What's the minimum decibel value?

The lowest hearing decibel level is 0 dB, which indicates nearly total silence and is the softest sound that the human ear can hear. Generally speaking, the louder the sound, the higher the decibel number.

1. What is a good dB number?
2. Is 60 dB twice as loud as 30 dB?
3. What is 1 decibel loud?
4. Is 50 dB Loud?

What is a good dB number?

Sounds at or below 70 dB are considered safe for our hearing. That's the sound of a normal conversation between two people. Sounds at 80 or 85 dB will damage hearing over time. That's the sound of heavy traffic—from inside a car.

Is 60 dB twice as loud as 30 dB?

So, while a sound at 60 decibels is 10 times louder than one at 50 decibels, it is also 100 times louder than a sound at 40 decibels and 1000 times louder than 30 decibels.

What is 1 decibel loud?

A 1 dB change in a sound equates to about a 26% difference in sound energy (remember that a 3 dB difference is a doubling of energy levels). In terms of subjective loudness, a 1 dB change yields just over a 7% change. A 3 dB change yields a 100% increase in sound energy and just over a 23% increase in loudness.

Is 50 dB Loud?

How Loud Is 50 Decibels? 50 dB is as loud as a quiet conversation, a quiet suburb, a quiet office, or a quiet refrigerator. Notice the use of the word 'quiet' when describing this noise level? That's because all sounds between 31-60 decibels are considered quiet.