How the Teams voice changer works
Teams has no voice effects of its own - it sends whichever microphone you select. Voices AI Live converts your speech into the selected voice with an AI model on your computer and exposes the result as a virtual microphone, so Teams calls, meetings, webinars, and recordings all carry the new voice.
Because conversion runs locally, your audio is not sent to Voices AI. Teams receives the converted voice exactly as it would receive a headset microphone.

