JPS63191397U

JPS63191397U -

Info

Publication number: JPS63191397U
Application number: JP8066087U
Authority: JP
Priority date: 1987-05-27
Filing date: 1987-05-27
Publication date: 1988-12-09

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例に係る電子弦楽器
の全体斜視図、第２図は第１図の線―に沿う
断面図、第３図は第１図の線―に沿う断面図
、第４図は実施例の全体回路構成図、第５図はマ
イクロコンピユータのジエネラルフローを示す図
、第６図はトリガー検出処理のフローチヤート、
第７図は音源関係のレジスタ類を示す図、第８図
はアサイン発音処理のフローチヤート、第９図は
フレツト関係のレジスタ類を示す図、第１０図は
フレツト状態変化処理のフローチヤート、第１１
図は周波数変更処理のフローチヤート、第１２図
はミユーテイング処理のフローチヤートである。１……胴部、４……弦、８……フインガーボー
ド、３０……マイクロコンピユータ、ＴＳＷ……
弦トリガースイツチ、ＦＳＷ……フレツトスイツ
チ、ＭＳＷ……ミユート予約スイツチ。 Fig. 1 is an overall perspective view of an electronic stringed instrument according to an embodiment of the invention, Fig. 2 is a sectional view taken along the line - of Fig. 1, Fig. 3 is a sectional view taken along the line - of Fig. FIG. 4 is an overall circuit configuration diagram of the embodiment, FIG. 5 is a diagram showing the general flow of the microcomputer, and FIG. 6 is a flowchart of trigger detection processing.
FIG. 7 is a diagram showing registers related to sound source, FIG. 8 is a flowchart of assign sound processing, FIG. 9 is a diagram showing registers related to fret, and FIG. 10 is a flowchart of fret state change processing. 11
The figure is a flowchart of frequency changing processing, and FIG. 12 is a flowchart of mutating processing. 1...Body part, 4...Strings, 8...Finger board, 30...Microcomputer, TSW...
String trigger switch, FSW...Fretswitch, MSW...Miyute reservation switch.

Claims

[Claims for Utility Model Registration] (1) At least one string is strung on the body of the musical instrument, each string is provided with a string trigger switch that detects the start of vibration of the string, and a string trigger switch is installed on the finger board. has a structure in which a fret state sensing means is disposed for sensing the fret operation position including an open string state for each string, and when the start of vibration of the string is detected by the string trigger switch, the fret state is detected. In an electronic stringed instrument of the type that starts producing a musical tone of a vibrating string at a pitch corresponding to the fret operation position sensed by the sensing means, a reservation for a miute is made by a miute reservation switch and the aforementioned miute reservation switch. 1. An electronic stringed instrument, characterized in that the electronic stringed instrument has: mute execution means for rapidly muting a corresponding musical tone when a predetermined period of time has elapsed after the start of vibration of the string under such conditions. (2) The electronic stringed instrument according to claim 1, wherein the predetermined time can be set variably. (3) The electronic stringed instrument according to claim 1 of the utility model registration claim, wherein the miute reservation switch is provided on the main body of the instrument. (4) The electronic stringed instrument according to claim 1 of the utility model registration claim, wherein the miute reservation switch is a switch connectably installed outside the main body of the musical instrument.