Best Practices for Building AI Voice Interfaces in Products

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Voice is becoming a default way for users to interact with products, offering reduced cognitive load, hands-free use, and accessibility benefits for visually impaired users. Designing a good voice experience requires attention to personas, context, tone, and conversational flows, not just adding a text-to-speech engine. The article highlights criteria for choosing a TTS engine, such as naturalness, latency, customization, and API simplicity, and points to ElevenLabs as one example, including its streaming and voice cloning features. It also stresses ethical responsibilities around voice cloning, including consent, data minimization, bias mitigation, and security, and includes sample code for integrating the API.

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