SonexLabs plugin for LiveKit Agents
Support for real-time voice synthesis with SonexLabs' Panini TTS engine in LiveKit Agents.
See docs.sonexlabs.com for full API reference.
Installation
pip install livekit-plugins-sonex
Pre-requisites
You'll need an API key from SonexLabs. It can be set as an environment variable:
export SONEX_API_KEY=vsk_xxxxxxxxx
Usage
from livekit.agents import AgentSession
from livekit.plugins import sonex
session = AgentSession(
tts=sonex.TTS(
voice_id="YOUR_VOICE_ID",
),
# ... llm, stt, vad, turn_handling, etc.
)
Or pass the API key directly instead of using the environment variable:
tts = sonex.TTS(
api_key="vsk_xxxxxxxxx",
voice_id="YOUR_VOICE_ID",
)
Streaming and connection reuse
Synthesis requests are sent to SonexLabs' /v1/speech/stream endpoint, so audio is delivered as chunked HTTP as soon as it's generated rather than after the full utterance completes, reducing time-to-first-audio. When no explicit http_session is supplied, the plugin uses LiveKit Agents' shared, process-wide aiohttp.ClientSession, so connections are pooled and reused across requests instead of being re-established on every call.
Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
api_key |
str |
— | SonexLabs API key. Falls back to SONEX_API_KEY if not set. |
voice_id |
str |
— | Required. Voice ID from GET /v1/voices. |
language |
str |
auto-detect | Language code (e.g. en, hi). Leave unset to auto-detect. |
speed |
float |
1.0 |
Speech rate multiplier. |
sample_rate |
int |
24000 |
Output sample rate in Hz. Not sent to the API — Panini always returns audio at its native rate; this value is used for LiveKit-side reporting only. |
base_url |
str |
https://api.sonexlabs.com |
SonexLabs API base URL. |
http_session |
aiohttp.ClientSession |
shared session | Optional existing session to reuse. |
Requirements
- Python >= 3.10
- livekit-agents >= 1.6.7
Local development
git clone https://github.com/sonexlabs/livekit-plugins-sonex.git
cd livekit-plugins-sonex
pip install -e .
License
Apache-2.0 — see LICENSE.
Release files for livekit-plugins-sonex 0.2.1
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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|---|---|---|---|---|
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Total release size: 21.7 kB
Release files / livekit_plugins_sonex-0.2.1.tar.gz
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Release files / livekit_plugins_sonex-0.2.1-py3-none-any.whl
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