Neocortex
8.0#4 in game voice generatorsFrom €9 a monthFree planAndroidiOSWebAPI
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Neocortex suits developers and creators building conversational characters or interactive experiences for games, VR, education, training, and storytelling. The Free plan is for personal use; Starter also covers academic use, while Pro and Team permit commercial use.
Respeecher may suit creators and production teams needing speech-to-speech voice conversion or text-to-speech. Its Pro Tools plugin is relevant to users working in Avid Pro Tools.