239178A1
AU2000239178A1 AU2000239178A AU3917800A AU2000239178A1 AU 2000239178 A1 AU2000239178 A1 AU 2000239178A1 AU 2000239178 A AU2000239178 A AU 2000239178A AU 3917800 A AU3917800 A AU 3917800A AU 2000239178 A1 AU2000239178 A1 AU 2000239178A1
Authority
AU
Australia
Prior art keywords
reflectors
microphone
acoustic signals
acoustic
steering system
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.)
Abandoned
Application number
AU2000239178A
Inventor
Albert Shen
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.)
Intel Corp
Original Assignee
Intel Corp
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 Intel Corp filed Critical Intel Corp
Publication of AU2000239178A1 publication Critical patent/AU2000239178A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/802—Systems for determining direction or deviation from predetermined direction
    • 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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Steering Controls (AREA)
  • Stereophonic Arrangements (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

An apparatus and method for determining directionality of acoustic signals arriving from an acoustic source is disclosed. A plurality of reflectors for modifying the acoustic signals and a transducer located proximate to the reflectors is used. A notch detector detects and identifies spectral notches in the modified acoustic signals. A device then determines the direction of the acoustic source. In one embodiment, a microphone system capable of detecting three-dimensional sound is provided. The microphone system comprises an elliptical-shaped microphone enhancer having at least two reflectors located different distances apart from a microphone located in the center of the ellipse. The reflectors have asymmetric ridges which cause interference patterns in the signals received by the microphone, conceptually analogous to the patterns generated by the pinnae of the human ear.
AU2000239178A 2000-03-24 2000-03-24 Spatial sound steering system Abandoned AU2000239178A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/007843 WO2001074117A1 (en) 2000-03-24 2000-03-24 Spatial sound steering system

Publications (1)

Publication Number Publication Date
AU2000239178A1 true AU2000239178A1 (en) 2001-10-08

Family

ID=21741191

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2000239178A Abandoned AU2000239178A1 (en) 2000-03-24 2000-03-24 Spatial sound steering system

Country Status (6)

Country Link
EP (1) EP1266538B1 (en)
JP (1) JP4198915B2 (en)
AT (1) ATE492125T1 (en)
AU (1) AU2000239178A1 (en)
DE (1) DE60045392D1 (en)
WO (1) WO2001074117A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006162461A (en) * 2004-12-08 2006-06-22 Institute Of Physical & Chemical Research Apparatus and method for detecting location of sound source
JP2009200569A (en) * 2008-02-19 2009-09-03 Chiba Inst Of Technology Method and device for estimating sound source direction
US8830791B2 (en) * 2011-04-27 2014-09-09 Empire Technology Development Llc Measurement of 3D coordinates of transmitter
CN106297820A (en) 2015-05-14 2017-01-04 杜比实验室特许公司 There is the audio-source separation that direction, source based on iteration weighting determines
DE102017221021A1 (en) * 2017-11-24 2019-05-29 Zf Friedrichshafen Ag Echo location with directional resonator
CN111273230B (en) * 2020-03-02 2022-06-07 开放智能机器（上海）有限公司 Sound source positioning method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843034A1 (en) * 1988-12-21 1990-06-28 Messerschmitt Boelkow Blohm MICROPHONE SYSTEM FOR DETERMINING THE DIRECTION AND POSITION OF A SOUND SOURCE
US4965775A (en) * 1989-05-19 1990-10-23 At&T Bell Laboratories Image derived directional microphones
US5748757A (en) * 1995-12-27 1998-05-05 Lucent Technologies Inc. Collapsible image derived differential microphone
US5742693A (en) * 1995-12-29 1998-04-21 Lucent Technologies Inc. Image-derived second-order directional microphones with finite baffle
US6185152B1 (en) * 1998-12-23 2001-02-06 Intel Corporation Spatial sound steering system

Also Published As

Publication number Publication date
EP1266538A1 (en) 2002-12-18
DE60045392D1 (en) 2011-01-27
JP2003529060A (en) 2003-09-30
EP1266538B1 (en) 2010-12-15
WO2001074117A1 (en) 2001-10-04
ATE492125T1 (en) 2011-01-15
JP4198915B2 (en) 2008-12-17

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