How to remove the cough sound of computer stereo?

Cough sounds from computer speakers may come from:

1. Prompt sound of the system sound scheme: As long as you perform the set operation or the system has some problems, the preset sound in the sound scheme will be played. If you need to make changes, you can do the following: enter the Control Panel-Sound and Audio Devices, set the original "Sound Scheme" to "Mute", or modify the items in the original sound scheme and save them as files.

2. Prompt tone of application settings: for example, the prompt tone of QQ system, such as "Deng Deng Deng" when friends are online, "Didi Di" when friends talk, and cough when sending system information. If you need to modify or cancel, you can go to the Settings tab in the main control panel of QQ to make relevant settings. Other applications operate similarly.