Open Sound Meter

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.

更新履歴
- Groups
- Generator remote control
- SPL spectrum
- Phon spectrum
- Offset level
- Gain numeric
- LTW transforms for windowing from a time domain
- Frequency range for windowing from a frequency domain
- Points added into target trace
- Presets for target trace (default, immersive, car, headphones)
- Peak hold for numeric values
- Add Brown noise
- Add sin burst noise
- Support for csv calibration file format
- Export cal data with PPO and ignore data with bad coherence ( less 0.97 )
- Add 10 and 120 min Leq values
- Limits for linear impulse chart increased
- Enable Bluetooth and AirPlay devices
- Fix for iOS application as a server