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FR3134271B1 - Beamforming Soundbar - Google Patents

Beamforming Soundbar Download PDF

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Publication number
FR3134271B1
FR3134271B1 FR2202822A FR2202822A FR3134271B1 FR 3134271 B1 FR3134271 B1 FR 3134271B1 FR 2202822 A FR2202822 A FR 2202822A FR 2202822 A FR2202822 A FR 2202822A FR 3134271 B1 FR3134271 B1 FR 3134271B1
Authority
FR
France
Prior art keywords
loudspeakers
beamforming
soundbar
signals
sound beam
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.)
Active
Application number
FR2202822A
Other languages
French (fr)
Other versions
FR3134271A1 (en
Inventor
Gregory Pujals
Jean-Loup Afresne
Antoine Scotton
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.)
Devialet SA
Original Assignee
Devialet SA
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 Devialet SA filed Critical Devialet SA
Priority to FR2202822A priority Critical patent/FR3134271B1/en
Publication of FR3134271A1 publication Critical patent/FR3134271A1/en
Application granted granted Critical
Publication of FR3134271B1 publication Critical patent/FR3134271B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • 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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays 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
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays 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
    • H04R2203/00—Details of circuits for transducers, loudspeakers or microphones covered by H04R3/00 but not provided for in any of its subgroups
    • H04R2203/12—Beamforming aspects for stereophonic sound reproduction with loudspeaker arrays

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Barre de son à formation de faisceaux La barre de son (10) comporte : un boîtier allongé (12) présentant à chaque extrémité (20L, 20R) au moins trois haut-parleurs (24L, 26L, 30L, 24R, 26R, 30R) disposés de sorte que leurs axes d’émission s’étendent suivant trois directions, au moins trois entrées pour trois canaux d’entrée pour les trois haut-parleurs (24L, 26L, 30L, 24R, 26R, 30R) de chaque extrémité (20L, 20R), et une unité de traitement du signal, pour la formation d’au moins un faisceau sonore directif à chaque extrémité (20L, 20R) adaptée pour créer, pour les haut-parleurs (24L, 26L, 30L, 24R, 26R, 30R) de chaque extrémité (20L, 20R), au moins trois signaux d’excitation des trois haut-parleurs à partir des au moins trois signaux d’entrée pour former au moins un faisceau sonore directif à chaque extrémité (20L, 20R). Figure pour l'abrégé : 1Beamforming sound bar The sound bar (10) comprises: an elongated housing (12) having at each end (20L, 20R) at least three loudspeakers (24L, 26L, 30L, 24R, 26R, 30R) arranged so that their emission axes extend in three directions, at least three inputs for three input channels for the three loudspeakers (24L, 26L, 30L, 24R, 26R, 30R) of each end (20L, 20R), and a signal processing unit, for forming at least one directional sound beam at each end (20L, 20R) adapted to create, for the loudspeakers (24L, 26L, 30L, 24R, 26R, 30R) of each end (20L, 20R), at least three signals excitation of the three loudspeakers from the at least three input signals to form at least one directional sound beam at each end (20L, 20R). Figure for abstract: 1

FR2202822A 2022-03-29 2022-03-29 Beamforming Soundbar Active FR3134271B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2202822A FR3134271B1 (en) 2022-03-29 2022-03-29 Beamforming Soundbar

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2202822A FR3134271B1 (en) 2022-03-29 2022-03-29 Beamforming Soundbar
FR2202822 2022-03-29

Publications (2)

Publication Number Publication Date
FR3134271A1 FR3134271A1 (en) 2023-10-06
FR3134271B1 true FR3134271B1 (en) 2024-10-11

Family

ID=82594622

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2202822A Active FR3134271B1 (en) 2022-03-29 2022-03-29 Beamforming Soundbar

Country Status (1)

Country Link
FR (1) FR3134271B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5870484A (en) * 1995-09-05 1999-02-09 Greenberger; Hal Loudspeaker array with signal dependent radiation pattern
US9264813B2 (en) * 2010-03-04 2016-02-16 Logitech, Europe S.A. Virtual surround for loudspeakers with increased constant directivity
US8934655B2 (en) 2011-04-14 2015-01-13 Bose Corporation Orientation-responsive use of acoustic reflection
WO2017030914A1 (en) * 2015-08-14 2017-02-23 Dolby Laboratories Licensing Corporation Upward firing loudspeaker having asymmetric dispersion for reflected sound rendering
WO2020181288A1 (en) * 2019-03-07 2020-09-10 Polk Audio, Llc Active cancellation of a height-channel soundbar array's forward sound radiation

Also Published As

Publication number Publication date
FR3134271A1 (en) 2023-10-06

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