如果你的设备是支持数字接口的，那么使用数字线缆能够使质量得到些许的提升，但是除非你使用一个非常大的显示器或者电视机，否则你根本看不出有什么明显区别。
You might get better quality from using digital cables if your devices support it, but unless you have a very large monitor or TV it can be hard to tell the difference.
VadoHD的视频规格依然只有720p，并且没有光学变焦功能，只支持两倍数字变焦，设备通过USB接口与外界连接。
The camera still shoots at 720p with a fixed optical zoom (but 2X digital) lens and attaches directly through its own USB connector.
音乐设备数字接口，或称MIDI，实际上是为目前制造的各种合成器提供的一种通信接口。
Musical Instrument Digital interface, or MIDI, is a communication interface provided on virtually every synthesizer made today.
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