那是因为这是用于视频捕获，因此需要像VISCOM Audio Sound Record Pro ActiveX这样的东西.如果您查看这些功能，就会发现声音不是其中之一.

祝你好运！

That''s because that is for video capture, you need something like VISCOM Audio Sound Record Pro ActiveX with that. If you look at the features you''ll see that sound isn''t one of it.

Good luck!

你好E.F. Nijboer

所以您是说我们必须同时使用Audio sound Record Pro和videocap
收听音频.

Hello E.F. Nijboer

So you are saying we have to use Audio sound record pro along with videocap
for hearing the audio.