This depends on the sound source(s) of interest and the situation. Sound level decreases by 6 dB for each doubling of distance. For example, if a sound source measures 110 dB at 1 meter, then at 2 meters you will measure 104 db, at 4 meters 98 dB etc. In a completely quiet environment, you […]
The LoRa network is not suitable for sending large data packages such as WAV. That is why we only send the sound pressure/level in decibels. We have, however, developed a technical blueprint allowing us to send audio fragments via LTE-M. Sign up for our newsletter to stay up to date.
We do not buffer measurement data locally on the sound sensor. Due to the maximum duty cycle, we can only transmit once every minute. Every message sent contains the maximum amount of data. As a consequence, there wouldn’t be enough bandwidth left to send buffered data once the connection is restored.
Yes, both are one single sample of the measurement interval.
Yes, the calculation is completely separate.
Yes, the diameter of the microphone is 1/2″ and suitable for a normal portable sound calibrator.
Leq(A) Leq(C) dB(A) fast dB(A) slow dB(C) fast dB(C) slow On Wikipedia you will find more information about the meaning of different sound measurements and weighting.
Yes. The Ranos dB is calibrated before shipping and comes with a factory calibration. Regular sound level calibrations can be done with a Calibrator. In Dashboard+, measurement deviations can be corrected. The Ranos dB frequency response is calibrated at the factory to be within +/- 2 db, at the moment this can only be done […]
