04-19-2015, 04:59 AM
Play a trickling stream at a comfortable sound level, next play the track ocean surf, make sure you can still hear the lowest point. Next play track ultrasonic, if you hear the static sound. That means your speakers did not support the ultrasonic.
Because if you set the volume too loud, it'll make you can hear ultrasonic sound or (you've got sensitive hearing).
Because if you set the volume too loud, it'll make you can hear ultrasonic sound or (you've got sensitive hearing).
confucious
