PWM结合电阻网络实现16位WAV语音播放  

16-bit WAV Audio Play Based on PWM and Resistor Network

作　　者：黄玲[1] 吴凌云[1] 

机构地区：[1]长江大学电子信息学院,荆州434023

出　　处：《单片机与嵌入式系统应用》2014年第9期75-77,共3页Microcontrollers & Embedded Systems

摘　　要：本文提出一种利用PWM和电阻网络实现16位高音质WAV语音文件播放的设计,并提给3种解决方案和对比论证,阐述了其实现过程并通过实验验证。该方法不仅成本低,其音质接近16位精度,而且由于WAV编码方式简单,在单片机上解码容易实现。实验结果表明,该方法音质效果较好,可应用范围广。16-bit high-quality WAV audio play is realized using PWM and resistor network. Three kinds of solutions and contrast argu- ments are proposed. Then their implementation process and experimental results are described. This method has low cost and 16-bit precision. Because of simple WAV encoding, decoding is easy to implement on microcontrollers. Experimental results show that the audio quality is good and the applied range is wide.

关 键 词：WAV PWM 电阻网络 

分 类 号：TN912.2[电子电信—通信与信息系统]