Satellite Profile

Goals

• Transport-agnostic remote voice satellite
• Works with wake-word, VAD, ASR, and TTS flows
• Keeps framing and audio payload model minimal

Bootstrap

1. Satellite connects to server.
2. Satellite sends describe.
3. Server replies with ready.
4. Satellite sends satellite.hello metadata.

satellite.hello:

1
{
2
  "type": "satellite.hello",
3
  "name": "kitchen-mic",
4
  "sample_rate": 16000,
5
  "channels": 1,
6
  "format": "s16le",
7
  "wake": true,
8
  "vad": true,
9
  "asr": true,
10
  "tts": true
11
}

State Reporting

1
{ "type": "satellite.state", "state": "idle" }

Recommended states: idle, listening, streaming, speaking, error.

Wake and VAD Events

1
{ "type": "wake.detected", "name": "ok_nabu" }
2
{ "type": "wake.reset" }
3
{ "type": "vad.start" }
4
{ "type": "vad.stop" }

Audio Direction

• Microphone audio: satellite -> server
• TTS audio: server -> satellite

Audio format follows ready.