Can Pete talk, and can I talk to him?

In Pete's window, the speaker button in the header turns Voice on; he then reads answers aloud with captions, and the microphone next to the text box lets you ask by speaking (your phone or browser will ask for microphone permission once). Voice is off by default and nothing plays on its own. Mute and Stop appear in the header while he is speaking. The voice you hear today is your device's own voice; Pete's own voice is being evaluated.