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GB716055A - Improvements in and relating to sound reproduction - Google Patents

Improvements in and relating to sound reproduction

Info

Publication number
GB716055A
GB716055A GB369252A GB369252A GB716055A GB 716055 A GB716055 A GB 716055A GB 369252 A GB369252 A GB 369252A GB 369252 A GB369252 A GB 369252A GB 716055 A GB716055 A GB 716055A
Authority
GB
United Kingdom
Prior art keywords
sound reproduction
microphone
relating
tube
loudspeakers
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
GB369252A
Inventor
James Moir
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB369252A priority Critical patent/GB716055A/en
Publication of GB716055A publication Critical patent/GB716055A/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
    • H04R27/00—Public address systems

Landscapes

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

Abstract

716,055. Public address systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan 1, 1953 [Feb. 12, 1952], No. 3692/52. Class 40 (4) In order to introduce a desired time lag into the sound reproduction, a microphone 1 is connected to a loudspeaker 3 coupled by a flexible tube 4, e.g. ¢ inch rubber hose, of length corresponding to the required delay, to a microphone 5 feeding one or more loudspeakers 6. An acoustic matching section 8 minimizes standing waves in the tube 4.
GB369252A 1952-02-12 1952-02-12 Improvements in and relating to sound reproduction Expired GB716055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB369252A GB716055A (en) 1952-02-12 1952-02-12 Improvements in and relating to sound reproduction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB369252A GB716055A (en) 1952-02-12 1952-02-12 Improvements in and relating to sound reproduction

Publications (1)

Publication Number Publication Date
GB716055A true GB716055A (en) 1954-09-29

Family

ID=9763149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB369252A Expired GB716055A (en) 1952-02-12 1952-02-12 Improvements in and relating to sound reproduction

Country Status (1)

Country Link
GB (1) GB716055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761629A (en) * 1970-09-29 1973-09-25 Nippon Musical Instruments Mfg Apparatus for providing delay of an electrical signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761629A (en) * 1970-09-29 1973-09-25 Nippon Musical Instruments Mfg Apparatus for providing delay of an electrical signal

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