JPS59158198U

JPS59158198U - electronic musical instruments

Info

Publication number: JPS59158198U
Application number: JP5142983U
Authority: JP
Inventors: 山田　恒雄; 茂沖田; 野秋　裕昭
Original assignee: 株式会社ケンウッド
Priority date: 1983-04-08
Filing date: 1983-04-08
Publication date: 1984-10-23
Also published as: JPS6333278Y2

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 the drawing]

図面は本考案に係る電子楽器の実施例を示し、第１図は
ブロック図、第２図Ａは時間の経過に伴って音色（高調
波の含有率）が変化する状態を示すグラフ、第２図Ｂは
エンベロープを示すグラフである。１：クロック発生器、２：セレクタ、３：キーボード、
４：コントローラ、５：コントロール部、６：第１のカ
ウンタ、７：波形データメモリー、８：基本正弦波デー
タメモリー、９：２倍高調波データメモリー、１０：ｎ
倍高調波データメモリー、１１゜１２：高調波乗算回路
、１，３：加算回路、１４：エンベロープ乗算回路、１
５：ＤＡコンバーター、１６：制御回路ミ１７：高調波
メモリー、１８：エンベロープメモリー、１９：第２の
カウンター、２０：発振器。The drawings show an embodiment of the electronic musical instrument according to the present invention, and FIG. 1 is a block diagram, FIG. 2A is a graph showing how the timbre (harmonic content) changes over time, and FIG. Figure B is a graph showing the envelope. 1: Clock generator, 2: Selector, 3: Keyboard,
4: Controller, 5: Control section, 6: First counter, 7: Waveform data memory, 8: Basic sine wave data memory, 9: 2nd harmonic data memory, 10: n
Double harmonic data memory, 11°12: Harmonic multiplication circuit, 1, 3: Addition circuit, 14: Envelope multiplication circuit, 1
5: DA converter, 16: control circuit, 17: harmonic memory, 18: envelope memory, 19: second counter, 20: oscillator.

Claims

[Scope of utility model registration request]

a clock generator that should generate clocks for forming pitches and musical tones; a selector provided after the clock generator for selecting the pitch; and a first counter provided after the selector. , a plurality of waveform data memories that are provided after the first counter and generate a fundamental wave and harmonics that are integral multiples of the fundamental wave; and a plurality of waveform data memories that generate the harmonics that are provided after the first counter. a harmonic multiplication circuit; an addition circuit for adding the data from the fundamental wave and each harmonic multiplication circuit; and controlling the output level of the addition circuit so that the output from the addition circuit has a predetermined envelope. an envelope multiplication circuit for the above, a DA converter provided at a subsequent stage of the envelope multiplication circuit, and a control circuit for controlling the respective harmonic multiplication circuits and the envelope multiplication circuit; a harmonic memory for setting the multiplication state of each harmonic multiplication circuit; an envelope memory for setting the envelope of the envelope multiplication circuit; and a second harmonic memory for controlling the harmonic memory and the envelope memory. and an oscillator for providing a clock to the second counter,
An electronic musical instrument, further comprising a control section for supplying a pitch designation signal to the second counter and the selector.