Start the trial version by clicking the "Start Trial" button on the activation screen that appears when you load the plug-in.
You can use all functions of the trial version, but only noise will be output after 5 minutes of activation.
You can reload the plug-in to use it again for another 5 minutes.
You may try the trial version as many times as you like, for as many days as you like, so please try all aspects of all the functions.