摘要： 提出了一种采用自适应差分脉冲编码技术的语音压缩编码算法,压缩比为8:3,因其算法非常简单,可用单片机(如51系列)实现。 此算法可用于低成本的单片机语音存储系统或语音传输系统。最后还给出了此算法在远距离语音信号传输中的应用实例,在此实例中采用的是C8051F330单片机,在RS-422传输信道上实现了全双工远距离语音信号传输。

关键词: 语音压缩, 自适应差分脉冲调制, 微控制器, 单片机, C8051F

Abstract: This paper presents an algorithm which adopts the technology of adaptive differential pulse code modulation to promote the compress ratio to 8:3 and is fulfilled by SCM (for example the series of 51) because of its simplicity. This algorithm can be applied to low-cost SCM speech memory system or speech transportation system. Finally the instance is presented which is applied to the long-distance transportation of speech signal with C8051F330 SCM on RS-422 channel.

中图分类号: 

• TN912.3