摘要
在Hi3716C的基础上,介绍了三种广电可视电话的终端方案。三种方案分别为高清交互机顶盒、摄像头与MIC、无线电话、语音遥控器的组合形式。采用高清交互机顶盒、摄像头、MIC的组合形式,设备简单、易于实现,且设备成本较低。利用具备G.711音频编码标准的无线电话采集音频数据,同时引入2.4 GHz技术,提高了传输速度。在机顶盒遥控器上集成语音通信电路,减少了可视电话终端设备的数量,降低了成本。
Three broadcast and television VoIP terminal schemes on the basis of the Hi3716C are proposed. Three schemes are combination form of high-definition interactive set-top box, camera and MIC, wireless telephone, voice remote controller. When using the combinaton form of high-definition interactive set-top box, camera and MIC, equipment is simple and easy to implement, and the cost of equipment is relatively low. However, using wireless telephone with G. 711 audio coding standard to collect audio data,it can improve the transmission rate by the introduction of 2.4 GHz technology. The top-box remote controller integrated voice communications circuit can reduce the number of video telephone terminal equipments and the cost.
出处
《电声技术》
2013年第7期77-80,共4页
Audio Engineering
