Table 2 Evaluated self-noise and spectral densities of the SM2M recorder in the one-third octave bands 63 Hz, 125 Hz and 2 kHz.
From: Spatial and Temporal Variability of Ambient Underwater Sound in the Baltic Sea
One-third Octave central freq. | 63 Hz | 125 Hz | 2 kHz |
|---|---|---|---|
Self-noise [dB re 1 μPa] | 63 | 65 | 70 |
Spectral density [dB re 1 μPa2/Hz] | 51 | 50 | 43 |
