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

5 Ansichten (letzte 30 Tage)
APRAMEYAN V
APRAMEYAN V am 26 Aug. 2022
Beantwortet: Jimmy Lapierre am 26 Aug. 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 ?

Melden Sie sich an, um diese Frage zu beantworten.

Antworten (1)

Jimmy Lapierre
Jimmy Lapierre am 26 Aug. 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.

Kategorien

Mehr zu Measurements and Spatial Audio finden Sie in Help Center und File Exchange

Tags

Produkte


Version

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by