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!