CA2594362C - Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage - Google Patents

Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage Download PDF

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Publication number
CA2594362C
CA2594362C CA002594362A CA2594362A CA2594362C CA 2594362 C CA2594362 C CA 2594362C CA 002594362 A CA002594362 A CA 002594362A CA 2594362 A CA2594362 A CA 2594362A CA 2594362 C CA2594362 C CA 2594362C
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CA
Canada
Prior art keywords
filterbank
oversampled
signal
filter
processing
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.)
Expired - Lifetime
Application number
CA002594362A
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English (en)
Other versions
CA2594362A1 (fr
Inventor
Robert L. Brennan
Edward Y. Chau
Hamid Sheikhzadeh Nadjar
Todd Schneider
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.)
On Semiconductor Trading Ltd
Original Assignee
Emma Mixed Signal CV
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
Priority claimed from CA002354858A external-priority patent/CA2354858A1/fr
Application filed by Emma Mixed Signal CV filed Critical Emma Mixed Signal CV
Priority to CA002594362A priority Critical patent/CA2594362C/fr
Publication of CA2594362A1 publication Critical patent/CA2594362A1/fr
Application granted granted Critical
Publication of CA2594362C publication Critical patent/CA2594362C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • 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
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers
    • 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
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • 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
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H04R25/507—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing implemented by neural network or fuzzy logic

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Complex Calculations (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Radiation (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Système de traitement de signaux directionnels pour la formation de faisceaux des signaux d'information. Le système comprend un banc de filtres à suréchantillonnage, qui comporte un banc de filtres d'analyse pour la transformation de signaux d'information à domaine temporel en signaux de canal à domaine transformé, un banc de filtres de synthèse et un processeur de signaux. Le processeur de signaux traite les sorties du banc de filtres d'analyse pour la mise en forme de faisceaux des signaux d'informations. Le banc de filtres de synthèse transforme les sorties du processeur de signaux en un seul signal d'information à domaine temporel.
CA002594362A 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage Expired - Lifetime CA2594362C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002594362A CA2594362C (fr) 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA002354858A CA2354858A1 (fr) 2001-08-08 2001-08-08 Traitement directionnel de signaux audio en sous-bande faisant appel a un banc de filtres surechantillonne
CA2,354,858 2001-08-08
CA002594362A CA2594362C (fr) 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage
CA002397009A CA2397009C (fr) 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002397009A Division CA2397009C (fr) 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage

Publications (2)

Publication Number Publication Date
CA2594362A1 CA2594362A1 (fr) 2003-02-08
CA2594362C true CA2594362C (fr) 2009-12-15

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
CA002594362A Expired - Lifetime CA2594362C (fr) 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage
CA002397009A Expired - Lifetime CA2397009C (fr) 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002397009A Expired - Lifetime CA2397009C (fr) 2001-08-08 2002-08-07 Traitement directionnel de signaux audio au moyen d'un banc de filtres a surechantillonnage

Country Status (1)

Country Link
CA (2) CA2594362C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170287489A1 (en) * 2016-04-01 2017-10-05 Intel Corporation Synthetic oversampling to enhance speaker identification or verification

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2452945C (fr) * 2003-09-23 2016-05-10 Mcmaster University Dispositif auditif binaural adaptatif
EP3598777B1 (fr) * 2018-07-18 2023-10-11 Oticon A/s Dispositif auditif comprenant un estimateur de probabilité de présence de parole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170287489A1 (en) * 2016-04-01 2017-10-05 Intel Corporation Synthetic oversampling to enhance speaker identification or verification
US9947323B2 (en) * 2016-04-01 2018-04-17 Intel Corporation Synthetic oversampling to enhance speaker identification or verification

Also Published As

Publication number Publication date
CA2397009C (fr) 2007-10-23
CA2397009A1 (fr) 2003-02-08
CA2594362A1 (fr) 2003-02-08

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Effective date: 20220808