采用单片机压缩编码的数码录放系统设计

Using MCU realize speech compression coding digital recording system design

本文设计并实现了一个基于单片机的语音录放系统。文中介绍了G.726语音编解码算法的原理,采用单片机实现对语音信号的压缩存储和编解码功能。详细论述了系统的硬件结构,并给出了适用于单片机的程序优化算法。运行结果表明,解码后语音还原质量较好,符合预期。

The paper analyses the basic principle of the Dielectric Barrier Discharge （DBD） type ozone generator inverter.Based on the analysis of PDM power theory and method,and according to its advantages and disadvantages,a PDM and PWM based control scheme was proposed.By analyzing the processes of the output unit and period of the power,we get the rules of the power of the multi-frequency ozone generator,and it is verified through simulation.