[GSoC] Dynamic Text-to-Speech Playback

[danylo-boiko]

Feature description

In the current implementation, playback begins only after the entire text has been processed by the Google Text-to-Speech API, which cause inconvenient delays for long texts. Journey Voices provides real-time streaming with low latency for some common languages (search for "Journey" on the voices page). The goal of the project is to implement a flexible approach that supports both streaming and waiting for a complete response, depending on the language.

Expected outcomes

Users can listen to synthesized text in two modes, depending on language support.