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.
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
