摘要
基于低功耗的无线传输协议802.15与低复杂度的语音编码压缩算法G.721(ADPCM),开发出一套无线控制与传输的语音信号采集系统。实现了语音采集、无线传输、USB回传等功能。硬件方面主要采用射频调制芯片NRF24L01、微控制器芯片8051F206以及USB控制器芯片CY7C68013等。系统具有体积小、低功耗而语音信号质量与传输速率较高的特点。
Based on low -power wireless protocol 802.15 and G. 721 （ADPCM）, this subject develops a wireless trans- mission of voice control and signal acquisition system with voice capture, wireless transmission, USB device functions, using NRF24L01 as RF modulator, 8051F206 as MCU, CY7C68013 as USB device controller. The system with small size and low power consumption can provide high quality voice signal and high data transfer rate.
出处
《电声技术》
2012年第1期51-54,共4页
Audio Engineering
