Can work with double sound but not parallel sound

examples/foundational/32-double-room.py

@@ -0,0 +1,156 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+
+import asyncio
+import math
+import os
+import random
+import sys
+
+import aiohttp
+from dotenv import load_dotenv
+from loguru import logger
+from runner import configure
+
+from pipecat.frames.frames import BotSpeakingFrame, EndFrame, Frame, TextFrame, TTSSpeakFrame
+from pipecat.observers.base_observer import BaseObserver
+from pipecat.pipeline.parallel_pipeline import ParallelPipeline
+from pipecat.pipeline.pipeline import Pipeline
+from pipecat.pipeline.runner import PipelineRunner
+from pipecat.pipeline.task import PipelineParams, PipelineTask
+from pipecat.processors.filters.function_filter import FunctionFilter
+from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
+from pipecat.services.cartesia import CartesiaTTSService
+from pipecat.transports.services.daily import DailyOutputTransport, DailyParams, DailyTransport
+
+load_dotenv(override=True)
+
+logger.remove(0)
+logger.add(sys.stderr, level="DEBUG")
+
+
+class DebugObserver(BaseObserver):
+    """Observer to log interruptions and bot speaking events to the console.
+
+    Logs all frame instances of:
+    - StartInterruptionFrame
+    - BotStartedSpeakingFrame
+    - BotStoppedSpeakingFrame
+
+    This allows you to see the frame flow from processor to processor through the pipeline for these frames.
+    Log format: [EVENT TYPE]: [source processor] → [destination processor] at [timestamp]s
+    """
+
+    async def on_push_frame(
+        self,
+        src: FrameProcessor,
+        dst: FrameProcessor,
+        frame: Frame,
+        direction: FrameDirection,
+        timestamp: int,
+    ):
+        arrow = "→" if direction == FrameDirection.DOWNSTREAM else "←"
+        # Convert timestamp to seconds for readability
+        time_sec = timestamp / 1_000_000_000
+
+        if isinstance(frame, BotSpeakingFrame):
+            return
+
+        if isinstance(dst, DailyOutputTransport):
+            logger.debug(f"{frame} {src} {arrow} {dst} at {time_sec:.2f}s")
+
+
+async def main():
+    async with aiohttp.ClientSession() as session:
+        (room_url, _) = await configure(session)
+
+        transport1 = DailyTransport(
+            "https://hush.daily.co/sip",
+            None,
+            "Don't Do Anything",
+            DailyParams(audio_out_enabled=True),
+        )
+
+        transport2 = DailyTransport(
+            "https://hush.daily.co/demo",
+            None,
+            "Summarize Call",
+            DailyParams(audio_out_enabled=True),
+        )
+
+        tts = CartesiaTTSService(
+            api_key=os.getenv("CARTESIA_API_KEY"),
+            voice_id="79a125e8-cd45-4c13-8a67-188112f4dd22",  # British Lady
+        )
+
+        runner = PipelineRunner()
+
+        async def true_filter(frame) -> bool:
+            return True
+
+        async def false_filter(frame) -> bool:
+            return False
+
+        pipeline = Pipeline(
+            [
+                transport1.input(),
+                transport2.input(),
+                ParallelPipeline(
+                    [transport1.output()],
+                    [tts, transport2.output()],
+                ),
+            ]
+        )
+
+        task = PipelineTask(
+            pipeline,
+            PipelineParams(
+                allow_interruptions=True,
+                enable_metrics=True,
+                enable_usage_metrics=True,
+                report_only_initial_ttfb=True,
+                observers=[DebugObserver()],
+            ),
+        )
+
+        # Register an event handler so we can play the audio when the
+        # participant joins.
+        @transport1.event_handler("on_first_participant_joined")
+        async def on_first_participant_joined(transport, participant):
+            participant_name = participant.get("info", {}).get("userName", "")
+            logger.info(f"-- {participant_name} joined transport1")
+
+        def get_call_summary():
+            """In a real app this would be a call to a database or API."""
+            # Randomly choose between two options
+            message = random.choice(
+                [
+                    "Alice needs help finding her customer record.",
+                    "Bob is calling about his lost password.",
+                ]
+            )
+
+            return message
+
+        @transport2.event_handler("on_first_participant_joined")
+        async def on_first_participant_joined(transport, participant):
+            participant_name = participant.get("info", {}).get("userName", "")
+            logger.info(f"-- {participant_name} joined transport2")
+            call_summary = get_call_summary()
+            await task.queue_frames(
+                [
+                    TTSSpeakFrame(
+                        f"Hi {participant_name}! Here's the summary of the call: {call_summary}"
+                    ),
+                    EndFrame(),
+                ]
+            )
+
+        await runner.run(task)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())