JPH0433099U - - Google Patents
Info
- Publication number
- JPH0433099U JPH0433099U JP7486290U JP7486290U JPH0433099U JP H0433099 U JPH0433099 U JP H0433099U JP 7486290 U JP7486290 U JP 7486290U JP 7486290 U JP7486290 U JP 7486290U JP H0433099 U JPH0433099 U JP H0433099U
- Authority
- JP
- Japan
- Prior art keywords
- modulation
- signal
- value
- musical instrument
- electronic musical
- 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
Links
- 238000010586 diagram Methods 0.000 description 6
Description
第1図は本考案の作用を説明するための図、第
2図は本考案の一実施例としての変調効果装置を
備えた電子楽器の全体的な構成を示すブロツク図
、第3図は実施例装置におけるSINテーブルを
説明するための図、第4図は実施例装置のCPU
により実行される主ルーチンを示す流れ図、第5
図は主ルーチン内のパネル処理ルーチンを詳細に
示す流れ図、第6図は実施例装置のCPUにより
実行されるタイマ割込み処理ルーチンを示す流れ
図、第7図はビブラート効果用の変調信号波形が
生成される様子を示す波形図、第8図はデユーテ
イ比を変化させた場合のビブラート制御データを
示す波形図、および、第9図は従来の一般的な電
子楽器の構成を示す図である。
1……中央処理装置(CPU)、2……読出し
/書込みメモリ(RAM)、3……読出し専用メ
モリ(ROM)、4……タイマ、5……鍵盤部、
6……パネル部、7……楽音生成回路、8……バ
ス、9……増幅器。
FIG. 1 is a diagram for explaining the operation of the present invention, FIG. 2 is a block diagram showing the overall configuration of an electronic musical instrument equipped with a modulation effect device as an embodiment of the present invention, and FIG. 3 is a diagram showing the implementation of the present invention. A diagram for explaining the SIN table in the example device, FIG. 4 shows the CPU of the example device.
Flowchart illustrating the main routine executed by
FIG. 6 is a flowchart showing the panel processing routine in the main routine in detail, FIG. 6 is a flowchart showing the timer interrupt processing routine executed by the CPU of the embodiment device, and FIG. FIG. 8 is a waveform diagram showing vibrato control data when the duty ratio is changed, and FIG. 9 is a diagram showing the configuration of a conventional general electronic musical instrument. 1...Central processing unit (CPU), 2...Read/write memory (RAM), 3...Read-only memory (ROM), 4...Timer, 5...Keyboard section,
6... Panel section, 7... Musical tone generation circuit, 8... Bus, 9... Amplifier.
Claims (1)
号を発生するために使用される電子楽器の変調効
果装置において、 該変調信号の1周期を第1の区間と第2の区間
に分ける分割の比率を設定する手段と、 該第1の区間において該変調信号の振幅を時間
経過に伴つて第1の値から第2の値に変化させる
手段と、 該第2の区間において該変調信号の振幅を時間
経過に伴つて該第2の値から該第1の値へ変化さ
せる手段とを備えたことを特徴とする電子楽器の
変調効果装置。 2 変調信号により変調効果が付与された楽音信
号を発生するために使用される電子楽器の変調効
果装置において、 該変調信号の1周期を複数の区間に分割する分
割の比率を設定する手段と、 該分割された各区間において任意の波形形状で
変調信号を生成する手段とを備えたことを特徴と
する電子楽器の変調効果装置。[Claims for Utility Model Registration] 1. In a modulation effect device for an electronic musical instrument used to generate a musical tone signal to which a modulation effect is imparted by a modulation signal, one cycle of the modulation signal is divided into a first period and a second period. means for setting a ratio of division into sections; means for changing the amplitude of the modulated signal from a first value to a second value over time in the first section; and means for changing the amplitude of the modulated signal from a first value to a second value over time in the first section A modulation effect device for an electronic musical instrument, comprising means for changing the amplitude of the modulation signal from the second value to the first value over time. 2. In a modulation effect device for an electronic musical instrument used to generate a musical tone signal to which a modulation effect is imparted by a modulation signal, means for setting a division ratio for dividing one cycle of the modulation signal into a plurality of sections; A modulation effect device for an electronic musical instrument, comprising means for generating a modulation signal with an arbitrary waveform shape in each of the divided sections.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7486290U JPH0433099U (en) | 1990-07-13 | 1990-07-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7486290U JPH0433099U (en) | 1990-07-13 | 1990-07-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0433099U true JPH0433099U (en) | 1992-03-18 |
Family
ID=31614928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7486290U Pending JPH0433099U (en) | 1990-07-13 | 1990-07-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0433099U (en) |
-
1990
- 1990-07-13 JP JP7486290U patent/JPH0433099U/ja active Pending
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