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用单片机实现各音色电子琴
Design of Multi-voice Electronic Piano by Chip Microcoputer
【摘要】 介绍了音色概念以及音色的决定性因素。针对传统电子琴采用以滤波网络电路对某次谐波量进行放大或衰减来模拟音色的方法,提出了一种新的实现方案,即采用以单片机为主体的数字电路,"软硬"兼施,模拟音色的波形,再通过D/A输出,从而达到听觉上的模拟音色的目的。解决了传统的模拟音色电子电路的设计的复杂性和多变性问题。给出了具体的实现电路、软件设计方法和步骤。
【Abstract】 The concept of timbre and the critical factors which affect timbre is described. Traditionally, we simulate the timbre wave by using filtering network which magnify or attenuate some harmonic wave content. It is simulated the wave by using a chip microcomputer which is controlled by software. The main advantages of the new strategy is regularization and simplification of the design of circuit. It gave the detailed circuit and the of software.
【关键词】 音色;
电子琴;
滤波网络电路;
单片机;
D/A;
【Key words】 timbre; electronic panio; filtering netwok; chip microcomputer; D/A;
【Key words】 timbre; electronic panio; filtering netwok; chip microcomputer; D/A;
- 【文献出处】 控制工程 ,Control Engineering of China , 编辑部邮箱 ,2004年S1期
- 【分类号】TP368.1
- 【被引频次】1
- 【下载频次】1012