how to compute the RMS dB(A) value from an acoustic signal in a spectrum ?

5 visualizzazioni (ultimi 30 giorni)
APRAMEYAN V
APRAMEYAN V il 26 Ago 2022
Risposto: Jimmy Lapierre il 26 Ago 2022
i have processed the .wav file and plotted the db(a) vs freqyncy data. But the RMS value using the in-built function of matlab returns a different value compared to Siemens Test center that i used to proess the audio file.
i Believe there is a difference between the rms formulas used in both the cases.
can anybody help me ?

Accedi per rispondere a questa domanda.

Risposte (1)

Jimmy Lapierre
Jimmy Lapierre il 26 Ago 2022
It might just be a matter of scaling. For example, if there is a microphone involved, you may need to calibrate for that if the other software is.

Categorie

Scopri di più su Measurements and Spatial Audio in Help Center e File Exchange

Tag

Prodotti


Release

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by