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I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy:
there is a similar effect which avoids google and has no time limit
https://mynoise.net/NoiseMachines/dataCenterNoiseGenerator.php
no direct link but one of the presets is “The Enterprise”It's funny how if you increase the sub-bass it goes from being soothing to being threatening.