This webapp performs a speech synthesis (a.k.a. text-to-speech) using Web Speech API. For it to work, your system shall be equipped with a speech synthesizer (i.e.
To start a speech, type any text you like to the input field and press "Start Speech" button.
You can also specify the language, the speed and the pitch.
To stop a speech, stop "Speaking..." button or just wait for the speaker to finish speaking all the words.