电子音乐合成器(以下简称合成器)是继电子琴后,用电子电路构成的又一种电子乐器.可从两个方面来说明它和电子琴的差异.从所发的音响来说,它不仅能如电子琴那样模拟各种传统乐器的音色,产生各种优美的乐音,还能发出自然界的各种音响,如风、雨、雷、波涛、火车、枪炮、鸟、虫、兽叫等等的音响.从电路来说,上述各种乐音和音响的音高(频率)、色彩及音量都是由直流电压的高低所控制.例如,改变振荡器的控制电压值就可改变振荡频率.改变滤波器的控制电压值就可改变滤波器的截止频率.因此,合成器所用的电路(元件)可比电子琴少,而音响变化却比电 Electronic music synthesizer (hereinafter referred to as the synthesizer) is the electronic piano after the electronic instrument is composed of another electronic musical instrument can be described from two aspects of it and the keyboard differences from the sound, it not only Like the keyboard, it simulates the sounds of various traditional musical instruments, producing a variety of beautiful musical sounds, as well as various sounds of nature such as wind, rain, thunder, waves, trains, guns, birds, insects, beasts, etc. Sound from the circuit, the above various tones and sound pitch (frequency), color and volume are controlled by the level of DC voltage.For example, changing the oscillator control voltage value can change the oscillation frequency. Change the filter The control voltage of the device changes the cut-off frequency of the filter, so that the circuitry (components) used in the synthesizer is less than the keyboard and the sound changes more than the power