Soundman2020 - Studio Design Forum

I would encourage really playing around with speaker and listener positions. For sure try the speakers almost touching the Front Wall ( I often use masking tape to prevent scratching, that close!) Play with width. Let's see if the frequency of that null changes with distance to the side wall. Would ...

The results look pretty good to me. Even your Topt is fairly close to EBU recommendations. Those pesky LF dips are always there to try our patience. Part of it is our desire for symmetry, plus the speaker is often half height, so many central or equal distance null whammies there all complicit. I wo...

Early days perhaps. I use Altiverb all the time. Over time it has included extra tweaks to alter the parameters of the sample in use. It still sounds utterly 'real' even if one stretches the issue. I guess that suggests that virtual modelling is probably very possible. Particularly with a new build ...

Double Dees.....

The substrate actually absorbs well from 125 Hz to 160 Hz and then drops off precipitously (see attached).

The attached test seems to state that the material was tested using a D mounting. This would create a damped membrane type of resonant absorption.

DDDD

Indeed sgleason. Two of the edges of the two traps are removed by butting together. So a loss there. But a gain due to the doubled surface area. I just wonder if there is any testing out there to know accurately if it is better to gap them, and if so how much before they begin to operate similar to ...

https://www.marshallday.com/innovation/ ... ning-room/
http://www.rpgeurope.com/products/product/tools.html
http://www.rhintek.com/cara/cara21desc.php
https://www.roomeqwizard.com/help/help_ ... alsim.html

DD

Now if there is significant mass to the absorbent material and membrane absorption occurring... And 'springiness' I reckon. A 705 / Minitrap panel is quite heavy and quite resonant. This is quite audible and holds up when they are free hanging or even outdoors. I sometimes wonder if the less spring...

Corner straddling has a unique effect. In a way the fibre is as both as close to both boundaries, and as far from them without springing a leak. Even a 2” gap collapses the boost. http://forum.studiotips.com/viewtopic.php?f=8&t=534

I’m on a phone here. Eric’s Baffles seem to be 65 mm with 35mm air. I am not seeing data with no airgap. Am I missing something? Ta all

Interesting random pic bert! On another forum deedeeyah posted spectra of presumably large gigs. Pronounced HF roll off. I have looked at Erics Baffles and Ethans fibre tests. The reason I started this ball rolling here is that I am not at all convinced that isolated panels do benefit from airgaps. ...

Great answer. I have seen Lab Reports and the Bobgolds treasure chest of data. But those samples are all 10 Metres or Yards Square, and contiguous. But I think the devil is in the detail. At the edge of the envelope, let's consider just one regular MiniTrap on a reasonable sized regular domestic bou...

I would like to start a little discussion of the Air Gap. A suspended ceiling with say 1" Fibre tiles and a 16" Air Gap performs remarkably well, very high absorption down as far as 50Hz. Note the whole boundary is treated. But consider a typical Cloud, say four 4"x4'x2'. In this case...