摘要
介绍一种八音阶微型电子琴的设计方法,它采用模拟电路中的RC正弦振荡原理。设计出的电子琴音阶频率满足国际标准,la调频率满足国际标准音C调频率440 Hz。给出电路参数的选取方法和一组参考值。结果证明,用模拟电路方法制作电子琴结构简单,而且成本低廉。
The technique of designing micro-electronic organ with eight musical scales is introduced.It gives the method of design parameters based on RC sine-wave oscillation line.The frequency of la is 440 Hz,which meets the international standard on C harmonica.A group of reference value and some methods are given.It proves that it is convient and inexpensive to design micro-electronic organ with this method.
出处
《现代电子技术》
2010年第9期199-201,共3页
Modern Electronics Technique
关键词
电子琴
模拟电路
频率
RC正弦波振荡电路
八音阶
electronic organ
analog line
frequency
RC sine-wave oscillation line
eight musical scale
