Gearslutz.com - View Single Post - Above the Schroeder Frequency. Diffraction.

Seamus TM · 28th January 2010

So, I've had a lot of time to kill while I'm waiting for my Roxul truck to get here from Canada. Sometimes that's a good thing, sometimes a bad thing.

Anyway, can anyone explain to me what the "Diffraction and Diffusion Dominate" portion of this room analysis means, and how I would go about addressing that range? As it so happens, I have a few nasty dips in the 100Hz-400Hz area.

Frequency Regions:
- No modal boost: 1hz to 27hz
- Room Modes dominate: 27hz to 101hz
- Diffraction and Diffusion dominate: 101hz to 404hz
- Specular reflections and ray accoustics prevail: 404hz to 20000hz

This is from Bob Gold's site, by the way.

Thanks,
Seamus

28th January 2010	#1
Seamus TM Lives for gear Join Date: Aug 2004 Location: Upstate NY Posts: 1,557 Thread Starter	Above the Schroeder Frequency. Diffraction. So, I've had a lot of time to kill while I'm waiting for my Roxul truck to get here from Canada. Sometimes that's a good thing, sometimes a bad thing. Anyway, can anyone explain to me what the "Diffraction and Diffusion Dominate" portion of this room analysis means, and how I would go about addressing that range? As it so happens, I have a few nasty dips in the 100Hz-400Hz area. Frequency Regions: - No modal boost: 1hz to 27hz - Room Modes dominate: 27hz to 101hz - Diffraction and Diffusion dominate: 101hz to 404hz - Specular reflections and ray accoustics prevail: 404hz to 20000hz This is from Bob Gold's site, by the way. Thanks, Seamus __________________ Seamus Upstate New York