Audio Toolbox: Error Message - Undefined function or variable 'reverberator'.

Why do I get this message?

The 'reverberator' should be part of the Audio Toolbox?

[Geoff Hayes]

Hartmut - from reverberator documentation, this was introduced in version R2016a. Which MATLAB version do you have?

[Hartmut Schröder]

Actually, I am quite new at MatLab using the most recent version R2019a

[Walter Roberson]

You might not have the Audio System Toolbox installed, or you might not have it licensed.

[Hartmut Schröder]

Sure I have a licence for the Audio Toolbox and installed it yesterday.

Today I even reinstalled the whole MatLab installation.

Unfortunately no change, many of the Autio Toolbox functions do not work. I get comments like

Undefined function or variable 'audioOscillator'.

Undefined function or variable 'reverberator'.

Undefined function or variable 'audioDeviceReader'.

I basically can read files and put them to the output device, that's quite disappointing.

[Walter Roberson]

Did you

restoredefaultpath
rehash toolboxcache

[Hartmut Schröder]

That is working fine.

Thanks a lot !