GB767550A - Cabinet type housing for loudspeakers - Google Patents

Cabinet type housing for loudspeakers

Info

Publication number
GB767550A
GB767550A GB31799/54A GB3179954A GB767550A GB 767550 A GB767550 A GB 767550A GB 31799/54 A GB31799/54 A GB 31799/54A GB 3179954 A GB3179954 A GB 3179954A GB 767550 A GB767550 A GB 767550A
Authority
GB
United Kingdom
Prior art keywords
loud
speaker
cabinet
nov
chambers
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
Application number
GB31799/54A
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.)
Tesla AS
Original Assignee
Tesla AS
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 Tesla AS filed Critical Tesla AS
Publication of GB767550A publication Critical patent/GB767550A/en
Expired 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers

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)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

767,550. Loud-speakers. TESLA, NARODNI PODNIK. Nov. 3, 1954 [Nov. 14, 1953], No. 31799/54. Class 40 (4). A loud-speaker cabinet with the loud-speaker mounted on the front wall has the rear of the loud-speaker loaded by a number of damped sound passages within the cabinet, the length of the largest passage being equal to one-fourth of the wavelength corresponding to the resonant frequency of the loud-speaker. A cabinet of triangular cross-section has a chamber 2 immediately behind the loud-speaker leading into a number of chambers such as 4, 5 of different lengths l1, l2. These chambers may be damped over their entire lengths and may communicate with one another through acoustic impedances. In Fig. 5 the cabinet is of triangular crosssection and the loud-speaker is mounted in the front panel nearer to one end.
GB31799/54A 1953-11-14 1954-11-03 Cabinet type housing for loudspeakers Expired GB767550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS326618X 1953-11-14

Publications (1)

Publication Number Publication Date
GB767550A true GB767550A (en) 1957-02-06

Family

ID=5452210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31799/54A Expired GB767550A (en) 1953-11-14 1954-11-03 Cabinet type housing for loudspeakers

Country Status (3)

Country Link
CH (1) CH326618A (en)
DE (1) DE1044890B (en)
GB (1) GB767550A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612721A1 (en) * 1987-03-16 1988-09-23 Hautreux Francois Acoustic enclosure tuned to the resonant frequency of the loudspeaker
FR2901089A1 (en) * 2006-05-15 2007-11-16 Inovadis Sarl ACOUSTIC SPEAKER WITH EVENT

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307655C2 (en) * 1993-03-11 1996-11-07 Automation Dr Meggl Gmbh Speaker arrangement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR872894A (en) * 1940-06-07 1942-06-22 Henry Heinrich & Co Electroacoustic apparatus for recording or reproducing sound vibrations
GB626623A (en) * 1945-09-15 1949-07-19 Murphy Radio Ltd Improvements in and relating to loud speakers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612721A1 (en) * 1987-03-16 1988-09-23 Hautreux Francois Acoustic enclosure tuned to the resonant frequency of the loudspeaker
FR2901089A1 (en) * 2006-05-15 2007-11-16 Inovadis Sarl ACOUSTIC SPEAKER WITH EVENT
WO2007132118A1 (en) * 2006-05-15 2007-11-22 Inovadis Speaker system with vent

Also Published As

Publication number Publication date
CH326618A (en) 1957-12-31
DE1044890B (en) 1958-11-27

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