Problem: You live on a busy street, but as a music lover, you want to reduce the traffic noise.Part A If you install special sound reflecting windows that reduce the sound intensity level by 20.0 dB, by what factor have you reduced the sound intensity?Part B If, instead, you reduce the intensity by half, what change (in dB) do you make in the sound intensity level?

FREE Expert Solution

Part A

Reduction in loudness of the sound is expressed as:

dL = 10 log (I/I0)

For reduction of sound intensity, dL = -dB

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Problem Details

You live on a busy street, but as a music lover, you want to reduce the traffic noise.


Part A 

If you install special sound reflecting windows that reduce the sound intensity level by 20.0 dB, by what factor have you reduced the sound intensity?


Part B 

If, instead, you reduce the intensity by half, what change (in dB) do you make in the sound intensity level?

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