How is box size or room size calculated for its resonant frequency.(node?)
Example 12"x12"x12" box
And 16 feet square room with 8 foot high ceiling
When this is found will they both resonate within a 1/4 wavelength of the fundamental frequency
Not exactly speaker related but looking at possibly tuning a large box
Bit vague I know,
Example 12"x12"x12" box
And 16 feet square room with 8 foot high ceiling
When this is found will they both resonate within a 1/4 wavelength of the fundamental frequency
Not exactly speaker related but looking at possibly tuning a large box
Bit vague I know,
Here are a few free calculators.
amroc - the room mode calculator
http://www.bobgolds.com/Mode/RoomModes.htm
hunecke.de | Room Eigenmodes Calculator
Last edited:
f (i,j,k) = 0.5*c*sqrt((i/L)^2+(j/W)^2+(k/H)^2)
f = frequency
c = speed of sound
i,j,k are integers (0,1,2,3,4, etc...)
L is length
W is width
H is height
c=345 meters per second or 1130 feet per second
L, W, H in meters or feet (same units as c)
f(1,0,0) is axial mode related to length
f(1,1,0) is tangential mode related to length and width (bounces off 4 walls)
f(1,1,1) is oblique mode related to all dimensions (bounces off of all walls)
axial modes are strongest, followed by tangential then oblique.
Truthfully, all rooms are bad, but some are slightly better than others.
f = frequency
c = speed of sound
i,j,k are integers (0,1,2,3,4, etc...)
L is length
W is width
H is height
c=345 meters per second or 1130 feet per second
L, W, H in meters or feet (same units as c)
f(1,0,0) is axial mode related to length
f(1,1,0) is tangential mode related to length and width (bounces off 4 walls)
f(1,1,1) is oblique mode related to all dimensions (bounces off of all walls)
axial modes are strongest, followed by tangential then oblique.
Truthfully, all rooms are bad, but some are slightly better than others.
- Status
- Not open for further replies.