Convert audioread file to obtain spl

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I have an audio recording of.wav file type that i want to obtain the spl for it. the audioread() function returns 2 columns with doubles. how do i convert that into spl and plot a graph of spl vs time?
My goal is to obtain the L50 level of the sound recording

Accepted Answer

Star Strider
Star Strider on 29 Oct 2022
Use the Audio Toolbox function splMeter.
  2 Comments
Justin
Justin on 29 Oct 2022
yeap i managed to get my graph up and running. But do you know how I can obtain the L50 sound level from it? or from the audioread() file?
Star Strider
Star Strider on 29 Oct 2022
I do not have the Audio Toolbox, so I have no experience with it. I am not certain what all its options are.
The median function can return 50th percentile value of a vector, and the prctile function can return the percentiles of a data set. See the documentation on each for details.

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