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September 15, 2014

Homework Help: Sound engineering

Posted by Kelvin on Thursday, February 28, 2013 at 12:05am.

A Question of engineering about Sound. How to calculate in step by step? Thank you.

The octave bandsˇ¦ Sound pressure levels in dB re 20 Łg Pa are:
Hz 57 129 220 420 1K 2K 4K 8K
dB 85 95 90 80 88 70 68 72

What is the overall A-weighted sound pressure level?

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