可以用组合视频信号和声音信号做很多不同的事，比如

There are lots of different things you can do with a composite video signal and a sound signal. Here are just a few

youdao

在选择照片再现模式时一起显示图像信号和声音信号。

When the picture is reproduced, the controller outputs the image signal of the stored picture, and outputs the stored voice corresponding to the picture.

youdao

当一个人说谎的时候，他们通常会在同一时间激起非语言和声音信号的结合。

When a person is lying they tend to fire of a combination of nonverbal and vocal signals around the same time.

youdao