How to do an octave or third octave band A weighted sound analysis?

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Ifigenia Aslanidou 2019-8-30

Hello everyone,

I have been trying to find a way to get an analysis of my signal using A-weighted octave/third octave band.

What I already have is a singal of the sound pressure (Pa) vs time(s) and the sampling frequency.

The outcome should look like one of these examples:

(The 5.6 or 8 kHz are the center frequencies, Terz means 'one third')

I would really appreciate if someone could help me! Unfortunately I have been looking everywhere and didnt find what I'm looking for.

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