pipecat-ai/pipecat v0.0.70 on GitHub

Added ExotelFrameSerializer to handle telephony calls via Exotel.
Added the option informal to TranslationConfig on Gladia config. Allowing to force informal language forms when available.
Added CartesiaSTTService which is a websocket based implementation to transcribe audio. Added a foundational example in 13f-cartesia-transcription.py
Added an websocket example, showing how to use the new Pipecat client WebsocketTransport to connect with Pipecat FastAPIWebsocketTransport or WebsocketServerTransport.
Added language support to RimeHttpTTSService. Extended languages to include German and French for both RimeTTSService and RimeHttpTTSService.

Upgraded daily-python to 0.19.2.
Make PipelineTask.add_observer() synchronous. This allows callers to call it before doing the work of running the PipelineTask (i.e. without invoking PipelineTask.set_event_loop() first).
Pipecat 0.0.69 forced uvloop event loop on Linux on macOS. Unfortunately, this is causing issue in some systems. So, uvloop is not enabled by default anymore. If you want to use uvloop you can just set the asyncio event policy before starting your agent with:

asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())

Fixed an issue with various TTS services that would cause audio glitches at the start of every bot turn.
Fixed an ElevenLabsTTSService issue where a context warning was printed when pushing a TTSSpeakFrame.
Fixed an AssemblyAISTTService issue that could cause unexpected behavior when yielding empty Frame()s.
Fixed an issue where OutputAudioRawFrame.transport_destination was being reset to None instead of retaining its intended value before sending the audio frame to write_audio_frame.
Fixed a typo in Livekit transport that prevented initialization.