| 一种语音压缩和网络传输系统设计 |
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| 引用本文： | 彭仁明,陈擘威.一种语音压缩和网络传输系统设计[J].绵阳师范学院学报,2010,29(5):31-34. |
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| 作者姓名： | 彭仁明 陈擘威 |
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| 作者单位： | 绵阳师范学院物理与电子工程学院,四川绵阳,621000 |
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| 摘 要： | 介绍了一种基于DSP和单片机构成的一种语音压缩和网络传输系统,其电路简单、稳定可靠、成本低廉、具有一定的实用性。语音压缩和网络传输系统主要由语音压缩部分和网络传输两部分构成,语音压缩部分由DSP芯片CT8022,语音A/D MC14LC5480等构成,语音A/D把输入的模拟音频信号转换成PCM码流,DSP芯片将PCM码流压缩成符合ITU-G.723.1标准的语音数据包;网络传输部分由单片机ATm ega64和以太网控制芯片RTL8019等构成,单片机负责把DSP压缩好的语音数据按照UDP格式封装并将封装好的数据包传送给以太网控制芯片RTL8019,最后通过路由发送到以太网指定的计算机上。
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| 关 键 词： | 语音压缩 G723.1标准 TCP/IP格式 网络传输 |
Design of a Voice Compression and Network Transmission System |
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| PENG Ren-ming,CHEN Bo-wei.Design of a Voice Compression and Network Transmission System[J].Journal of Mianyang Normal University,2010,29(5):31-34. |
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| Authors: | PENG Ren-ming CHEN Bo-wei |
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| Institution: | PENG Ren-ming,CHEN Bo-wei(School of Physics & Electronic Engineering,Mianyang Normal University,Mianyang,Sichuan 621000) |
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| Abstract: | Voice signal compression and transmission in modern communication system is of great importance.The circuit of the system described in this paper is simple,stable,reliable and practical,in which the voice signals are compressed by CT8022 chips based on DSP,which is in accordance with the digital signals of ITU-G.723.1.The digital signals have been compressed by using ATmega64(MCU) in accordance with the UDP encapsulation.Finally,they have been successfully sent to the specified computer on the Ethernet thro... |
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| Keywords: | voice compression G723 1 TCP/IP network transmission |
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