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近年来流行的音乐、语言集成电路逐渐风行全国,倍受人们的喜爱。如加装一个电源和音量可调电路,使这些形形色色的音乐集成电路的不同电压均能在其范围内工作,其功率信号既可衰减又可扩展,想必用途更大,前景甚广。
In recent years, popular music, language integrated circuits gradually popular throughout the country, much people’s favorite. Such as the installation of a power supply and volume adjustable circuit, so that these various forms of music integrated circuits can work in different voltage range, the power signal can be attenuated and scalable, presumably more use, the prospect is very wide.