Circuit for musical instrument
OwnerRaymond A. Cavicchioinventor
Life of this patent
Estimating the term…
Abstract
An electronic circuit connected to and operated by the bass buttons of an accordion to simulate a string bass instrument. The circuit can be disposed in the accordion or remote from the accordion. Each button has a switch associated therewith which couples to means for generating a fixed frequency signal indicative of the actuated button. Signals over a two octave range may be generated and logic circuitry is provided to effectively expand the single octave of available buttons to greater than the single octave such as by a half octave expansion. Output circuitry shapes the output audio signals to allow more or less of the harmonics to pass. A special bass pluck circuit is also provided.
Claims11
An electronic device for use with a musical instrument having bass buttons for simulating a bass string instrument comprising;
- a plurality of switch means each operatively associated with a botton and responsive to actuation of its associated button,
- means coupled from said plurality of switches for establishing a first octave audio signal of a frequency corresponding to the note played, and a second octave audio signal of a frequency corresponding to a note an octave adjacent the one played,
- and logic means including first means responsive to the playing of notes of a first field of the octave, second means responsive to the playing of notes of a second field of the octave, and alternating means responsive to a note being played in said first field for passing in one state the first octave audio signal and in another state the second octave audio signal.
An electronic device for use with a musical instrument having bass buttons for simulating a bass string instrument comprising;
- a plurality of switches each associated with a button and responsive to actuation of its associated button,
- means coupled from said plurality of switches for establishing a first octave audio signal of a frequency corresponding to the actuated button, and a second octave audio signal of a frequency corresponding to a note an octave adjacent the one played,
- and logic means responsive to actuation of predetermined ones of said buttons and including a first means for detecting notes of a first field of the octave that is played, second means for detecting notes of a second field of the octave that is played, and a bistable means coupled from said first means and responsive to a note being played in said first field after a note of said second field for changing the state of said bistable means.
Dependencies are inferred from the claim text.