电声乐器的使用和保护文金恒慎传统乐器的发音源是机械振动的振动体；电声乐器的发音源是石英晶体电子振荡器。电子振荡器可产生多种波形，通过一系列电子技术处理，可以得到各种不同音色、音高、音强和时值的乐音。为了延长电声乐器的使用寿命，了解有关的使用和养护知识... The use and protection of electro-acoustic instruments Wen Jin Hengshen traditional instruments of pronunciation is the source of mechanical vibration vibration; electro-acoustic musical instrument is the source of quartz crystal electronic oscillator. Electronic oscillators produce a wide range of waveforms that can be processed through a series of electronic technologies to produce a wide range of tones with different tonal, pitch, tone and duration. In order to extend the life of electro-acoustic instruments, learn about the use and maintenance of knowledge ...