We will use sound in this example, so you will also need speakers or headphones attached to the audio socket of the Raspberry Pi.

You will need to install a program called flite using the following command, which will let us make the Raspberry Pi talk:

sudo apt-get install flite  

After it has been installed, you can test it with the following command:

sudo flite -t "hello I can talk"  

If it is a little too quiet (or too loud), you can adjust the volume (0-100 percent) using the following command:

amixer set PCM 100%