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THE FROG PROJECT
Our Sounds. Click to listen!
This recording was made by Ostergaard Accoustical Associates on June 7, 2021 using a Bruel & Kjaer random-incidence condenser microphone 4189, used in conjunction with a preamplifier, Bruel & Kjaer Model ZC 0032, and a precision sound level meter and octave band analyzer, Bruel & Kjaer Model 2250. A windscreen was used on the microphone to reduce wind noise. The entire system was calibrated before and after the measurements by means of a sound pressure level calibrator with calibration traceable to the National Institute of Standards and Technology. See Ostergaard’s full report HERE
June 7 2021 Frogs
Sound 1. June 7, 2021
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