论文首先研究了用于声音通信系统中的声回波抵消技术。
This thesis represents acoustic echo cancellation in voice communication system.
这些设备将提供声音、数据和视频战术通信服务，为网络中心战提供支持。
The installation will provide voice, data and video tactical communications services that support network-centric operations.
其他的通信形式包括声音、图片和视频数据。
Other forms of communication could include audio, image, and video data.
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