Originally Posted by coolgeek
I am looking to build a gentle diffusion.. and was thinking of using those 'vinyl tiles' that people use for flooring would work?
Do the vinyl absorb the sound or reflects them? If they absorb, then it won't work.
I was thinking of getting those and then bend them to semi-round... it's easy to build.. just put a bunch of them in right angles, bent into half round shapes...
Basically something like below (contour type diffusers) but built out of vinyl floor tiles rather than wood:
Vinyl will reflect some frequencies (higher f), and transmit (through it) other frequencies (lower f).
Generally speaking, anything more solid than 1/8" Masonite is ok as a diffuser.
The frequencies it has a hope of diffusing are proportional to the size of each.
The rule of thumb is:
- at wavelengths significantly smaller than the object, get defused as light bouncing off a curved mirror.
- wavelengths significantly larger than the object, ignore the object
- wavelengths the same size as the object, reflect randomly.
With all of these being identical, spaced identically, you might get lobbing effects. Random sizes with random placement, give better diffusion.