DE281152C - - Google Patents

Info

Publication number
DE281152C
DE281152C DENDAT281152D DE281152DA DE281152C DE 281152 C DE281152 C DE 281152C DE NDAT281152 D DENDAT281152 D DE NDAT281152D DE 281152D A DE281152D A DE 281152DA DE 281152 C DE281152 C DE 281152C
Authority
DE
Germany
Prior art keywords
bell
sound box
rubber
leather
short
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.)
Active
Application number
DENDAT281152D
Other languages
German (de)
English (en)
Publication of DE281152C publication Critical patent/DE281152C/de
Active legal-status Critical Current

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
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
DENDAT281152D Active DE281152C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE281152C true DE281152C (enrdf_load_stackoverflow)

Family

ID=536916

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT281152D Active DE281152C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE281152C (enrdf_load_stackoverflow)

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