Vocode Files

Optimizations: - Refactors StreamingConversation as a pipeline of consumer-producer workers - now transcription / agent response / synthesis are decoupled into their own async processes. Shoutout to @jnak for helping us out with the refactor. Upshots: - The LLM call no longer blocks the processing of new transcripts - Playing the output audio runs concurrently with both generating the responses and synthesizing audio, so while each sentence is being played, the next response is being generated and synthesized - for synthesizer with latencies > 1s, there is no longer a delay between each sentence of a response. - Resource management: synthesizers no longer need a dedicated thread, so e.g. a single telephony server can now support double the number of concurrent phone calls

Contribution / Code cleanliness: - Simple tests that assert StreamingConversation works across all supported Python versions: run this locally with make test - Typechecking with mypy: run this locally with make typecheck

Features: - ElevenLabs optimize_streaming_latency parameter - Adds the Twilio to and from numbers to the CallConfig in the ConfigManager (h/t @Nikhil-Kulkarni) - AssemblyAI buffering (solves https://github.com/vocodedev/vocode-react-sdk/issues/6) (h/t @m-ods) - Option to record Twilio calls (h/t @shahafabileah) - Adds mute_during_speech parameter to Transcribers as a solution to speaker feedback into microphone: see note in https://github.com/vocodedev/vocode-python/issues/16