This application brings the functionalities of a Sound Level Meter (SLM) and a Real Time Spectrum Analyzer (RTA)
to your phone. SPL (dB) of the microphone (internal or external) signal.
SLM: Suitable for traffic or ambient noise analysis (TNI, dBA/dBB/dBC, Leq), calibration with SPL curve.
RTA: Suitable for audio equipment frequency response analysis (spectrum, octaves, peaks, RMS), calibration in 1/1 Octave bands .
For details see the calibration section of the user manual.