Quake III: Team Arena is the official add-on to Quake III: Arena. It adds a lot of multiplayer game types: Harvester, Overload and One Flag, all focused on team play. There is a selection of new power-ups aimed at introducing a class-based structure similar to Team Fortress. Three new weapons are available: a nail gun, a chain gun and a proximity mine launcher. There is also a batch of new levels, and a few graphical and sonic tweaks like the inclusion of Doppler-shift effects when rockets streak past your head. And finally there is a set of one-use items like Kamikaze (kills you in a colossal explosion, taking out anyone unfortunate to be around) and Invulnerability, which freezes you in mid-air and surrounds you with a near-impenetrable shield.
This sound pack for Quake 3 Team Arena contains the female announcer (Daemia) from Quake Live.
Female Voice over from Quake Live ported to Quake 3 Team Arena
To install it, just extract the .zip into your missionpack folder in Quake III Arena directory. It should also work in vanilla Q3, just extract it in baseq3 directory if you want to use it there.
Good Luck and Have Fun!