# What is the amplitude unit when we plot wav. files?

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Hello, I work with bioacoustics and in my analysis I usually use softwares like Raven 1.4 and Adobe Audition. However, I've been urged to apply Matlab in my analysis.

I need to calculate underwater sound pressure levels. I usually take the values provided by Adobe (in dBFS) and perform the necessary conversions and calculations to obtain SPL. In Matlab I need to what is the amplitude unit when I open wav. files.

Can I calculate SPL directly from the wav. file using the amplitude levels and calibration data or do I need to insert a calibration file separately?

Thank you, Lis

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### Accepted Answer

Walter Roberson
on 3 Sep 2013

Edited: Walter Roberson
on 3 Sep 2013

##### 2 Comments

Walter Roberson
on 3 Sep 2013

### More Answers (1)

Daniel Shub
on 3 Sep 2013

##### 2 Comments

Mohammed Alkhatib
on 12 Jun 2022

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