If you've not already encountered them I'd definitely encourage you to check out these Free/Open Source projects too: * Larynx: https://github.com/rhasspy/lar

If you've not already encountered them I'd definitely encourage you to check out these Free/Open Source projects too: * Larynx: https://github.com/rhasspy/larynx/ https://github.com/rhasspy/larynx/ * OpenTTS: https://github.com/synesthesiam/opentts https://github.com/synesthesiam/opentts * Likely Mimic3 in the near future: https://mycroft.ai/blog/mimic-3-preview/ https://mycroft.ai/blog/mimic-3-preview/ Larynx in particular has a focus on "faster than real-time" while OpenTTS is an attempt to package & provide common REST API to all Free/Open Source Text To Speech systems so the FLOSS ecosystem can build on previous work supported by short-lived business interests, rather than start from scratch every time. AIUI the developer of the first two projects now works for Mycroft AI & is involved in the development of Mimic3 which seems very promising given how much of an impact on quality his solo work has had in just the past couple of years or so.