P4P800 deluxe booting sound?

What are these multiple beeps i always keep hearing when i boot up? I have zero problem and sometimes, it's one short beep, sometimes, it's two, sometimes it's three and sometimes, it's three hi and one low... But i have absolutely no problem, zero crash...
I tried also to activate the speech and i enabled it into the bios but i have never heard the "boot up" message spoken. I currently have version 1008 of the bios (latest official) but speech did not work also with the 1006, 1007, 1004...