Text-to-Speech (TTS) Engine: Market-leading technology for an enhanced conversational IVR experience

Create a human voice for your brand

Nuance Text-to-Speech (TTS) engine technology creates a rich, engaging and personalised user experience with high-quality audio that can be tailored to any customer self-service application.

It couldn’t be easier

The Nuance solution offers a simple way to establish your brand’s voice and maintain a consistent delivery across multiple channels.

We offer a wide portfolio of voices, multi-lingual support and the ability to create unique, custom voice personas that give you the power to build robust, high-quality self‑service applications that sound so natural and engaging that your callers will always be impressed.

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Text-to-speech engine Vocalizer audio tour

Vocalizer audio tour

Hear the benefits and features of Vocalizer 6 for yourself.

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Text-to-speech Deutsche Bahn case study

Deutsche Bahn case study

Read how Deutsche Bahn used Vocalizer Text-to-Speech technology to enhance the experience for train passengers.

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Why Nuance

Nuance Text-to-Speech expertise has been perfected over 20 years. By pushing ourselves to develop more natural and expressive speech synthesis, we have created technology that can pronounce challenging words better than most humans.

Nuance Text-to-Speech technology powers many of our solutions


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years of Nuance TTS expertise has been used to perfect our text‑to‑speech offering.


languages are ready to support your global business efforts.


unique voices can be delivered for high‑quality text‑to‑speech that matches your brand.

Award-winning professional services

Nuance professional services leverage 20 years of experience and thousands of successful deployments to offer thought leadership and commitment to your results. We use the latest tools and techniques to design, develop, deploy and optimise your speech-enabled IVR applications.

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Learn how Text-to-Speech is built for your business.