aic_bot.py

import os

from loguru import logger

from pipecat.audio.filters.aic_filter import AICFilter
from pipecat.frames.frames import Frame, InputAudioRawFrame, OutputAudioRawFrame
from pipecat.pipeline.pipeline import Pipeline
from pipecat.pipeline.runner import PipelineRunner
from pipecat.pipeline.task import PipelineParams, PipelineTask
from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
from pipecat.runner.types import RunnerArguments
from pipecat.runner.utils import create_transport
from pipecat.transports.base_transport import BaseTransport, TransportParams


# loopback processor
class AudioFrameConverter(FrameProcessor):
    async def process_frame(self, frame: Frame, direction: FrameDirection):
        await super().process_frame(frame, direction)

        if isinstance(frame, InputAudioRawFrame):
            output_frame = OutputAudioRawFrame(
                audio=frame.audio,
                sample_rate=frame.sample_rate,
                num_channels=frame.num_channels,
            )
            await self.push_frame(output_frame, direction)
        else:
            await self.push_frame(frame, direction)


# bot logic
async def run_bot(transport: BaseTransport, runner_args: RunnerArguments):
    logger.info("Bot starting: Direct Audio Loopback with AIC Filter")

    converter = AudioFrameConverter()
    pipeline = Pipeline(
        [
            transport.input(),
            converter,
            transport.output(),
        ]
    )
    task = PipelineTask(
        pipeline,
        params=PipelineParams(),
    )

    @transport.event_handler("on_client_connected")
    async def on_client_connected(transport, client):
        logger.info("WebRTC Client Connected")

    @transport.event_handler("on_client_disconnected")
    async def on_client_disconnected(transport, client):
        logger.info("WebRTC Client Disconnected")
        await task.cancel()

    runner = PipelineRunner(handle_sigint=runner_args.handle_sigint)
    await runner.run(task)


async def bot(runner_args: RunnerArguments):
    # initialize aic filter
    aic_filter = AICFilter(
        license_key=os.getenv("AICOUSTICS_LICENSE_KEY", ""),
        model_id="quail-vf-l-16khz",  # or "quail-vf-l-16khz", "sparrow-xxs-48khz"
    )
    transport_params = {
        "webrtc": lambda: TransportParams(
            audio_in_enabled=True,
            audio_out_enabled=True,
            audio_in_filter=aic_filter,
        )
    }
    transport = await create_transport(runner_args, transport_params)
    await run_bot(transport, runner_args)


if __name__ == "__main__":
    from pipecat.runner.run import main

    main()