JPS6436892U - - Google Patents

Info

Publication number
JPS6436892U
JPS6436892U JP13052987U JP13052987U JPS6436892U JP S6436892 U JPS6436892 U JP S6436892U JP 13052987 U JP13052987 U JP 13052987U JP 13052987 U JP13052987 U JP 13052987U JP S6436892 U JPS6436892 U JP S6436892U
Authority
JP
Japan
Prior art keywords
waveform data
key code
pressed
pitch
creation means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13052987U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13052987U priority Critical patent/JPS6436892U/ja
Publication of JPS6436892U publication Critical patent/JPS6436892U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案を適用して構成した電子楽器
の全体回路図、第２図はワーキングメモリに含ま
れる各種レジスタを示している図、第３図はピツ
チＥＧの波形を示している図、第４図は動作のフ
ローチヤートを示している図である。 １……ＣＰＵ、３……スイツチ部、４……鍵盤
部、５……キーアサイナ、７……ワーキンクメモ
リ、８……ピツチＥＧ、９……楽音発生部。 Fig. 1 is an overall circuit diagram of an electronic musical instrument constructed by applying this invention, Fig. 2 is a diagram showing various registers included in the working memory, Fig. 3 is a diagram showing the waveform of the pitch EG, FIG. 4 is a diagram showing a flow chart of the operation. 1... CPU, 3... Switch section, 4... Keyboard section, 5... Key assigner, 7... Working memory, 8... Pitch EG, 9... Musical sound generation section.

Claims (1)

【実用新案登録請求の範囲】 (1) 押鍵操作された鍵のキーコードを記憶する
記憶手段と、 この記憶手段に記憶されている前回押鍵したキ
ーコードと今回押鍵したキーコードとの間の大小
関係を判定する判定手段と、 この判定手段により今回押鍵したキーコードが
前回押鍵したキーコードより小と判断された時に
第１の波形データを作成する第１波形データ作成
手段と、 上記判定手段により今回押鍵したキーコードが
前回押鍵したキーコードより大と判断された時に
第２の波形データを作成する第２波形データ作成
手段と、 上記第１波形データ作成手段にて作成される波
形データに基づいて、今回押鍵した音高より所定
値だけ高い音高から今回押鍵した音高まで変化す
るキーコードを作成すると共に、上記第２波形デ
ータ作成手段にて作成される波形データに基づい
て、今回押鍵した音高より所定値だけ低い音高か
ら今回押鍵した音高まで変化するキーコードを作
成するキーコード作成手段と、 このキーコード作成手段にて作成されたキーコ
ードに基づいて楽音波形データを作成する楽音作
成手段と、 を具備してなる電子楽器。 (2) 上記第２波形データ作成手段は、上記第１
の波形データ作成手段からの波形データを反転し
て波形データを得ることを特徴とする実用新案登
録請求の範囲第１項記載の電子楽器。[Scope of Utility Model Registration Claim] (1) Storage means for storing the key code of the pressed key, and a combination of the previously pressed key code and the currently pressed key code stored in this storage means. and a first waveform data creation means that creates first waveform data when the determination means determines that the currently pressed key code is smaller than the previously pressed key code. , a second waveform data creation means for creating second waveform data when the determination means determines that the key code pressed this time is greater than the key code pressed last time; and the first waveform data creation means Based on the created waveform data, a key code that changes from a pitch higher than the currently pressed pitch by a predetermined value to the currently pressed pitch is created, and the key code is created by the second waveform data creating means. a key code creation means for creating a key code that changes from a pitch lower than the currently pressed pitch by a predetermined value to the currently pressed pitch based on waveform data; An electronic musical instrument comprising: a musical tone creation means for creating musical sound waveform data based on a key code obtained by the electronic instrument. (2) The second waveform data creation means
2. The electronic musical instrument according to claim 1, wherein the electronic musical instrument is characterized in that the waveform data is obtained by inverting the waveform data from the waveform data generating means.
JP13052987U 1987-08-27 1987-08-27 Pending JPS6436892U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13052987U JPS6436892U (en) 1987-08-27 1987-08-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13052987U JPS6436892U (en) 1987-08-27 1987-08-27

Publications (1)

Publication Number Publication Date
JPS6436892U true JPS6436892U (en) 1989-03-06

Family

ID=31385777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13052987U Pending JPS6436892U (en) 1987-08-27 1987-08-27

Country Status (1)

Country Link
JP (1) JPS6436892U (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53103721A (en) * 1977-02-22 1978-09-09 Nippon Gakki Seizo Kk Electronic instrument
JPS54767A (en) * 1977-06-04 1979-01-06 Tsutomu Komiyama Device for planting electrical parts
JPS5919347A (en) * 1982-07-23 1984-01-31 Matsushita Electric Ind Co Ltd Semiconductor integrated circuit and manufacture thereof
JPS6236235A (en) * 1985-08-07 1987-02-17 Fujitsu Ltd Automatic feeding device for printed circuit board
JPS6250898A (en) * 1985-08-30 1987-03-05 ヤマハ株式会社 Electronic musical apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53103721A (en) * 1977-02-22 1978-09-09 Nippon Gakki Seizo Kk Electronic instrument
JPS54767A (en) * 1977-06-04 1979-01-06 Tsutomu Komiyama Device for planting electrical parts
JPS5919347A (en) * 1982-07-23 1984-01-31 Matsushita Electric Ind Co Ltd Semiconductor integrated circuit and manufacture thereof
JPS6236235A (en) * 1985-08-07 1987-02-17 Fujitsu Ltd Automatic feeding device for printed circuit board
JPS6250898A (en) * 1985-08-30 1987-03-05 ヤマハ株式会社 Electronic musical apparatus

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