The brrrrrr sound happens when the computer freezes. The audio is produced by a separate processor which has a limited memory cache. it can load a short audio segment in the cache. Normally the cache is constantly updated with new audio to play. But if the computer freezes, the cache isn't updated, and your audio hardware keeps replaying the same sound clip over and over.
Often, this type of freeze is caused by a hardware driver crashing. Windows pauses for a few seconds waiting for the driver to recover, then eventually kills and restarts it. The reason for the crash could be a corrupt driver, or failing hardware. Next time this happens, check the Windows error logs for clues as to what might have crashed.
https://www.howtogeek.com/123646/htg-explains-what-the-windows-event-viewer-is-and-how-you-can-use-it/
This could be as simple as reinstalling a driver, or (if you don't need that particular hardware) disabling the device.