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Q: Does doubling the decibels of a sound intensity level double the intensity?

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When doubling the field quantity factor by 2 the level increases by 6 dB. When doubling the energy quantity factor by 2 the level increases by 3 dB. When doubling the sound pressure value by 2 the level increases by 6 dB. When doubling the sound intensity value by 2 the level increases by 3 dB. The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity relative to a specified or implied reference level. You usually don't double decibels - you double the factor (ratio). Look at the link "Subjectively perceived loudness (volume), objectively measured sound pressure (voltage), and theoretically calculated sound intensity (acoustic power)".

Sound intensity is measured in watts per meter squared (W/m²). Sound intensity level is measured in decibels (dB). We measure sound with a SPL meter (Sound Pressure Level).

Reference sound intensity Io = 10^−12 W/m² (Threshold of human hearing). Reference sound intensity level LIo = 0 dB-SIL (Threshold of human hearing intensity level). The sound intensity I is measured in watts per meter squared. The sound intensity LI level is measured in decibels (dB).

The decibel level slowly increases and how much power it is producing quickly increases but not as quickly as stated in the webpages! there is no fixed number of times between two decibel levels and different measuring object will be having different number of objects at the same decibel for the next decibel level and a decibel level can be any number of decibels!

40 decibels

Related questions

When doubling the field quantity factor by 2 the level increases by 6 dB. When doubling the energy quantity factor by 2 the level increases by 3 dB. When doubling the sound pressure value by 2 the level increases by 6 dB. When doubling the sound intensity value by 2 the level increases by 3 dB. The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity relative to a specified or implied reference level. You usually don't double decibels - you double the factor (ratio). Look at the link "Subjectively perceived loudness (volume), objectively measured sound pressure (voltage), and theoretically calculated sound intensity (acoustic power)".

That is a missunderstanding. Decibels are never doubled. The ratio or the factor can be doubled.Doubling means the "factor 2". What does doubling of a "sound" mean?Doubling the (sound) intensity is obtained by an increase of the (sound intensity) level of 3 dB.Doubling the sound pressure is obtained by an increase of the (sound pressure) level of 6 dB.Doubling the loudness feeling is obtained by an increase of the (loudness) level of about 10 dB.

120 decibels

Sound pressure is a power and is expressed in W/m2 (the ratio power/area unit); sound intensity level is expressed in decibels (a characteristic of the sound exposure).

Sound intensity is measured in watts per meter squared (W/m²). Sound intensity level is measured in decibels (dB). We measure sound with a SPL meter (Sound Pressure Level).

Psycho acousticians say that 10 dB level difference double the felt loudness. well apex begs to differ!

The acoustic intensity (energy) level is measured in decibels (dB). Your ear drums and microphone diaphragms are moved by sound pressure only. Also the SPL meters (sound pressure level meters) care about the sound pressure level.

10 decibels increase mean measured on a sound pressure level meter. SPL meter. Forget the intensity, because the ear drums and the microphone diaphragms are moved by the sound pressure. 10

Reference sound intensity Io = 10^−12 W/m² (Threshold of human hearing). Reference sound intensity level LIo = 0 dB-SIL (Threshold of human hearing intensity level). The sound intensity I is measured in watts per meter squared. The sound intensity LI level is measured in decibels (dB).

Given P = 100 watts. Reference sound intensity Po = 10^−12 W. Reference sound intensity level LPo = 0 dB. Get power level LP in dB when entering sound power P in watts. Power level LP = 10×log (P / Po) dB = 10×log (100 / 10^−12) = 140 decibels (dB).

Decibels are really more a measure of sound level. 65 decibels would be about the level of normal conversation or laughter.

decibels

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