Open Sound Meter is a measurement application designed for audio engineers who need to analyse and optimise sound systems. It provides real-time information about frequency response, phase, timing and other characteristics that influence the performance of loudspeakers and acoustic installations.
The software is particularly useful when setting up sound reinforcement systems, aligning loudspeakers and investigating acoustic problems in performance spaces. Its measurement displays help engineers understand how signals change as they travel through equipment and the listening environment.
Open Sound Meter combines several measurement techniques in a focused graphical interface. Results can be stored and compared, making it easier to evaluate adjustments and document system performance.
This is free and open source software.
Key Features
- Real-time spectrum analysis for examining frequency content.
- Magnitude response measurements for evaluating sound system frequency response.
- Phase response analysis and configurable phase display.
- Impulse response measurements for investigating system behaviour.
- Coherence measurements indicating the reliability of transfer-function data.
- Group delay and phase delay analysis.
- Spectrogram displays showing changes in frequency content over time.
- Sound pressure level measurements with supported measurement equipment.
- Level and crest factor analysis.
- Nyquist plots for examining complex transfer-function data.
- Display several measurement charts simultaneously.
- Save measurement projects with their associated settings.
- Compare measurements using virtual summation, subtraction and averaging.
- Built-in signal generator and wavelength calculator.
- Export measurement data in TXT, CSV, FRD and impulse-response WAV formats.
- Cross-platform support – runs on Linux, macOS, and Windows.
Website: github.com/psmokotnin/osm
Support:
Developer: Pavel Smokotnin
License: GNU General Public License v3.0
Open Sound Meter is written in C++. Learn C++ with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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