GB1306194A - - Google Patents

Info

Publication number
GB1306194A
GB1306194A GB1522071*[A GB1522071A GB1306194A GB 1306194 A GB1306194 A GB 1306194A GB 1522071 A GB1522071 A GB 1522071A GB 1306194 A GB1306194 A GB 1306194A
Authority
GB
United Kingdom
Prior art keywords
coils
spring
unit
damping
reverberation
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
GB1522071*[A
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
Publication of GB1306194A publication Critical patent/GB1306194A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/36—Time-delay networks with non-adjustable delay time
    • 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
    • G10K15/08—Arrangements for producing a reverberation or echo sound
    • G10K15/10—Arrangements for producing a reverberation or echo sound using time-delay networks comprising electromechanical or electro-acoustic devices

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

1306194 Reverberation devices; local circuits AKG AKUSTISCHE U KINO-GERATE GmbH 17 May 1971 [19 May 1970] 15220/71 Headings H4J and H4R An artificial reverberation device includes two coils electrically interconnected via an amplifier and mechanically coupled to form a unit in which the coils are mounted side by side with their axes at right angles, the unit being mounted within and connected to a helical spring so that axes of the coils are at right angles to the axis of the spring and the coils are disposed in a magnetic field. The arrangement provides electromechanical damping for torsional oscillations transmitted by the spring the degree of damping being controlled by the gain of the amplifier. In the embodiment shown such a damping arrangement is used in both the input and output systems E and A respectively of the reverberation spring 1 the input and output signals being applied to and taken from the corresponding amplifiers 7 and 7<SP>1</SP>. The coils such as 3 and 4 of a unit may be rigidly interconnected or coupled by a resilient metal strip which attenuates lower frequencies.
GB1522071*[A 1970-05-19 1971-05-17 Expired GB1306194A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT448670A AT298826B (en) 1970-05-19 1970-05-19 Arrangement for damping coil springs excited to torsional vibrations, for generating artificial reverberation

Publications (1)

Publication Number Publication Date
GB1306194A true GB1306194A (en) 1973-02-07

Family

ID=3564664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1522071*[A Expired GB1306194A (en) 1970-05-19 1971-05-17

Country Status (5)

Country Link
US (1) US3742140A (en)
JP (1) JPS5412781B1 (en)
AT (1) AT298826B (en)
DE (1) DE2124164A1 (en)
GB (1) GB1306194A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007332A (en) * 1975-07-18 1977-02-08 Berg Arne L Artificial reverberation system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1757193A (en) * 1930-05-06 hotopp
US2560257A (en) * 1951-07-10 Instrument damping system
FR886491A (en) * 1939-09-05 1943-10-15 Licentia Gmbh Compensation device transforming a measured value into direct current
US2866935A (en) * 1956-02-06 1958-12-30 Robillard Jean Jules Achille Transient measuring apparatus
DE1537605A1 (en) * 1967-12-27 1970-01-08 Geraetebau Hempel Kg Reverberation device
US3526793A (en) * 1968-11-25 1970-09-01 Akg Akustische Kino Geraete Transducer for converting electrical oscillations into torsional vibration and vice versa
US3634595A (en) * 1969-03-31 1972-01-11 Giorgio Pasquali A generator of harmonic signals with a helical spring

Also Published As

Publication number Publication date
DE2124164A1 (en) 1971-12-02
US3742140A (en) 1973-06-26
AT298826B (en) 1972-05-25
JPS5412781B1 (en) 1979-05-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee