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FR2405608A1 - Speaker enclosure with front and internal loudspeakers - has internal speaker supplied with greater power via low-pass filter - Google Patents

Speaker enclosure with front and internal loudspeakers - has internal speaker supplied with greater power via low-pass filter

Info

Publication number
FR2405608A1
FR2405608A1 FR7729811A FR7729811A FR2405608A1 FR 2405608 A1 FR2405608 A1 FR 2405608A1 FR 7729811 A FR7729811 A FR 7729811A FR 7729811 A FR7729811 A FR 7729811A FR 2405608 A1 FR2405608 A1 FR 2405608A1
Authority
FR
France
Prior art keywords
internal
speaker
loudspeakers
pass filter
greater power
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
FR7729811A
Other languages
French (fr)
Other versions
FR2405608B3 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7729811A priority Critical patent/FR2405608A1/en
Publication of FR2405608A1 publication Critical patent/FR2405608A1/en
Application granted granted Critical
Publication of FR2405608B3 publication Critical patent/FR2405608B3/fr
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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  using transducers reproducing the same frequency band
    • 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
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers

Landscapes

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

Abstract

The speaker enclosure includes one front loudspeaker and one internal loudspeaker mounted in a wall which divides two parts of the box. Each of the two parts of the box is sealed. The two loudspeakers are powered in parallel from the signal source to reproduce the sound at the front speaker. The internal receives a greater power than the front speaker. A low pass filter is connected to the supply of the internal speaker. The cut-off frequency of this speaker corresponds to a wavelength equal to half of the distance between the two loudspeakers.
FR7729811A 1977-10-04 1977-10-04 Speaker enclosure with front and internal loudspeakers - has internal speaker supplied with greater power via low-pass filter Granted FR2405608A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7729811A FR2405608A1 (en) 1977-10-04 1977-10-04 Speaker enclosure with front and internal loudspeakers - has internal speaker supplied with greater power via low-pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7729811A FR2405608A1 (en) 1977-10-04 1977-10-04 Speaker enclosure with front and internal loudspeakers - has internal speaker supplied with greater power via low-pass filter

Publications (2)

Publication Number Publication Date
FR2405608A1 true FR2405608A1 (en) 1979-05-04
FR2405608B3 FR2405608B3 (en) 1980-07-18

Family

ID=9196079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729811A Granted FR2405608A1 (en) 1977-10-04 1977-10-04 Speaker enclosure with front and internal loudspeakers - has internal speaker supplied with greater power via low-pass filter

Country Status (1)

Country Link
FR (1) FR2405608A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036831A1 (en) * 1980-03-20 1981-09-30 Jean-Daniel Comparon Loudspeaker enclosure
EP0188295A2 (en) * 1985-01-03 1986-07-23 Johan Peter Lyngdorf A loudspeaker unit
EP0410352A2 (en) * 1989-07-24 1991-01-30 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
WO1991015933A1 (en) * 1990-04-09 1991-10-17 Max Hobelsberger Device for improving bass reproduction in loudspeaker systems with closed housings
FR2687885A1 (en) * 1991-10-05 1993-08-27 Hobelsberger Maximilian APPARATUS FOR IMPROVING THE REPRODUCTION OF LOW FREQUENCIES BY ENCLOSED SPACE ACOUSTIC SPEAKERS.
WO2006020429A1 (en) * 2004-08-09 2006-02-23 Graber Curtis E Increased lf spectrum power density loudspeaker system
US20220099828A1 (en) * 2020-09-25 2022-03-31 Samsung Electronics Co., Ltd. System and method for measuring distance using acoustic signal

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036831A1 (en) * 1980-03-20 1981-09-30 Jean-Daniel Comparon Loudspeaker enclosure
EP0188295A2 (en) * 1985-01-03 1986-07-23 Johan Peter Lyngdorf A loudspeaker unit
EP0188295A3 (en) * 1985-01-03 1988-08-24 Johan Peter Lyngdorf A loudspeaker unit
EP0410352A2 (en) * 1989-07-24 1991-01-30 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
EP0410352A3 (en) * 1989-07-24 1992-02-12 Matsushita Electric Industrial Co., Ltd. Loudspeaker system
WO1991015933A1 (en) * 1990-04-09 1991-10-17 Max Hobelsberger Device for improving bass reproduction in loudspeaker systems with closed housings
US5461676A (en) * 1990-04-09 1995-10-24 Hobelsberger; Maximilian H. Device for improving bass reproduction in loudspeaker system with closed housings
FR2687885A1 (en) * 1991-10-05 1993-08-27 Hobelsberger Maximilian APPARATUS FOR IMPROVING THE REPRODUCTION OF LOW FREQUENCIES BY ENCLOSED SPACE ACOUSTIC SPEAKERS.
WO2006020429A1 (en) * 2004-08-09 2006-02-23 Graber Curtis E Increased lf spectrum power density loudspeaker system
US7277552B2 (en) 2004-08-09 2007-10-02 Graber Curtis E Increased LF spectrum power density loudspeaker system
US20220099828A1 (en) * 2020-09-25 2022-03-31 Samsung Electronics Co., Ltd. System and method for measuring distance using acoustic signal
US12181574B2 (en) * 2020-09-25 2024-12-31 Samsung Electronics Co., Ltd. System and method for measuring distance using acoustic signal

Also Published As

Publication number Publication date
FR2405608B3 (en) 1980-07-18

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