DE287416C - - Google Patents

Info

Publication number
DE287416C
DE287416C DENDAT287416D DE287416DA DE287416C DE 287416 C DE287416 C DE 287416C DE NDAT287416 D DENDAT287416 D DE NDAT287416D DE 287416D A DE287416D A DE 287416DA DE 287416 C DE287416 C DE 287416C
Authority
DE
Germany
Prior art keywords
sound
throttle
sound box
throttle disc
openings
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
DENDAT287416D
Other languages
German (de)
English (en)
Publication of DE287416C publication Critical patent/DE287416C/de
Active 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
    • H04R1/32—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

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
DENDAT287416D Active DE287416C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE287416C true DE287416C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=542634

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT287416D Active DE287416C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE287416C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Similar Documents

Publication Publication Date Title
DE287416C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE2419899C3 (de) Vorrichtung zur Erzielung von anhaltenden Tonen beim Spielen von mit Saiten ausgestatteten Musikinstrumenten, vorzugsweise elektrischen Gitarren
DE414937C (de) Notenblattwender
DE195974C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT68455B (de) Gleichlauf-Verbindung von zwei durch getrennte Motoren angetriebenen Wiedergabeinstrumenten.
DE1772463C3 (de) Einrichtung zur Erzeugung einer einstellbaren auf einen Tonabnehmer einwirkenden Kraft
DE439724C (de) Vorrichtung zur Herstellung von Notenbaendern u. dgl. fuer mechanisch gespielte Klaviere
DE300545C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE512085C (de) Vorrichtung zum Einstellen von photographischen Apparaten, insbesondere zur Schaerfeneinstellung des Objektivs bei kinematographischen Aufnahmeapparaten
DE233477C (de) Schalldose, deren stifthalter um einen punkt schwingbar gelagert ist
DE831945C (de) Elektrisches Musikinstrument
DE363743C (de) Vorrichtung zur Erzeugung bzw. UEbertragung von Schwingungen
DE624027C (de) Handharmonika o. dgl.
DE919751C (de) Gabel-F-Mechanik fuer Holzblasinstrumente
DE952474C (de) Tonarmlager
DE486788C (de) Geraet zum fortlaufenden Anzeigen der Staerkeaenderung eines Messgutes
DE577613C (de) Sprechmaschine
DE161782C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT15535B (de) Phonograph.
DE878022C (de) Einrichtung zum Regeln des Laufes eines mit Unruhe und Spiralfeder versehenen Uhrwerkes
AT40499B (de) Schalldose für Sprechmaschinen.
DE287286C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE705813C (de) Einrichtung zur Fuehrung von Tonfilmen
DE813777C (de) Wetteranzeige-Apparat
DE576061C (de) Vorrichtung zur Regulierung der Ablaufgeschwindigkeit von Federtriebwerken kinematographischer Apparate