FR704963A - Improvements in electrical sound amplification - Google Patents

Improvements in electrical sound amplification

Info

Publication number
FR704963A
FR704963A FR704963DA FR704963A FR 704963 A FR704963 A FR 704963A FR 704963D A FR704963D A FR 704963DA FR 704963 A FR704963 A FR 704963A
Authority
FR
France
Prior art keywords
sound amplification
electrical sound
electrical
amplification
sound
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
Other languages
French (fr)
Inventor
Jean Kressmann
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 filed Critical
Application granted granted Critical
Publication of FR704963A publication Critical patent/FR704963A/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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm 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 

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR704963D 1930-01-24 1930-01-24 Improvements in electrical sound amplification Expired FR704963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR704963T 1930-01-24

Publications (1)

Publication Number Publication Date
FR704963A true FR704963A (en) 1931-05-29

Family

ID=9066921

Family Applications (1)

Application Number Title Priority Date Filing Date
FR704963D Expired FR704963A (en) 1930-01-24 1930-01-24 Improvements in electrical sound amplification

Country Status (2)

Country Link
US (1) US1923870A (en)
FR (1) FR704963A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB826980A (en) * 1956-08-20 1960-01-27 Vivian Cleland Gray Improvements in and relating to electrical sound reproducing devices
US2965190A (en) * 1958-07-02 1960-12-20 C W Lemmerman Inc Jet engine muffler
US3080785A (en) * 1958-08-25 1963-03-12 Atuk Corp Electroacoustic tone modifying systems for stringed musical instruments
US3101810A (en) * 1959-07-08 1963-08-27 Allied Instructional Developme Loudspeaker resonator
US3239028A (en) * 1963-11-01 1966-03-08 Willard A Murray Sound reproduction system
US3233695A (en) * 1964-07-10 1966-02-08 Budsen Corp Speaker enclosure
US3256953A (en) * 1965-02-15 1966-06-21 John J Rimi Musical flower pot
US3291251A (en) * 1966-03-14 1966-12-13 Stanley A Strzelecki Sr Divided panel board for hi-fi speaker systems
US3432001A (en) * 1966-08-31 1969-03-11 Samuel C Anastin Sound improving devices
US20070180975A1 (en) * 2006-02-06 2007-08-09 Paris Rainer K Guitar with acoustical mixing chamber

Also Published As

Publication number Publication date
US1923870A (en) 1933-08-22

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