is creating online acoustics tools and articles

Select a membership level

Emphatic Supporter

per month has helped you in the past and you want to say thanks. With your contribution, you want to make sure that the site can prosper and grow in usefulnes.
  • General Support

Business User

per month
My tools are helping you do your job and you earn money using them? Ensure ongoing quality and new features in the future.
  • General Support

About is a website with free tools and training material about room acoustics and sound insulation.

If you decide to support me in this spare time project, a future becomes possible where I can afford to spend more time on new features, tools, and articles.

There is a very, very, very, very,...very long TODO-list and I am so looking forward to bringing new stuff online for all of you!
Let's do this together!!

How it works

Get started in 2 minutes

Choose a membership
Sign up
Add a payment method
Get benefits