| 多通道数字电话的设计方案 |
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| 引用本文： | 吴运明,谢瑞和. 多通道数字电话的设计方案[J]. 电声技术, 2003, 0(3): 42-45 |
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| 作者姓名： | 吴运明 谢瑞和 |
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| 作者单位： | 华中科技大学,电子与信息工程系,湖北,武汉,430074 |
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| 摘 要： | 给出了一种基于DSP技术实现的模数兼容的多通道数字电话的系统设计方案，设计中采用了DSP、低比特率语音压缩编解码、信道复用、快闪存储、串口和调制解调器通信等技术。在通用调制解调器构成的点对点通信平台上实现了两种语音的复用、传输及交换。
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| 关 键 词： | 数字电话 低比特率语音压缩 信道复用 数字信号处理器 调制解调器 |
| 修稿时间： | 2002-07-15 |
Design scheme for multi-channel digital telephone system |
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| WU Yun-ming,XIE Rui-he. Design scheme for multi-channel digital telephone system[J]. Audio Engineering, 2003, 0(3): 42-45 |
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| Authors: | WU Yun-ming XIE Rui-he |
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| Abstract: | This paper presents a design of a multi-channel digital telephone system compatible with both analog signal and digital signal based on DSP technology.In this design many technologies such as DSP,low bit-rate speech compression,channel multiplexing,Flash Memory and communication with modem through se rial port are used.And2-channel speech transfer and exchange are accomplished on point-to-point communica tion flat form which is based on general modem.[ |
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| Keywords: | low bit-rate speech compression channel multiplexing DSP |
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