espeak-ng/espeak-ngGitHub
calls soprano “choose it for a Python neural TTS with modern high-quality voices and a permissive license.”
eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.
6.8kCactive
ekwek1/soprano Alternatives
soprano is queued for analysis. Crawling candidates and ranking them takes a few minutes. This page updates itself when the list exists — you can also come back later.
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These projects were analysed and named soprano among their alternatives. The relationship is not symmetric — how soprano rates them is a separate judgement, made when soprano is analysed in its own right.