This is a voice pack for DBM by Elarinti. It is an English Female voice.
Ensure this pack is in your addons folder of the game. Do not change the name of the folder. To enable this voice pack:
/dbm Go to Options tab - General Options - Spoken Alerts. Then in the 'Voice Selections' at the top the forth pull down says 'Set voice pack for spoken alerts' and if you pull it down you can select this voice pack.