Doppler Effect: Sound Level at 40m from Source of 20dB

AI Thread Summary
The discussion centers on the Doppler Effect and sound level measurements at varying distances from a sound source. At 20m, the sound level is 40dB, and the question arises about the sound level at 40m. One participant suggests that the sound level would halve to 20dB, but this assumption is challenged due to a lack of supporting equations. The conversation highlights the need for a more precise calculation rather than relying on the assumption of halving the sound level. Accurate understanding of sound propagation is essential for determining sound levels at different distances.
jan2905
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At a distance of 20m from a source of sound, the sound level is 40dB. If the observer backs up to a distance of 40m from the source, what will the sound level be?



Basically, I said that the sound level halved = 20dB. Correct?
 
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not necessarily, do you have any equations with which to calculate this?
 
No. This is why I am assuming that it just halves haha.
 

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