語音壓縮卡 的英文怎麼說
中文拼音 [yǔyīnyāsuōkǎ]
語音壓縮卡
英文
voice compression card vcc-
Voice compression card vcc
語音壓縮卡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 "
系統實現中解決的關鍵問題和特色主要有以下幾個方面: ( 1 )在視音頻直播功能的實現中,通過使用北京算通公司的cv500視頻採集卡和cv500sdk進行視音頻數據採集,並採用當今最新的圖像和語音編碼壓縮標準mpeg - 4作為視音頻數據的採集格式,既保證了圖像的質量,又大大縮減了視音頻所佔的帶寬,從而解決了多媒體數據量大、網路帶寬利用率低的問題;同時,通過設置環形緩沖區的辦法來調和網路傳輸延時與圖像質量之間的矛盾,取得了較好的效果。The paper gives a project to realize speech communication between teacher and student in network, which is based on speech ' s compression and decompression technology, network communication technology and multithreading technology. the point - to - point full duplex and real time speech communication in network is implemented on lan by using peer to peer model, udp communication technology and simple data - compression method, and programming to the full duplex sound card
以語音壓縮編解碼技術、網路通信技術和多線程技術為主要理論基礎,給出了教員與學員間語音網路通訊的具體實現方案:採用對等模式及udp通信技術和簡捷的數據壓縮技術,對全雙工聲卡編程,在局域網內實現點到點的全雙工的、實時的語音通訊。
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