pip install livekit-agents livekit-plugins-openai livekit-plugins-silero python-dotenv

LIVEKIT_URL=""
LIVEKIT_API_KEY=""
LIVEKIT_API_SECRET=""
OPENAI_API_KEY=""

import asyncio
from dotenv import load_dotenv
from livekit.agents import AutoSubscribe, JobContext,WorkerOptions, cli, llm
from livekit.agents.voice_assistant import VoiceAssistant
from livekit.plugins import openai, silero


load_dotenv()

async def entry(ctx: JobContext):
    chat_ctx = llm.ChatContext().append(
        role="system",
        text=("你是專業的助理，回答時候用專業的語氣回應。")
    )

    await ctx.connect(auto_subscribe=AutoSubscribe.AUDIO_ONLY)

    asssitant = VoiceAssistant(
        vad=silero.VAD.load(),
        stt=openai.STT(),
        tts=openai.TTS(voice="nova"),
        llm=openai.LLM(model="gpt-4o-mini"),
        chat_ctx=chat_ctx
    )
    asssitant.start(ctx.room)

    await asyncio.sleep(1)
    await asssitant.say("你好，第一次見面，很高興認識你",allow_interruptions=True)


if __name__ == "__main__":
    cli.run_app(WorkerOptions(entrypoint_fnc=entry))