JPS53109619A - Directivity variable type speaker device - Google Patents

Directivity variable type speaker device

Info

Publication number
JPS53109619A
JPS53109619A JP2467977A JP2467977A JPS53109619A JP S53109619 A JPS53109619 A JP S53109619A JP 2467977 A JP2467977 A JP 2467977A JP 2467977 A JP2467977 A JP 2467977A JP S53109619 A JPS53109619 A JP S53109619A
Authority
JP
Japan
Prior art keywords
speaker device
variable type
type speaker
directivity variable
directivity
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.)
Pending
Application number
JP2467977A
Other languages
Japanese (ja)
Inventor
Masahiro Hamada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2467977A priority Critical patent/JPS53109619A/en
Publication of JPS53109619A publication Critical patent/JPS53109619A/en
Pending legal-status Critical Current

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
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:To make possible easy and simple changing of the directivity of voice by performing electrical changing-over operations so as to selectively perform inphase or antiphase driving of arbitrary speaker units out of a plurality of speaker units.
JP2467977A 1977-03-07 1977-03-07 Directivity variable type speaker device Pending JPS53109619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2467977A JPS53109619A (en) 1977-03-07 1977-03-07 Directivity variable type speaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2467977A JPS53109619A (en) 1977-03-07 1977-03-07 Directivity variable type speaker device

Publications (1)

Publication Number Publication Date
JPS53109619A true JPS53109619A (en) 1978-09-25

Family

ID=12144827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2467977A Pending JPS53109619A (en) 1977-03-07 1977-03-07 Directivity variable type speaker device

Country Status (1)

Country Link
JP (1) JPS53109619A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009021657A (en) * 2007-07-10 2009-01-29 Yamaha Corp Sound radiation and pickup device and sound radiation and pickup system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009021657A (en) * 2007-07-10 2009-01-29 Yamaha Corp Sound radiation and pickup device and sound radiation and pickup system

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