Which text-to-speech (TTS) engine performs the TTS playback when using the Google Cloud Dialogflow CX integration in an Architect call flow?
Text-to-speech (TTS) playback depends on the voice you choose in Architect:
- If you choose a Google TTS voice, Google Cloud Dialogflow CX performs the TTS playback.
- If you choose a non-Google TTS voice, Architect receives the raw text-to-speech string and performs the TTS with the selected third-party TTS engine.