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this post was submitted on 23 Jun 2024
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3 dB is a doubling/having of sound pressure, so 3.5 is not nothing
As a seasoned sound engineer, yes.
But the scale is logarithmic so take "half of Barcelona's population is exposed to noise levels of 65db", subtract 3.5 from the chart above, and you get...
A conversation.
I did take precautions when I worked with a rock band monitoring the house. 25k watts can make a lot of sound pressure and 3db, along with exposure limits, were very important to keep an eye on.