natural voice

.env.example

@@ -25,6 +25,21 @@ CDN_DIR=./cdn
 OCR_LANG=eng
 OCR_MAX_CHARS=100000
 
+# --- platform tools: neural TTS (first configured wins, TTS_PROVIDER forces one) ---
+# ElevenLabs (most natural): https://elevenlabs.io/app/settings/api-keys
+#ELEVENLABS_API_KEY=
+#ELEVENLABS_VOICE=
+# OpenAI (reuses the LLM key when set, tts-1 + alloy/echo/fable/onyx/nova/shimmer)
+#OPENAI_API_KEY=
+#TTS_VOICE=alloy
+# Local piper (offline, like tesseract): PIPER_BIN + onnx model
+#PIPER_BIN=piper
+#PIPER_MODEL=/var/lib/kisassistant/piper/en_US-lessac-medium.onnx
+# Test/development overrides (base URLs, default = api.elevenlabs.io / api.openai.com)
+#ELEVENLABS_BASE_URL=
+#OPENAI_BASE_URL=
+#TTS_PROVIDER=auto
+
 # Per-driver debug logging to stdout ([driver:name] lines).
 DRIVER_DEBUG=true