Programming Audio Codec in Altera DE2

Hai everybody...

I am new to this forum.

I am doing a project of generating different sounds(eg. one such thing is beep) using Altera DE2 board.I am done with the code and getting simulations right.

Now I have to generate the sound by connecting speaker to audio codec output.

Here only I have doubts.

1.)How to program this audio codec?

2.)Should I need to write the code for it in my original verilog code?

3.)Or some other option available?

If anyone gives me an idea of doing it,I will be very thankful to them.

Please help........