JPS5886697U

JPS5886697U - electronic musical instruments

Info

Publication number: JPS5886697U
Application number: JP18219081U
Authority: JP
Inventors: 栄一郎青木
Original assignee: ヤマハ株式会社
Priority date: 1981-12-09
Filing date: 1981-12-09
Publication date: 1983-06-11

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はこの考案の電子楽器における操作部の一実施例
を示す図、第２図はこの考案による電子楽器の回路部分
の一実施例を示すブロック図、第３図は第２図における
音源回路の具体例を示すブロック図、第４図は音源回路
の部分的変形例を示すブロック図である。、　１・・・・・・操作部、１ａ・・・・・・表面シー
ト、１ｂ・・・・・・パターン、ＩＣ・・・・・・圧電
シート、１ｄ・・・・・・電極、２□〜２１゜・・・・
・・音源回路、２１・・・・・・タッチ強さ検出回路、
２２・・・・・・オン・オフ検出回路、２５・・・・・
・変調指数発生回路、２６・・・・・・振幅データ発生
回路、３０．３４・・・・・・アドレスカウンタ、３１
，３６・・・・・・波形メモリ、３５・・・・・・加算
器、３８・・・・・・ＤＡ変換器。Fig. 1 is a diagram showing an embodiment of the operating section of the electronic musical instrument of this invention, Fig. 2 is a block diagram showing an embodiment of the circuit section of the electronic musical instrument of this invention, and Fig. 3 is the sound source in Fig. 2. FIG. 4 is a block diagram showing a specific example of the circuit. FIG. 4 is a block diagram showing a partial modification of the sound source circuit. , 1...Operation unit, 1a...Top sheet, 1b...Pattern, IC...Piezoelectric sheet, 1d...Electrode, 2 □〜21゜・・・・
...Sound source circuit, 21...Touch strength detection circuit,
22...On/off detection circuit, 25...
・Modulation index generation circuit, 26...Amplitude data generation circuit, 30.34...Address counter, 31
, 36... waveform memory, 35... adder, 38... DA converter.

Claims

[Scope of utility model registration request]

5. An electronic musical instrument comprising an operating section, a detection means for detecting a touch state of the operating section and outputting a detection signal, and a sound source circuit for generating a percussion instrument sound whose timbre and amplitude are controlled by the detection signal. An electronic musical instrument characterized in that the sound source circuit is configured by a frequency modulation type sound source circuit whose modulation index and amplitude data are controlled by the detection signal.