services(elevenlabs): add elevenlabs package and use streaming

examples/foundational/05-sync-speech-and-image.py

@@ -89,7 +89,6 @@ async def main():
         )
 
         tts = ElevenLabsTTSService(
-            aiohttp_session=session,
             api_key=os.getenv("ELEVENLABS_API_KEY"),
             voice_id=os.getenv("ELEVENLABS_VOICE_ID"),
         )

examples/foundational/05a-local-sync-speech-and-image.py

@@ -85,7 +85,6 @@ async def main():
                 model="gpt-4o")
 
             tts = ElevenLabsTTSService(
-                aiohttp_session=session,
                 api_key=os.getenv("ELEVENLABS_API_KEY"),
                 voice_id=os.getenv("ELEVENLABS_VOICE_ID"))
 

examples/foundational/06a-image-sync.py

@@ -79,7 +79,6 @@ async def main():
         )
 
         tts = ElevenLabsTTSService(
-            aiohttp_session=session,
             api_key=os.getenv("ELEVENLABS_API_KEY"),
             voice_id=os.getenv("ELEVENLABS_VOICE_ID"),
         )

examples/foundational/07b-interruptible-langchain.py

@@ -18,7 +18,6 @@ from pipecat.processors.aggregators.llm_response import (
     LLMAssistantResponseAggregator, LLMUserResponseAggregator)
 from pipecat.processors.frameworks.langchain import LangchainProcessor
 from pipecat.services.cartesia import CartesiaTTSService
-from pipecat.services.elevenlabs import ElevenLabsTTSService
 from pipecat.transports.services.daily import DailyParams, DailyTransport
 from pipecat.vad.silero import SileroVADAnalyzer
 

examples/foundational/11-sound-effects.py

@@ -104,7 +104,6 @@ async def main():
             model="gpt-4o")
 
         tts = ElevenLabsTTSService(
-            aiohttp_session=session,
             api_key=os.getenv("ELEVENLABS_API_KEY"),
             voice_id="ErXwobaYiN019PkySvjV",
         )