How Much Absorbtion Is Needed

[cfegela]

I have a rectangular room, 11'L x 8'W x 7'H, that I am converting to a studio/control room. This room will be used for mixing, and recording acoustic guitar and vocals.

I have heard that rooms this small should have an unusually high percentage of absorbtion. I have also heard that a high percentage of absorbtion makes for an uncomfortable workspace. Which is correct?

I will be using homemade 2'x4' mineral fiber (2"/8pcf) absorbers for treatment, if it affects your answers.

Thanks in advance...

[Ethan Winer]

CF,

> Which is correct? <

Both. You want as much absorption as possible below 300 Hz, and proportionately less above that frequency.

--Ethan

[cfegela]

Based on this advice and the budget, I am thinking (6) 2'x4'x4" rigid fiber absorbers across the vertical corners and on the ceiling, then spot treat with foam for an RFZ? Am I correct that diffusors in such a small room would not make a noticeable improvement?

[knightfly]

Recording rooms should be a bit more "live" than control rooms - for a single room situation, you might wanna look at variable treatments such as the bottom of this page

http://www.saecollege.de/reference_mate ... stics2.htm

Also, this may help with surface area requirements -

http://www.saecollege.de/reference_mate ... m#verbcalc

HTH... Steve