JPS54162536A - Horn speaker - Google Patents

Horn speaker

Info

Publication number
JPS54162536A
JPS54162536A JP7169078A JP7169078A JPS54162536A JP S54162536 A JPS54162536 A JP S54162536A JP 7169078 A JP7169078 A JP 7169078A JP 7169078 A JP7169078 A JP 7169078A JP S54162536 A JPS54162536 A JP S54162536A
Authority
JP
Japan
Prior art keywords
slits
become
equalizer
frequency
constant
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.)
Granted
Application number
JP7169078A
Other languages
Japanese (ja)
Other versions
JPS576874B2 (en
Inventor
Hiroyuki Baba
Juhei Takahashi
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 JP7169078A priority Critical patent/JPS54162536A/en
Publication of JPS54162536A publication Critical patent/JPS54162536A/en
Publication of JPS576874B2 publication Critical patent/JPS576874B2/ja
Granted 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
    • H04R1/34—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
    • H04R1/345—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 for 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To reduce high-frequency distortions and obtain high-frequency reproduction threshold by so leading slits in an equalizer up to throats and couple the respective slits that the effective lengths of the slits become respectively equal. CONSTITUTION:An equalizer 3 is slightly curved with respect to the diameter B-B running the central axis to a dome surface so that the slit spacings on the dome surface do not become constant. In addition, a plurality of slits are provided by equalizer pieces 3a thru 3e in its diametrical direction so that the slit width becomes constant or the outside circumference side becomes slightly wider. Changes in sectional area are provided to these so that the respective slits become approximately equal on each perpendicular palne with respect to sound axis and the slits are directed up to throats and are coupled so that the effective lengths L1 thru L4 of the slits become approximately equal. As a result, the slit spacings do not become constant and the dips owing to their acoustical open circuits become smaller and therefore the high-frequency distortions owing to the vibration modes of diaphragm may be reduced and the high-frequency reproduction threshold may be expanded by the slow attenuation of the high frequency range.
JP7169078A 1978-06-13 1978-06-13 Horn speaker Granted JPS54162536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7169078A JPS54162536A (en) 1978-06-13 1978-06-13 Horn speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7169078A JPS54162536A (en) 1978-06-13 1978-06-13 Horn speaker

Publications (2)

Publication Number Publication Date
JPS54162536A true JPS54162536A (en) 1979-12-24
JPS576874B2 JPS576874B2 (en) 1982-02-06

Family

ID=13467788

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7169078A Granted JPS54162536A (en) 1978-06-13 1978-06-13 Horn speaker

Country Status (1)

Country Link
JP (1) JPS54162536A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130694A (en) * 1982-01-28 1983-08-04 Matsushita Electric Ind Co Ltd Horn speaker
EP1330936A1 (en) * 2000-09-22 2003-07-30 Robert Michael Grunberg Direct coupling of waveguide to compression driver having matching slot shaped throats

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130694A (en) * 1982-01-28 1983-08-04 Matsushita Electric Ind Co Ltd Horn speaker
JPH0123040B2 (en) * 1982-01-28 1989-04-28 Matsushita Electric Ind Co Ltd
EP1330936A1 (en) * 2000-09-22 2003-07-30 Robert Michael Grunberg Direct coupling of waveguide to compression driver having matching slot shaped throats
EP1330936B1 (en) * 2000-09-22 2009-11-11 Robert Michael Grunberg Direct coupling of waveguide to compression driver having matching slot shaped throats

Also Published As

Publication number Publication date
JPS576874B2 (en) 1982-02-06

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