This, very informative, video on DB and LU scales came out earlier today:
Thanks Keith. I’ll take a look later.
I took the liberty of making this a standalone topic as I think it has moved far enough away from the OP.
Very important to know about, my ears will explain (from a few years of listening to loud bands (like Slade and the Who) in my youth!
I’ve now had high frequency loss for 40 years, I miss out on birdsong and a variety of other sounds; some I miss, some I don’t!
Thankyou Keith, you share such good stuff.