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"Robert McGregor" <rob### [at] mcgregorfineart com> wrote:
> Hi all,
>
> I've been building some new acoustic treatments for my recording studio and
> worked out a design for a 2D Quadratic Residue Diffuser (QRD) based on the prime
> number 19, but had no idea what it would actually look like....
>
> The physical unit will be 2 x 4 feet and the math says it should diffuse
> soundwaves from ~430Hz to ~5400 Hz, which is just what I need for the rear wall
> of my control room...
Wow, that is some sophisticated thinking! The render looks really cool too.
Would the real-life project be easier (and still perform as intended) if the
blocks were made from some kind of plastic foam, instead of wood?
I also play in a classic-rock band; but for the past nine months, we have
managed to play only about once per month, and only *outside* due to safety
precautions re: Covid-19. (And we all wear masks except when performing/singing
on-stage.) Still not a truly safe environment, I admit. Personally, I would have
preferred to stay safe at home instead. But I was out-voted :-\
Our band's bass-guitar player is currently setting up a home recording studio;
I'll tell him about your experiment.
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