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Enter room dimensions.
The program will automaticly calculate resonanses and detect isolated and degenerate modes.
Use the dot as a separating char.
Room measurements
Lengthm
Widthm
Heightm
Air temperature
°C
Reverberation time
sec
Speed of sound
344m/s
Room volume
45.5m3
Critical distance
0.9m
Room proportions (H:L:W)
Frequency regions
Lower boundary of audible range F1
16Hz
Boundary of sound pressure zone F2
34Hz
Schroeder's frequency F3
210Hz
Boundary of reflection zone F4
840Hz
Upper boundary of audible range F5
20000Hz
1. If several axial modes coincide (spacings between
modal frequencies are equal to zero), they are called
degenerate modes. This often causes a distinct peak
in the amplitude-frequency response curve.
Problematic frequencies will be marked in red.
2. If two axial modes are separated 20 Hz and more
from each other, they are called isolated modes.
In this case there will be a distinct dip in the
amplitude-frequency response curve between these two modes.
Problematic spacings will be marked in orange.
3. Peak and dips in the amplitude-frequency response
curve cause unwanted voice and music coloration.
This especially refers to the range 95-175 Hz
(marked in light-grey).
4. There are essentially no speech or music colorations
above 300 Hz.
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