Does Doubling the Number of Flutes Double the Sound Intensity?

In summary, when two flutists play their instruments at the same intensity, the sound is not twice as loud as when either flutist plays alone at that intensity. This is because the ear's response to sound pressure is not linear, and doubling the sound pressure does not double the perceived loudness. The generally accepted level of change required to be perceived as a doubling/halving of sound level is 10 decibels, and doubling the sound energy by adding the second instrument results in an increase of only 3 decibels. This can be calculated using the formula 10 * log(change in power).
  • #1
stiner1921
1
0
If 2 flutist play their instruments together at the same intensity, is the sound twice as loud as that either flutist playing alone at that intensity? Why or why not?
 
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  • #2
No, because the ear's response to sound pressure is not linear. Doubling the sound pressure does not double the perceived loudness.

- Warren
 
  • #3
The generally accepted level of change required to be perceived as a doubling/halving of sound level is 10 decibels.

Doubling the sound energy by adding the second instrument results in an increase of only 3db.

You can use the formula to go from a linear scale to logarithmic.

10 * log(change in power)


Cliff
 

Related to Does Doubling the Number of Flutes Double the Sound Intensity?

What is sound intensity and how is it measured?

Sound intensity is the amount of sound energy that passes through a unit area in a specific direction. It is measured in decibels (dB) using a sound level meter.

What factors affect sound intensity?

The factors that affect sound intensity include the distance from the source, the size and shape of the source, and the medium through which the sound travels.

How does sound intensity relate to sound loudness?

Sound intensity and loudness are closely related, but they are not the same thing. Sound intensity is a physical measurement, while loudness is a perceived sensation. In general, higher sound intensities correlate with higher loudness levels.

Can sound intensity cause damage to hearing?

Yes, sound intensity levels above 85 dB can cause damage to hearing over time. Prolonged exposure to high sound intensity levels can lead to noise-induced hearing loss.

What are some common sources of high sound intensity levels?

Some common sources of high sound intensity levels include concerts, speakers, power tools, and machinery. Exposure to these sources for extended periods of time can be harmful to hearing.

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