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Vakyam AI plugin for LiveKit Agents

Support for voice synthesis with Vakyam AI Raaga 1 — text-to-speech for Indian languages.

See https://docs.vakyam.ai/integrations/livekit for provider docs.

Installation

pip install livekit-plugins-vakyam

Or with the LiveKit Agents extra:

uv add "livekit-agents[vakyam]"

Pre-requisites

You'll need an API key from Vakyam. Set it as an environment variable:

export VAKYAM_API_KEY="vak_live_..."

Usage

from livekit.agents import AgentSession
from livekit.plugins import vakyam

session = AgentSession(
    tts=vakyam.TTS(
        model="raaga-v1",
        voice="Archana",
        language="ta-IN",
        sample_rate=24000,
    ),
    # ... stt, llm, vad
)

stream() uses the realtime WebSocket API and sentence-tokenizes LLM text so each utterance is one complete sentence (Vakyam does not accept partial tokens). synthesize() uses HTTP streaming (POST /v1/tts/stream) and returns PCM audio.

WebSocket connections are pooled and reused between sequential agent turns. Each active synthesis stream has exclusive ownership of its connection, so an overlapping stream uses a separate connection. On interruption, the plugin sends cancel, drains through Vakyam's cancellation acknowledgement, and returns the healthy connection to the pool.

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