双通道音量调节及电平指示模块设计与实现  

Design and implementation of double-channel volume adjustment and level indication

作　　者：罗纯哲[1] 李探元[1] 

机构地区：[1]91245部队

出　　处：《微型机与应用》2013年第8期85-87,90,共4页Microcomputer & Its Applications

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,对音频信号峰值电平进行采集、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 engi- neering application.

关 键 词：峰值检波 音量调节 电平指示 

分 类 号：TB553[理学—物理]