17 ms·
> 70-80dB is really very audible. Not at ultrasonic frequencies it isn't (eg at 45KHz) Plus unless it's dbm (or similar) the statement is meaningless.
by Johnythree 5y ago
> 70-80dB is really very audible.
Not at ultrasonic frequencies it isn't (eg at 45KHz)
Plus unless it's dbm (or similar) the statement is meaningless.