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VUI Design: Prompts vs. Text to Speech
Text-to-speech is everywhere these days, for example, the iPhone’s Siri, or Amazon’s Echo. Yet, many IVR (interactive voice response) systems still rely on a human voice talent to actually sit down in a studio and read your prompts into a microphone. So, why haven’t more enterprises dumped the human and gone full-on Text-To-Speech in their call center implementations? For a couple of reasons. First, fidelity. Edward Tufte once said that the IVR phone interface is the lowest-