SINIAT REVERBERATION TIME CALCULATOR
Additional Info
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Project Information
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Reverberation Time Requirements
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Room Dimensions and Properties
 m2
 
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Sound Absorbers
List of absorbers
S. No. Select or remove Type Subtype Insulation Cavity (mm) Applied area (m2) Applied to Remarks
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Calculation Results
Reverberation Times (T)
Frequency 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz
Before adding absorbers 2.10 s 2.66 s 4.20 s 4.10 s 3.94 s 2.57 s
After adding absorbers
Minimum required
Maximum allowed
Compared with requirement
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Notes
  • The reverberation time results provided above are theoretical estimates only.
  • The location of sound-absorbing surfaces and sound-reflecting surfaces to achieve the design reverberation time is important.
  • The actual reverberation time in a room space depends on multiple factors and needs to be tested or verified by acoustics experts.
  • Where the control of reverberation in spaces is carried out for noise control purposes, the reverberation time should be minimized as far as practicable.
  • The sound absorption coefficients of Siniat's acoustic products are based on the latest published technical literature in Australia or overseas.
  • The sound absorption coefficients of non-Siniat products, occupancy and furnishing, etc. are either based on EN 12354-6:2003 or reliable online resources.
  • The calculation model is based on Sabine equation and is best applied to enclosed spaces with:
    • regular shaped volumes: no dimension should be more than 5 times any other dimension;
    • evenly distributed absorption: absorption coefficient should not vary by more than a factor of 3 between pairs of opposite surfaces, unless good sound diffusion objects are present;
    • not too many objects: total volume of objects is less than or equal to 20% of room volume.