Which toolbox can be used to get the pinknoise function? (have tried audio tool box)

Which toolbox can be used to ge the pink noise function here here? I thought it was the audio tool box, and I have donlwoaded that but matlab still does not recognize the pinknoise function when I call it.

[Rik]

Assuming you also installed the toolbox: which release are you using? The function was introduced in R2019b.

[Sedo]

I am using R2020b

[Ameer Hamza]

Can you show the output of

which pinknoise -all

[Sedo]

[Rik]

Can you confirm this line

ver('audio')

returns something similar to this?

-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.9.0.1467703 (R2020b)
MATLAB License Number: 
Operating System: Microsoft Windows
Java Version: 
-----------------------------------------------------------------------------------------------------
Audio Toolbox                                         Version 2.3         (R2020b)

[Sedo]

Thank yo so much. I actually had R2019a until I ran your suggestion and saw it!