3 ms·
If the dB is high enough but the frequency is low enough, the "sound" is actually just a light breeze.
by IIAOPSW 4y ago
If the dB is high enough but the frequency is low enough, the "sound" is actually just a light breeze.
- Dylan16807 4y agoThe minimum wind speed to reach hurricane status has a pressure level of 130kg/m^2. That's 156dB. 170dB as a breeze is up around 160mph.
- IIAOPSW 4y agoSure. The sustained wind of a hurricane could be thought of as a 0 Hz 156 dB sound wave. A more ordinary passing breeze, the sort that we consciously recognize as a breeze rather than as a sound, lasts for around 1-10 seconds. So we could just as well describe an ordinary breeze as noise in the .1-1 Hz part of the spectrum somewhere above 100 dB of loudness (guessing). Alternatively, sound is just a breeze too fast for direct conscious perception.