pipecat/changelog/3804.changed.md

• Audio context management (previously in AudioContextTTSService) is now built into TTSService. All WebSocket providers (cartesia, elevenlabs, asyncai, inworld, rime, gradium, resembleai) now inherit from WebsocketTTSService directly. Word-timestamp baseline is set automatically on the first audio chunk of each context instead of requiring each provider to call start_word_timestamps() in their receive loop.