Two-way audio (talk back) for camera tiles – e.g. DoorBird via go2rtc

**What I’d like ** A “Talk” (push-to-talk or toggle) button in the full-screen camera view, so the screen’s microphone can send audio back to a camera or door station. Combined with the existing live picture and camera sound on P4 screens, this would turn a Tessera screen into a real indoor intercom station.

**Why it seems feasible ** go2rtc already supports two-way audio (backchannel) for many sources, including DoorBird (doorbird:// source, since v1.9.8), RTSP/ONVIF backchannel, Hikvision ISAPI, Tapo, Ring and others. Tessera already plays camera audio in full screen, so the receive path exists. Boards like the Guition JC8012P4A1 (speaker variant), reTerminal D1001 or the Waveshare ESP32-P4 10.1" have a microphone (some with echo cancellation), so the hardware is there.

**Possible approach ** Screen mic → Home Assistant / go2rtc → camera backchannel, ideally reusing the same go2rtc stream the live view already uses. Half-duplex push-to-talk would already be a big step; full duplex with AEC would be the dream.

**My setup ** Guition JC8012P4A1 (10.1", speaker version), Tessera 0.60.0 / ESPHome 2026.9.0 DoorBird D1101V, live view on the Tessera camera tile works great and smoothly Home Assistant OS on a Raspberry Pi 5

Happy to test! Thanks for this great project.