系统：Windows Server 2012
Camtasia v7.1.1 (Build 1785)
无法启用音频，软件报错No audio device is being detected。
参考资料：camtasia官网
This error will come up if no audio devices are detected.
- Make sure the audio device was installed correctly
- Verify the audio device is plugged into the computer
- Download and install the latest updates to audio device drivers
In Vista and Windows 7 go to control panel > Hardware and Sound > Sound > Recording tab and right click to show disabled devices. Enable any devices that might be disabled.
之后就好了。
为了在录制时不出现麦克风的噪声，
只是想录制系统声音，