Re: Echo Bar Recording Studio Build Diary
Posted: Sat Jan 28, 2012 10:11 pm
Hi Stuart,
Well to be honest, I did not create them to be tuned to a specific frequency. The way that I understood Ethan's panel traps to work were more across a range of frequencies. Perhaps I misunderstood his design altogether?! He had several designs that he labeled "low frequency" ,"low mid", and "High Frequency" absorbers. He never specifically stated which frequencies they were "tuned" for. It was my understanding that they were effective over a range of frequencies not tuned to a specific frequency. Perhaps I am wrong?! Regardless, I can attest that they are quite effective at smoothing out the low frequency response in my room. I have measured my room's response and am quite pleased with the results.Panel traps have to be sealed, yes, but I don't understand how yours will work, since they seem to be angled across the corner, and therefore the cavity depth is not constant: So how is that going to work? What frequency did you tune them to? I'm not aware of any theoretical basis for how such a trap would work, or how you would go about tuning it, so I'm intrigued about how you did that! Maybe you could explain?
Once again this is why it is important to post while you are building. I hope people will learn from my mistakes. Even so, as I mentioned above the low frequency response in my room is really great.Hangers are great, but yours seem to be touching each other, so they won't be working too well either. You might want to try strapping thin insulation closer to the board, so that they don't touch each other. Maybe wrap them with wire, or some such. Unless the hangers are able to swing freely, with air gaps between them, then they'll just act like expensive absorbers, not like hangers. You also should put some absorption on the rear wall, behind the hangers. That's part of the system.
I don't know what N7 means?! Please explain. My diffusors are custom QRD's. They have a low frequency effective range of 800 cycles and a high frequency effective range of 6700 cycles.Are those N7 QRD's? Looks like they might be.
Yes, sorry about that Stuart. I overlooked you question. Those light cans are in the live room ceiling not my control room. I thought about using "putty pads" as are commonly mentioned around here on the forum but in the end I chose not to. They are not sealed other than some caulk around the rims where the can meets the drywall. Mistake? Perhaps?! But I have not had any isolation issues in the live room. Perhaps the distance from the live room to my control room makes a difference?!Also, you never did answer my question from back in November, about how you isolated the light cans after you cut the big holes in the ceiling drywall.