If so, then you have some device that is disconnecting and connecting on you.
If you have anything connected to your laptop, unplug it and see if you still hear the sound. If so, then it's one of your internal devices that's disconnecting and connecting. If not, then plug them back in one at a time and wait to see if you hear the sound again until you find the culprit.
In addition, open Device Manager to see if you see any device listed with an exclamation mark.
You'll probably need to reinstall the drivers
for the device once you find out which one is doing this.