Wrong.
Schumann is ultra-low frequency.
Tinnitus is usually above 15,000 Hz.
Hutchinson
https://www.hutchinson.com/en/mannheim
https://hutchinsonai.com/intro-to-hutchinson/
https://twitter.com/Hutchinson_Co/status/1371503698665439243/photo/1
https://www.hutchinsoninc.com/cool_timeline/1853-from-shoes-to-tires/
>final straw