FR720017A - Device for adjusting the sound intensity of musical instruments in which sounds are produced by changing the frequency of an electric current - Google Patents

Device for adjusting the sound intensity of musical instruments in which sounds are produced by changing the frequency of an electric current

Info

Publication number
FR720017A
FR720017A FR720017DA FR720017A FR 720017 A FR720017 A FR 720017A FR 720017D A FR720017D A FR 720017DA FR 720017 A FR720017 A FR 720017A
Authority
FR
France
Prior art keywords
sounds
changing
adjusting
frequency
produced
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
Peter Lertes
Bruno Helberger
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 FR720017A publication Critical patent/FR720017A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G10H5/00—Instruments in which the tones are generated by means of electronic generators
    • G10H5/02—Instruments in which the tones are generated by means of electronic generators using generation of basic tones
FR720017D 1930-07-16 1931-07-15 Device for adjusting the sound intensity of musical instruments in which sounds are produced by changing the frequency of an electric current Expired FR720017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE720017X 1930-07-16

Publications (1)

Publication Number Publication Date
FR720017A true FR720017A (en) 1932-02-15

Family

ID=6627368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720017D Expired FR720017A (en) 1930-07-16 1931-07-15 Device for adjusting the sound intensity of musical instruments in which sounds are produced by changing the frequency of an electric current

Country Status (1)

Country Link
FR (1) FR720017A (en)

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