查询词典 video bandwidth

The basic video bandwidth required to transmit luminance and chrominance signals is 4/2 MHz for the NTSC standard.

NTSC标准中亮度信号和色度信号传输所要求的基本视频带宽是4.2MHz。

As a result, by subsampling these chroma values, video standards and compression algorithms can achieve large savings in video bandwidth.

于是，通过对这些色度值进行子采样的方法，视频标准和压缩算法可以大幅度缩减视频带宽。

It is also possible to set auto range operation only one or two out of resolution bandwidth, video bandwidth and sweep time.

它也有可能设定自动的远程作战只有一个或两个号决议的带宽，视频带宽和扫描时间。

IN HDTV, the basic video bandwidth is at least twice of the conventional standard.

而HDTV的视频带宽至少要是常规标准的两倍。

This might lead to the impression that a wider video bandwidth is always preferable to a narrower one, but that is not the case.

这将会导致宽的视频带宽总是比窄的要好的印象，但事实并非如此。

Because of this, the instrument's video bandwidth is an important characteristic when peak detection measurements are required.

功率计只对信号的包络产生响应，为此功率计的视频带宽对于峰值测量是非常重要的。

An important factor to determine which video bandwidth to use to transmit motion video is its temporal specification.

用何种带宽传输动态视频在很大程度上取决于它的时序说明。

Video output is proportional to Q whereas video bandwidth is inversely proportional.

视频输出正比于Q，而视频带宽成反比。

Thought the monitoring of bandwidth fluctuation by MAC layer, we can estimate the available bandwidth of next period and dynamically adjust the feedback extraction bitrate after considering the issue of video latency on the buffer of decoder in order to reduce the impact of the variation of network bandwidth and channel condition on real time video communication.

透过WiMedia 媒介存取控制层监测频宽来估计下一段时间可用频宽并同时考虑解码器缓冲区的延迟效应后回报，进而调整可调适视讯编码所要传送的位元组，以减少频宽变动与无线通道品质的干扰。

The current second-generation and third-generation (3G) mobile communication systems operate with narrow audio bandwidth limited to 200-3400Hz.As wireless systems are evolving from voice-telephony dominated services to multimedia and high-speed data services, the introduction of a wider bandwidth of 50–7000 Hz speech codec which provides substantially improved speech quality and naturalness is quite necessary. The Adaptive Multi-rate Wideband speech codec which was selected by 3GPP/ETSI and ITU-T can provide natural, present and comfortable codec speech and have higher intelligence and robustness in wireless systems. A wide range of applications are envisioned for AMR-WB, including ISDN wideband telephony and audio/video teleconferencing,Voice over IP and Internet applications such as IP video conferencing, voice mail, voice chat, broadcast, and voice streaming.

随着现代无线通信特别是多媒体通信的发展，人们对语音通信的质量要求越来越高。3GPP/ETSI TS026和ITU-T 722.2标准确定的自适应宽带语音编解码器AMR-WB具有的低比特率、互操作性和高语音质量，使之不仅能够应用于无线通信领域，而且可广泛应用于其他各种通信系统和平台，包括：VoIP、因特网、PSTN高质量音频会议、音频流、ISDN宽带电话、ISDN可视电话和电视会议等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。