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We can hear from 0 dB, that is the threshold of hearing up to 130 dB that is the threshold of pain.
The average human can hear frequencies of up to 20,000 Hertz.
1654 decibels an hour
A human ear capable of detecting sound at a level of around 12 hz. A decibel is not the correct measurement unit for measuring the human range of sound.
0 dB is the hearing threshold = 0,0002 microbar
20,000 Hz (20kHz) is the (ideal) highest FREQUENCY that a healthy human ear can hear. With regard to loud sounds, a sound LEVEL of 120 decibel (dB) causes pain, and a level of 140 dB causes deafness.
We can hear from 0 dB, that is the threshold of hearing up to 130 dB that is the threshold of pain.
The average human can hear frequencies of up to 20,000 Hertz.
The Decibel was named after Alexander Graham Bell who is the inventor of the telephone and the bell is a sound known as the Decibel. The Decibel ranges from 0 to 140, with 140 being the highest.
20,000 Hz (20kHz) is the (ideal) highest FREQUENCY that a healthy human ear can hear. With regard to loud sounds, a sound LEVEL of 120 decibel (dB) causes pain, and a level of 140 dB causes deafness.
6
1654 decibels an hour
A human ear capable of detecting sound at a level of around 12 hz. A decibel is not the correct measurement unit for measuring the human range of sound.
The decibel level of a rat depends on the measurig distance to the rat. The closer you are to the mouth of the rat the louder the noise you can measure will be.
60 i think
Scroll down to related links and look at "Decibel Sound Pressure Level Examples".
Decibel (dB) * The Bel is the primary unit. However, the scale is too large. So for human hearing, we use the deciBel, where each deciBel is 1/10 of a Bel. this is abbreviated dB.