40 dB gain change should give about the ratio of 16 for sensed volume and loudness,
40 dB gain change gives the ratio of 100 for measured voltage and sound pressure and
40 dB gain change gives the ratio of 1000 for calculated sound power and acoustic intensity.
Go to the link: Subjectively perceived loudness (volume), objectively measured sound pressure (voltage), and theoretically calculated sound intensity (acoustic power).
That depends how close you measure to the speaker. The closer - the louder! The distance is very important if you measure with a sound pressure level meter. In 1 meter distance the sound pressure level is arround 60 decibels SPL.
That depends how close you measure to the beak of the bird. The closer - the louder! The distance is very important if you measure with a sound pressure level meter.
A quiet conversation is about 60 decibels. The sound of rustling leaves is about 40 decibels. The sound of a mosquito at 3 meters is said to be about 1 decibel.
The sound pressure level of 80 dB is a 10 times higher measure than the sound pressure level of 60 dB. Louder ist not the correct word, because it belongs to psycho acoustics and tells the loudness feeling.
A 60 decibel sound is 10 times louder than a 40 decibel sound. Decibels follow a logarithmic scale, where an increase of 10 decibels represents a sound that is perceived as being 10 times more intense.
The average range of decibels produced by a piano during a performance is typically between 60 to 70 decibels.
Go through the chart at the link below. Scan the whole chart; some levels are described more than once. Normal conversation is about 60 decibels, and ordinary piano practice is between 60 and 70 decibels.
It's 10 times louder. It is easily looked up.. Example of source: http://www.howstuffworks.com/question124.htm
A drum kit is no decibels. The decibels depends how close you measure to the bat. The closer - the louder! And the louder you play the more decibels you get. The distance is very important if you measure with a sound pressure level meter.
130 decibels -140 decibels close up maybe louder though
70 dB is 10 times louder than 60 dB.
Why not. Go closer to the chimes and you will measure more decibels. The closer the louder.