ClapIR Acoustics Measurement 4+

Stephen Tarzia

Designed for iPhone

    • 3.8 • 12 Ratings
    • Free

iPhone Screenshots


ClapIR is a tool for measuring the acoustic properties of a room. Simply start the app and clap your hands. ClapIR then analyzes the clap's recording to calculate the room's reverberation times and frequency response. It's acoustics engineering made easy!

ClapIR is based on research done at Northwestern University by Prem Seetharaman and Stephen Tarzia.

What’s New

Version 1.4

Better noise rejection for more meaningful results. Export results using standard third-octave frequencies.

Ratings and Reviews

3.8 out of 5
12 Ratings

12 Ratings

Thelgord ,

Good app

Good app, but I wish there was a way to clear the display without multiple undoing. Other than that, it’s a great app that can help me find the best spot for audio recordings.

Astrubal ,

The tool I was looking for !

Thanks a lot for this simple but great tool. It does what it is supposed to do.

You saved my day, thanks again.

KynarroAetone ,

Really cool app!

I liked it! Works well... FIRST TO RATE!!

App Privacy

The developer, Stephen Tarzia, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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