The first step of using this tool is to decide which test signal you want to recognize. Clicking on Signal, and you will see that there are three ways to specify the test signal:

Signal menu

From top to bottom, we have From File, Selected Signal and a small list specifying "One -- Male", "Two -- Male", etc. The next thing you may want to do is to specify a model. This system was built to recognize 10 digits plus the word "Oh" for an alternative of word "zero". Models gives you a complete list of the templates that used in this system. Clicking on one of them will let you specify the template that you want to use.

In this tutorial we will use model 4, so select "Four" from Models now, and you should see this:

Selected Model 4