fixed bit rate 中文意思是什麼
fixed bit rate
解釋
固定比特率-
Based on the research of videoconference systems of h. 323 protocol over ip networks and the author ' s experiences of implementing h. 323 videoconference systems in remote education area, in this thesis the main factors that affect videoconference quality are analyzed, and a dynamic bit rate allocation model is proposed and partly implemented. this model is designed to dynamically allocate bit rate for multi - media data flow ( including audio data and video data ) in fixed bandwidth network environment. when continuous multi - media packet losses are detected in ip based h. 323 videoconference system, the bit rate of video data is adjusted meanwhile the bit rate of audio data remains unchanged, and the bit rate allocation of multi - media data ( including audio data and video data ) is optimized as a whole effect
本文結合作者在h . 323視頻會議系統應用於遠程教育的經驗,通過對現有的基於ip網路的h . 323協議視頻會議系統的研究,分析了影響視頻會議質量的原因,提出並部分實現了在固定帶寬的網路環境下,基於ip的h . 323視頻會議的多媒體數據包發生丟包、抖動或延時時,保持音頻數據位速率不變,通過對視頻數據的位速率的進行調整,最終實現旨在提高視頻會議語音質量的多媒體數據位速率動態調整的模型。 -
The dsp core of the dm642 is 32 - bit fixed - point dsps of c64x, with the performance of up to 4800 million instructions per second ( mips ) at a clock rate of 600mhz
支持兩路ntsc / pal制式的視頻採集、處理和播放,設計了系統內部數據結構,對視頻幀圖像進行多格式軟體降采樣處理和運動檢測處理。 -
In addition, the spacing between the pulses in the start bit allows the receiver to measure the transmission rate ; the rate does not need to be fixed in advance
除此之外,也不必事先固定傳輸速率,因為接收器可透過起始位元內兩脈沖之間的距離,測量出傳輸速率。
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