Contributing to the file size, in order of importance, are the parameters that set the video bit rate, audio sample frequency, audio bit rate, then frame size.

对文件大小的贡献，按重要性的顺序，依次是视频比特率、音频采样频率、音频比特率，然后是帧速。

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In addition, the video resolution and frame rate have also been doubled in the free version.

还有，免费版本的视频解析度以及帧速也提升了两倍之多。

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This seems to match well to the low frame rate of the source video files.

这看上去非常适合源视频文件的低帧率。

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"Messages", an internet-based audio, text, and video conferencing application that is included with Macs, has high-quality video and frame rate capabilities and is ideal for people who use sign language to communicate.

BBC: Speeding up work for people with disabilities

As video resolution and frame rate increase and stereoscopic projects multiply, the storage capacity and bandwidth performance of these devices and systems becomes staggering.

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It followed up with the VideoNow Color, which uses a proprietary format to play back grainy, low-resolution, color video at a low frame rate.

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