JPS58131098U - Chorus effect generator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an output waveform diagram of the attack signal generator shown in FIG. 1, and FIG. 3 is a circuit diagram showing an example of the same generator. 1... Sound source section, 2... Attack signal generator, 3.
... Formant filter, 4□, 4□, 43... delay device.

Claims (1)

[Scope of utility model registration request] The sound from the sound source section with a vibrato function is passed through a formant filter to form a waveform having the spectrum of a human voice, and then input to each of the delay circuits of multiple channels. By inputting low frequency signals that are out of phase with each other, in response to key presses, the original voltage value changes greatly instantaneously, and then passes through the original voltage value according to an exponential function until it reaches a predetermined voltage value C. An output signal of a device that generates a voltage that changes and later returns to the original voltage value is applied to a vibrato terminal of the sound source section or a modulation terminal of the switching clock signal generation circuit, and a chorus sound effect is generated from the output of the delay circuit. A chorus effect generating device characterized by obtaining.