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What is the normal decibel of a human voice?
The decibel level for standard human voices is around 60 decibels, which is also the level for singing birds. Hearing loss occurs at around 110 decibels with painful hearing loss occurring at 130 decibels.
Is The decibel is a unit of pitch?
No. A decibel is one tenth of a bel. The decibel is a logarithmic unit of measurement that expresses the magnitude of a physical quantity relative to a specified reference level. It is a dimensionless unit, because it expresses a ratio of two quantities with the same unit.
Decibels of human voice?
Loudness of normal adult human voice is about 70 db at three feet according to http://www.businessdictionary.com/definition/decibel-dB.html
One decibel is equal to in bel?
One decibel (dB) is equal to one tenth of a bel (B).
What decibel level is created by a helicopter?
If I say: Level of a helicopter = 130 dB, most people are content. Laymen think that a specific decibel value belongs to a noise source. Like heavy truck = 100 dB, jackhammer = 110 dB, rock band 120 dB. That is not correct. Alway is forgotten that the distance from the sound source to the measuring point plays an important role. Sound level decreases by (−)6 dB per doubling of distance from the source. Without any distance a dB value is really nonsense.
