IsoCal App

Take the guesswork out of building acoustics

Let IsoCal take care of the calculations and leave you with the results, so you can focus on your design.

Acoustics isn’t just about mathematics and physics, it’s about creating a space that sounds as good as it looks!

The app is fitting for architects, engineers and everyone else. Design and test your construction in seconds. View the acoustic behaviour to avoid expensive and unforseen consequences later on.

Version 1.4.7 – Nov 12, 2024

Fixes

  • Small corrections to some material properties and material texture.
  • Fixed the auto-scaling of the 2D Material Viewer for ‘Single Panel’ and ‘Double Wall’ calculation modules.
  • Fixed issues with the Diffuse Absorption coefficient calculation.

New Content

  • Added several new elastic line connections from from Hirakawa, S., Davy, J. L. (2015). “The equivalent translational compliance of steel studs and resilient channel bars”

Changes

  • Changed how the sound reduction is calculated above the cross over frequency (fs) for certain materials.
View full version history

Check it out on App Store

Blog posts

Room Acoustics

Room Acoustics – The Basics of Decay Curves

You can get quite a bit of information out of a room by simply snapping your fingers or clapping your…
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Building Acoustics Sound Insulation

Resilient Channel Bar for Sound Reduction – Good or Bad?

Will a resilient channel bar help with improving the Sound Reduction of a partition? While a resilient material for breaking…
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Building Acoustics Flanking sound Sound Insulation

Sound Reduction Index

The weighted sound reduction index is derived with the help from a standardized curve In the frequency range 100 –…
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Room Acoustics Sound Absorption

Floating Acoustic Tiles – A good Alternative?

Does floating acoustic ceiling panels/tiles absorb sound more effetely than a ‘normal’ acoustic ceiling? You probably already know the answer…
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Building Acoustics Flanking sound Impact Noise

Impact Noise And Typical Office Walls

Folding walls are often seen in office buildings. While a folding wall Can be a great solution for making a…
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