采集格式 meaning in Chinese

capture format

The characteristic and key technologies of the system are as follows : ( 1 ) in realizing the live broadcast of audio and video , the problem of immense multimedia data and low networks bandwidth utilization ratio is solved by using mpeg - 4 as format of audio and video data . audio and video data are collected by video card cv500 which developed by beijing sum tone company ; meanwhile , the contradictory between the delay of networks transmitting and the quality of the image is well solved by setting a " bi - buffer area "
系统实现中解决的关键问题和特色主要有以下几个方面： ( 1 )在视音频直播功能的实现中，通过使用北京算通公司的cv500视频采集卡和cv500sdk进行视音频数据采集，并采用当今最新的图像和语音编码压缩标准mpeg - 4作为视音频数据的采集格式，既保证了图像的质量，又大大缩减了视音频所占的带宽，从而解决了多媒体数据量大、网络带宽利用率低的问题；同时，通过设置环形缓冲区的办法来调和网络传输延时与图像质量之间的矛盾，取得了较好的效果。