Text-to-Speech modules

mod_google_tts
Google speech-to-text service (full featured, v1-api)
Opensource version and examples | Manual
mod_openai_tts
OpenAI text-to-speech service (full featured, v1-api)
Opensource version and examples | Manual
mod_piper_tts
A fast, local neural text to speech system ( rhasspy/piper )
Opensource version and examples | Manual
mod_yandex_tts
Yandex text-to-speech service (commercial version only)
Manual

Features list

mod_google_tts | mod_openai_tts | mod_piper_tts | mod_yandex_tts

Feature	Opensource
Caching synthese results	+
Configurable voice type	+
Configurable language	+
Flexible HTTP settings (proxy/timeouts/etc...)	+
Source code	+

Feature	Opensource
Caching synthese results	+
Configurable voice type	+
Configurable language	+
Flexible HTTP settings (proxy/timeouts/etc...)	+
Source code	+

Feature	Opensource
Caching synthese results	+
Configurable voice type	+
Configurable language	+
Public models (large collection)	+
Source code	+

Feature	Commercial
Caching synthese results	+
Configurable voice type	+
Configurable language	+
Flexible HTTP settings (proxy/timeouts/etc...)	+
Source code	-
Price	$100