ItoTTS: two natural English voices in 4.89 MB for a $5 ESP32-S3

The Lokutor team, following the positive reception of Oído, has introduced ItoTTS, a streaming Text-to-Speech engine designed for the ESP32-S3. ItoTTS offers two natural English voices with 24 kHz audio quality, requiring only 4.89 MB of weights per voice. This innovation aims to provide local LLMs with a voice using an affordable $5 chip, building on the team's previous success and community engagement.

This report details a new TTS engine that delivers two natural English voices in a compact 4.89 MB, unlike previous solutions that required more resources.