[Jaruzel]

Is there a non sped up version somewhere?

(Yes, I know how low the frequency is, but a good sub-woofer speaker should be able to play it audibly)

[B1FF_PSUVM]

https://www.google.com/search?q=slow+down+sound+online -> maybe https://www.conversion-tool.com/pitch?lang=en if you feel like DIY