I would like to find an acoustically transparent material for speakers and am looking for something with an interesting elegant texture. I am wondering if raw silk is acoustically transparent? Or does anyone have another source or idea? Linen? Just I am looking for an eggshell color or vanilla. A little stretch would be desired as well.
If you're asking whether there are any naturally occurring acoustically transparent fabrics, I think the answer is no.
There are plenty of synthetic fabrics that are manufactured to have acoustically transparent properties. Here's a good start.