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ElevenLabs plugin for LiveKit Agents

Support for voice synthesis with ElevenLabs.

See https://docs.livekit.io/agents/integrations/tts/elevenlabs/ for more information.

Installation

pip install livekit-plugins-elevenlabs

Pre-requisites

You'll need an API key from ElevenLabs. It can be set as an environment variable: ELEVEN_API_KEY

Realtime speech-to-text audio chunks

Configure the outgoing audio chunk duration when creating the STT instance:

from livekit.plugins import elevenlabs

stt = elevenlabs.STT(
    model="scribe_v2_realtime",
    audio_chunk_duration_ms=100,
)

audio_chunk_duration_ms accepts a positive integer in milliseconds and defaults to 50. At 100 ms, continuous audio produces approximately 10 audio messages per second instead of 20, at the cost of up to 50 ms additional buffering. Larger chunks do not pace reconnect backlogs or guarantee that provider queue errors are avoided. Flushes send any remaining partial chunk before the commit.

This option applies only to realtime STT and is set at construction time.

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