摘要
为了满足市场对低成本和高质量数字对讲机的需求,设计了一种基于混合微处理器C8051F007、无线芯片Si4 432和A D PC M语音编码技术的数字对讲机。给出了高效低功耗的硬件系统设计方案,还给出了包括语音信号采集、ADPCM编码、发送和ADPCM解码播放的详细实现方法。所介绍的方案和算法在实际系统中得到了验证。
In order to meet the market demands for low-cost and high-quality digital interphone, design a kind of digital handset which is based on hybrid microprocessor C8051F007, wireless chip Si4432 and ADPCM speech coding technology. It not only gives hardware system design scheme which is high efficient and low power consumption,but also provides detailed implementation methods, including voice signal acquisition, ADPCM encoding and transmission, ADPCM decoding and playback. The scheme and algorithm which are introduced in this paper have been verified in the practical system.
出处
《信息通信》
2016年第1期59-61,共3页
Information & Communications
