Learn voice user interface design online - AI tools

VUIchallenge offers a free, 100-day email course with daily exercises to help users learn and practice Voice User Interface (VUI) design.
- Free

Voice Design AI is a sophisticated text-to-speech platform that uses artificial intelligence to create natural-sounding, expressive voices for various applications, supporting multiple languages and real-time processing.
- Freemium
- From 30$

Open Voice OS is an open-source voice AI platform that enables developers to create custom voice-controlled interfaces with NLP capabilities, focusing on privacy, security, and multi-platform compatibility.
- Free
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