Open Sound Meter 4+

Audio system tuning

Pavel Smokotnin

Designed for iPad

    • $49.99



Engineer tool for develop, tune and align audio systems
Spectrum(RTA), Magnitude, Phase, Impulse, Step, Coherence, Spectrogram, Impedance, Crest factor, Nyquist

Open Sound Meter is an application for tuning audio systems in real-time.
It allows you to measure all needed functions:
- Spectrum
- Magnitude
- Phase
- Group delay
- Phase delay
- Coherence
- Impulse
- Step
- Spectrogram
- Impedance
- Nyquist plot
- Crest factor

You can store any result. Stored measurement can be adjusted by gain, delay and polarity.

Math function gives you a possibility to average your measurements, virtually join them and predict how they will sound together.

For better results, you can apply calibration files for your microphones.
For the measurement, you can use any iOS compatible audio interface or connect to your mixing console. Save the project on the device or in iCloud.

Direct connection works with Behringer X32, Midas M32, Allen&Heath Qu, DiGiCo S21/S31/SD12/UB-MADI, Yamaha TF and other consoles that have audio over USB. For Yamaha CL/QL you can use Dante AVIO adapter.

On M1 you need to select your working audio device as the defaults system audio input and output.

What’s New

Version 1.1.4

- Impulse response time window is equal for frequency responses time window
- Add impulse response for math source in vector mode
- Add negative delay option
- Increase sweep sine period
- Add iPhone support
- Bug fixes and optimisations

App Privacy

The developer, Pavel Smokotnin, 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


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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