96 lines
2.9 KiB
Python
96 lines
2.9 KiB
Python
#
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# Copyright (c) 2024–2025, Daily
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#
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# SPDX-License-Identifier: BSD 2-Clause License
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#
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import asyncio
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import os
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import sys
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from dataclasses import dataclass
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import aiohttp
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from dotenv import load_dotenv
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from loguru import logger
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from runner import configure
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from pipecat.frames.frames import AudioRawFrame, EndFrame, OutputAudioRawFrame, TTSSpeakFrame
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from pipecat.pipeline.pipeline import Pipeline
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from pipecat.pipeline.runner import PipelineRunner
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from pipecat.pipeline.task import PipelineTask
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from pipecat.services.cartesia import CartesiaTTSService
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from pipecat.transports.services.daily import DailyParams, DailyTransport
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load_dotenv(override=True)
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logger.remove(0)
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logger.add(sys.stderr, level="DEBUG")
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@dataclass
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class SilenceFrame(OutputAudioRawFrame):
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def __init__(
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self,
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*,
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sample_rate: int,
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duration: float,
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):
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# Initialize the parent class with the silent frame's data
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super().__init__(
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audio=self.create_silent_audio_frame(sample_rate, 1, duration).audio,
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sample_rate=sample_rate,
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num_channels=1,
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)
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@staticmethod
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def create_silent_audio_frame(
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sample_rate: int, num_channels: int, duration: float
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) -> AudioRawFrame:
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"""Create an AudioRawFrame containing silence."""
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frame_size = num_channels * 2 # 2 bytes per sample for 16-bit audio
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total_frames = int(sample_rate * duration)
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total_bytes = total_frames * frame_size
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silent_audio = bytes(total_bytes) # Create a byte array filled with zeros
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return AudioRawFrame(audio=silent_audio, sample_rate=sample_rate, num_channels=num_channels)
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async def main():
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async with aiohttp.ClientSession() as session:
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(room_url, _) = await configure(session)
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transport = DailyTransport(
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room_url, None, "Say One Thing", DailyParams(audio_out_enabled=True)
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)
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tts = CartesiaTTSService(
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api_key=os.getenv("CARTESIA_API_KEY"),
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voice_id="79a125e8-cd45-4c13-8a67-188112f4dd22", # British Lady
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)
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runner = PipelineRunner()
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task = PipelineTask(Pipeline([tts, transport.output()]))
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# Register an event handler so we can play the audio when we receive a specific message
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@transport.event_handler("on_app_message")
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async def on_app_message(transport, message, sender):
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logger.debug(f"Received app message: {message} - {sender}")
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if "playable" not in message:
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return
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await task.queue_frames(
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[
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SilenceFrame(
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sample_rate=task.params.audio_out_sample_rate,
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duration=0.5,
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),
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TTSSpeakFrame(f"Hello there, how are you doing today ?"),
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EndFrame(),
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]
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)
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await runner.run(task)
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if __name__ == "__main__":
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asyncio.run(main())
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