Open Sound Meter

Plans and prices

Every plan, in full

On the record

Accounts

The privacy policy says account passwords are stored only as a hash and account data is retained while the account exists.opensoundmeter.com · read 2 Oct 2026

Additional tools

Additional features include a wavelength calculator, virtual summation, difference and averaging, a signal generator, equalization and modelling.opensoundmeter.com · read 2 Oct 2026

Analysis

Its measurements include real-time spectrum analysis, magnitude and phase response, impulse response, coherence, group delay, spectrogram and SPL.opensoundmeter.com · read 2 Oct 2026

Calibration caveat

The maker says measurement results depend on microphones, audio hardware, calibration, settings and measurement conditions, and the software alone does not replace required calibration or certification of the measurement chain.opensoundmeter.com · read 2 Oct 2026

Cloud data

Cloud features store measurement and settings data, but the maker says audio recordings and raw audio data are not transmitted to or stored in the Cloud.opensoundmeter.com · read 2 Oct 2026

Cloud retention

After a Cloud subscription ends, data remains viewable for six months, hidden for a further six months, and then is deleted if the subscription is not renewed.opensoundmeter.com · read 2 Oct 2026

Consultation price

Paid consultations are listed from $100 for one session lasting 1–1.5 hours.opensoundmeter.com · read 2 Oct 2026

Device limit

Desktop Pro and Pro + Cloud entitlements are for one user on up to five simultaneously activated devices.opensoundmeter.com · read 2 Oct 2026

Hosting

The maker says its website, accounts and Cloud services are hosted on a dedicated server in Germany operated by Hetzner Online GmbH.opensoundmeter.com · read 2 Oct 2026

Open source

The maker describes the desktop version as open source and invites contributions on GitHub.opensoundmeter.com · read 2 Oct 2026

Project files

Measurement projects can be saved and reopened, with each stored measurement including its settings.opensoundmeter.com · read 2 Oct 2026

Purpose

Open Sound Meter is a sound measurement application for tuning audio systems in real time.opensoundmeter.com · read 2 Oct 2026

Remote API

The Remote API shares active and stored measurements between Open Sound Meter instances and is also available to third-party applications.opensoundmeter.com · read 2 Oct 2026

Support

Users can contact support by email or post in the Facebook group, and the maker offers paid consultations in Russian or English.opensoundmeter.com · read 2 Oct 2026

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