Obviously, you need a microphone and a sound card.

显然，你需要一个麦克风和一个声卡。

You also need a sound card.

还需要使用声卡。

See install or remove a sound card.

请参阅安装或取出声卡。

Sorry! Your computer does not have a sound card.

对不起！您的计算机没有声卡。

Does your computer have a sound card or built in sound?

您的计算机有声卡或内置声音吗？