BE509057A - - Google Patents

Info

Publication number
BE509057A
BE509057A BE509057DA BE509057A BE 509057 A BE509057 A BE 509057A BE 509057D A BE509057D A BE 509057DA BE 509057 A BE509057 A BE 509057A
Authority
BE
Belgium
Application number
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.)
Publication of BE509057A publication Critical patent/BE509057A/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/04—Indicating the time of the day
    • G04C21/12—Indicating the time of the day by electro-acoustic means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Stereophonic System (AREA)
BE509057D 1951-02-08 BE509057A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2744583X 1951-02-08

Publications (1)

Publication Number Publication Date
BE509057A true BE509057A (enrdf_load_html_response)

Family

ID=7997531

Family Applications (1)

Application Number Title Priority Date Filing Date
BE509057D BE509057A (enrdf_load_html_response) 1951-02-08

Country Status (2)

Country Link
US (1) US2744583A (enrdf_load_html_response)
BE (1) BE509057A (enrdf_load_html_response)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1508432A (en) * 1921-11-18 1924-09-16 Western Electric Co Sound recording and reproducing apparatus
US1748225A (en) * 1925-11-16 1930-02-25 Edward G Hoch Input and output amplifying unit
US1855149A (en) * 1927-04-13 1932-04-19 Jones W Bartlett Method and means for the ventriloquial production of sound
GB447099A (en) * 1935-08-09 1936-05-12 John Compton Improvements in or relating to electric musical instruments
US2489653A (en) * 1945-07-09 1949-11-29 Donald J Leslie Rotatable tremulant sound producer
GB551364A (en) * 1942-01-14 1943-02-18 Philips Nv Improvements in or relating to devices for the stereophonic transmission and reproduction of sound
US2490466A (en) * 1944-07-19 1949-12-06 Rca Corp Loudspeaker diaphragm support comprising plural compliant members
US2507385A (en) * 1945-03-22 1950-05-09 Rca Corp Magnetic sound recording and reproducing apparatus

Also Published As

Publication number Publication date
US2744583A (en) 1956-05-08

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