updating sound

I installed avast 5 and when you update the virus database does not get the sound of the “virus database has been updated …” Why?
Sorry for my English I am Spanish

I think the sound only happens when it auto updates

From the main avast window, click “Settings” go to sounds and verify if that the “Enable avast! sounds” option is checked. Also, please notice that there is a sound associated with “automatic update” and I do not believe that it is played when you run the update process manually.