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RE: Before giving up on the big room ...

Posted by artemus (A) on August 18, 2015 at 14:55:38

In Reply to: RE: Before giving up on the big room ... posted by Mick Wolfe on August 18, 2015 at 13:47:56:

"his small room isn't that small. It could be very good as well with the help of acoustic treatments."

FWIW, I did a room calculation using

http://www.bobgolds.com/Mode/RoomModes.htm

I got this. I don't have a clue as to what it is saying though.

Computed Information:
Room Dimensions: Length=13.67 ft, Width=11.42 ft, Height=8.17 ft
Room Ratio: 1 : 1.39 : 1.67
R. Walker BBC 1996:
- 1.1w / h < l / h < ((4.5w / h) - 4): Pass
- l < 3h & w < 3h: Pass
- no integer multiple within 5%: Pass
Nearest Known Ratio:
- "21) Origin unknown: meant for small room" 1 : 1.5 : 1.6
RT60 (IEC/AEC N 12-A standard): 217 ms
- ±50ms from 200Hz to 3.5kHz = 167 to 267ms
- ±100ms above 3.5kHz = 117 to 317ms
- <+300ms at 63hz = 517ms
- 300RT60 (ITU/EBU Control Room Recommended): 178 ms
- ±50ms from 200Hz to 4kHz = 128 to 228ms
- <+300ms at 63hz = 478ms
- 200Absorbtion to achieve ITU RT60: 350 sabins
Volume: 1275 ft^3
Surface Area Total: 720 ft^2
Surface Area Floor: 156 ft^2
Surface Area Ceiling+Floor: 312 ft^2
Surface Area Front Wall: 93 ft^2
Surface Area Front and Rear Wall: 186 ft^2
Surface Area Left Wall: 111 ft^2
Surface Area Left and Right Wall: 222 ft^2
Surface Area 4 Walls: 408 ft^2
Surface Area 4 Walls + floor: 564 ft^2
(sabins - front wall - carpet) / Left+Right+Rear wall: 32 %
(sabins - front wall) / Left+Right+Rear wall: 81 %
Schroeder Fc: 132hz
Frequency Regions:
- No modal boost: 1hz to 41hz
- Room Modes dominate: 41hz to 132hz
- Diffraction and Diffusion dominate: 132hz to 528hz
- Specular reflections and ray accoustics prevail: 528hz to 20000hz
Count (41.3-236hz) : Axials=12, Tangentials=47, Obliques=60
Count (41.3-100hz) : Axials=5, Tangentials=4, Obliques=1
Critical Distance (direct = reverberant field): 120ft



=========================
You paid HOW MUCH for that electrical receptacle?!!! Are YOU nuts?

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