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obsidian-vault/300 areas/360 Dev-Ops Network Computers/Home Voice Assistant System.md

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2026-08-30 2026-08-30 note
voice
system
ai
Jervis
Voice Assistant

Home Voice Assistant System (Jervis)

Source of truth: Gitea repo sam/voice-assistant → https://gitea.lab.audasmedia.com.au/sam/voice-assistant Docs: docs/overview.md, docs/agent-api.md, docs/clients.md (in that repo).

TL;DR

Local, private voice assistant. "Hey Jervis" → natural language → one LLM brain (voice-agent on .13:8501) decides intent → calls tools (time/weather/shopping/HA control/reminders/character voices) → speaks via piper → Snapcast.

Command it from anywhere: POST http://192.168.20.13:8501/voice {"text":"add milk to the shopping list"} (reply is spoken).

Components (host:port)

Component Host Port Role
ESP32-S3 (wake word) — — mic, LED
voice_bridge / voice_whisper .13 docker/:5000 STT
voice-agent (LLM brain) .13 :8501 tool-calling
OmniRoute .13 :20129 LLM gateway
piper_tts .13 :10200 TTS
Snapcast .13 :1780 audio
Home Assistant .30 :8123 control
KitchenOwl .35 owl.lab shopping
mosquitto .13/.30 :1883 MQTT

See the repo docs/overview.md for the full diagram + docs/agent-api.md for the API contract + docs/clients.md for type/web/Android.

Status (2026-08-30)

  • Voice-over-Snapcast restored (piper docker + HA→.13 SSH auth fixed).
  • Agent persistent as NixOS systemd service; tools verified: time, weather, shopping (KitchenOwl), HA control, reminders, feed-fish, character voices (Trump etc.).
  • Next: play_music (Mopidy), calendar (N8N), Apprise messaging (sam/jo/harry/finn), extended TTS voices.

See also: Docker Containers, Home Network Map Overview.