# # Copyright (c) 2024–2025, Daily # # SPDX-License-Identifier: BSD 2-Clause License # import argparse import os import aiohttp from dotenv import load_dotenv from loguru import logger from pipecat.frames.frames import EndFrame, TTSSpeakFrame from pipecat.pipeline.pipeline import Pipeline from pipecat.pipeline.runner import PipelineRunner from pipecat.pipeline.task import PipelineTask from pipecat.services.piper.tts import PiperTTSService from pipecat.transports.base_transport import TransportParams from pipecat.transports.network.small_webrtc import SmallWebRTCTransport from pipecat.transports.network.webrtc_connection import SmallWebRTCConnection load_dotenv(override=True) async def run_bot(webrtc_connection: SmallWebRTCConnection, _: argparse.Namespace): logger.info(f"Starting bot") # Create a transport using the WebRTC connection transport = SmallWebRTCTransport( webrtc_connection=webrtc_connection, params=TransportParams( audio_out_enabled=True, ), ) # Create an HTTP session async with aiohttp.ClientSession() as session: tts = PiperTTSService( base_url=os.getenv("PIPER_BASE_URL"), aiohttp_session=session, sample_rate=24000 ) task = PipelineTask(Pipeline([tts, transport.output()])) # Register an event handler so we can play the audio when the client joins @transport.event_handler("on_client_connected") async def on_client_connected(transport, client): await task.queue_frames([TTSSpeakFrame(f"Hello there!"), EndFrame()]) runner = PipelineRunner(handle_sigint=False) await runner.run(task) if __name__ == "__main__": from run import main main()