IN2015MN00088A - - Google Patents

Info

Publication number
IN2015MN00088A
IN2015MN00088A IN88MUN2015A IN2015MN00088A IN 2015MN00088 A IN2015MN00088 A IN 2015MN00088A IN 88MUN2015 A IN88MUN2015 A IN 88MUN2015A IN 2015MN00088 A IN2015MN00088 A IN 2015MN00088A
Authority
IN
India
Prior art keywords
reference signal
audio signals
runtime
echo
audio signal
Prior art date
Application number
Other languages
English (en)
Inventor
Asif I Mohammad
Lae Hoon Kim
Erik Visser
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2015MN00088A publication Critical patent/IN2015MN00088A/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/005Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208Noise filtering
    • G10L2021/02082Noise filtering the noise being echo, reverberation of the speech
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
    • H04R2430/23Direction finding using a sum-delay beam-former

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
IN88MUN2015 2012-07-02 2013-07-02 IN2015MN00088A (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201261667249P 2012-07-02 2012-07-02
US201261681474P 2012-08-09 2012-08-09
US201261739662P 2012-12-19 2012-12-19
US13/933,005 US9497544B2 (en) 2012-07-02 2013-07-01 Systems and methods for surround sound echo reduction
PCT/US2013/049055 WO2014008253A1 (en) 2012-07-02 2013-07-02 Systems and methods for surround sound echo reduction

Publications (1)

Publication Number Publication Date
IN2015MN00088A true IN2015MN00088A (es) 2015-10-16

Family

ID=49778196

Family Applications (1)

Application Number Title Priority Date Filing Date
IN88MUN2015 IN2015MN00088A (es) 2012-07-02 2013-07-02

Country Status (5)

Country Link
US (1) US9497544B2 (es)
EP (1) EP2868117B1 (es)
CN (1) CN104429100B (es)
IN (1) IN2015MN00088A (es)
WO (1) WO2014008253A1 (es)

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Also Published As

Publication number Publication date
EP2868117A1 (en) 2015-05-06
CN104429100A (zh) 2015-03-18
CN104429100B (zh) 2019-02-26
US20140003611A1 (en) 2014-01-02
WO2014008253A1 (en) 2014-01-09
US9497544B2 (en) 2016-11-15
EP2868117B1 (en) 2017-11-15

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