Can humans hear 0 decibels?
Can humans hear 0 decibels? Humans have a hearing threshold of around 0 decibels. Above this threshold, sounds with higher sound pressure levels are heard as louder noises. Sounds above 90 dB can lead to chronic hearing damage if people are exposed to them every day or all the time.
How loud is the sun on Earth?
After some calculations, he explained that the Sun would theoretically blare out a noise of around 100 decibels, almost as loud as standing next to a speaker at a rock concert or busy nightclub. That's pretty remarkable when you consider the Sun is 150 million kilometers (over 93,000,000 miles) away from us.
What noises are at 4000 Hz?
Examples of low-pitched (125, 250 Hz) sounds include environmental sounds such as ocean waves or a truck, while high-frequency (4000, 8000 Hz) sounds are exemplified by sounds such as a bird (sparrow/robin, not ducks or geese) or a piccolo. [Hz is hertz, cycles per second].