Phenomenon 27 - "Phantom Sounds"
Strange noises with no clear source are prevalent across many Backrooms levels. The Interdimensional Museum of Backrooms History presents what they know about this peculiar phenomenon in the page below: Phenomenon 27 - “Phantom Sounds”.
https://backrooms-wiki.wikidot.com/phenomenon-27
This is a collaborative page. If you want phantom sounds from particular levels included, such as your own level, feel free to edit this page and add your own phantom sounds to the list. Just only edit the phantom sound section of the article and ensure any added audio files comply with the wiki's licensing policy.