摘要
提出了一种双通道音量调节和峰值电平指示模块方案。模块基于STC12C5A60S2单片机和数字电位器，利用单片机丰富的片内资源和I／O口，通过软件对双通道音量进行调节和音频信号峰值电平的采集、计算和显示，实现了双通道音量程控调节和峰值电平动态显示功能。经实际验证表明：模块具有体积小、成本低、结构简单、操作使用方便等特点，具有较高的性价比和实用价值。
A double-channel volume adjustment and level indication module is introduced in this paper. The peak of audio signal is sampled, calculated, and displayed, through the rich resource in STC12C5A60S2, to achieve a function of double-channel volume adjustment and level indication. The system has advantages of small size, low cost, simple construction, with better engineering application.
出处
《微型机与应用》
2013年第7期86-88,共3页
Microcomputer & Its Applications
关键词
峰值检波
音量调节
电平指示
peak demodulation
volume adjustment
level indication
