John Sayers' Recording Studio Design Forum Archive

Something I forgot to mention - hangers were (IIRC) used when sound levels in studios got 'way too loud, and are intended to provide more absorption of low bass at really loud levels - the "swaying to the beat" syndrome would be unlikely to occur at lower levels, so I'm not sure there would be much difference in performance at LOWER listening levels, with or without the hangers in the above trap. There is already enough absorbent shown to just about eliminate any mid to high frequency sound that strikes that absorber, even WITHOUT the hangers.

So, if you're not planning on recording death metal live at concert volume, I'm not sure you'd need the hangers at all... Steve

Finally I can read something that makes me clear the principle of low frequecy control.

I want to ask someting: I'm planning to build a rehearsal room for metal bands, so I need to control low frequencies. I plan to build some corner slat resonators, but for the lowests sounds I need something drastic.

I know that the depth of the cavity is essential for low freq control. I plan to have a cavity of 600 mm (2' aprox).

My question: Wich sizes (lenght, width, high) should the hangers be in order to control frequencies below 150Hz?

Thanks.

Ed.

Do you have a thread started on this project? There's a LOT more to isolating metal bands than bass traps. In fact, there are situations where bass traps will make the isolation WORSE... Steve

knightfly wrote:Do you have a thread started on this project? There's a LOT more to isolating metal bands than bass traps. In fact, there are situations where bass traps will make the isolation WORSE... Steve

Thanks for answering Steve. I have a thread in Studio Construction called Isolation Strategies where Avare is helping me to design the inner walls in order to acheive good isolation. I tend to think bass traps as sound treatment for reducing reflections inside the already isolated room. Correct me if I'm wrong.

What I intend to do is isolate the room from external noise and reduce the sound leakage from the room to the exterior too; then, after proper isolation is acheived, I'll put some bass hangers to control the low frequecy reflections inside the room, broadband panels for high frequencies and slat resonators for low and mid.

So I understand that first you isolate, and then you put absorption inside.

If you can give us a hint in the other thread it would be great, here's the link:

http://www.johnlsayers.com/phpBB2/viewtopic.php?t=5521

Hi Steve

So, if you're not planning on recording death metal live at concert volume, I'm not sure you'd need the hangers at all

That's not my 1st intention,
my concernement comes from the fact that my control room is only 7' X 9'
What could you add about treating such a small place

Absorb everywhere(especially corners) you don't need to sit or stand, and get a good digital reverb - that small a space won't work without maximum absorption... Steve