Even if it's not perfect, it's the best I can do... At least, for now...

Let's see if this is the right one...

It was my first experience and sound is far from being good... I still have to work on that... The system (I don't know why!) doesn't accept more than 16 bits... There is a persistant echo which I can't seem to get rid of... Nevertheless, it's done... The next step is the assignement... we'll see 

It's my final version ( I hope!) of the introduction. I think I respected all the specifications... At least, I tried...