KR940001032A - Method and device to control automatic roll playing of electronic musical instruments - Google Patents

Abstract

The present invention decodes a variable level of a set note using a roll wheel in an electronic musical instrument, and processes the pitch of a keyed key to be discontinuously changed in response to the decoded variable level, thereby automatically performing the performance of a roll method. The present invention relates to a method and an apparatus for controlling automatic roll method performance that can be performed in a conventional manner. In a conventional electronic musical instrument, a musical note when playing in a roll method that produces a discontinuous change in pitch frequently used in ADLIB or improvisation. It is to solve the problem that it is difficult to play even in the case of experienced players because it is continuous and high speed, and the beginners are almost impossible to play and are constrained by playing the instrument.

The present invention variably sets the step of changing the pitch of the roll playing using the wheel, and varies the key-ion note information of the keyboard based on this setting information to perform the automatic roll play, thereby accompanying the playing of the electronic musical instrument. It is applied to electronic keyboard instruments by eliminating the limitations, making it convenient to play musical instruments, and allowing the beginners to use roll technique easily.

Description

Method and apparatus for controlling automatic roll playing of electronic musical instruments

Since this is an open matter, no full text was included.

1 is a block diagram of an electronic musical instrument to which the present invention is applied;

2 is a perspective view of a wheel applied to the present invention,

3 is a flowchart of the roll casting performance control method of the present invention;

4 is a graph of discontinuous change in pitch showing a roll effect according to the present invention,

(A) of FIG. 5 is the sheet music actually played by the performer, and (b) the sheet music of (a) is actually played by the present invention.

Claims (2)

The microcomputer 4 scans the keyboard 1 and presses the key information and the function switch 2 to decode the instrument sound data corresponding to a simple tone sound from the corresponding memory 6 and 7 to perform a sound source IC ( 9) In the electronic musical instrument that outputs the instrument sound through the function, the pitch roll switch (2A) for selecting the automatic performance of the roll-driven performance and the roll wheel (28) for setting up and down the discrete variable number of steps of the pitch function The electronic device characterized in that the sound source IC (9) is provided in the switch unit 2 and the microcomputer (4) determines the degree of up / down of the roll wheel (28) so as to output the instrument sound of the roll method in the number of steps. Instrument automatic roll (R0LL) playing control. Determining the pitch and length selected by the performer through the keyboard key scan and detecting the variable resistance value included in the roll wheel to determine roll pitch up / down steps, and inputting corresponding to the determined number of pitch up / down steps. A method of controlling the playing of a roll of an electronic musical instrument, comprising: outputting the pitch information to a sound source IC and updating a pitch value register of the sound source IC to output a variable pitch. ※ Note: The disclosure is based on the initial application.