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Designing the voice library: 240+ voices, one catalog

How we made hundreds of voices feel discoverable, considered, and human from the first listen.

P

Priya Novak

Product designer

7 min read
A Sunesis studio workspace

A useful library does not ask people to know exactly what they are looking for before they begin.

The catalog problem

A large voice library can quickly become a wall of names. Filtering alone does not solve that problem, because people often search by the feeling they want to create, not by a technical attribute.

We began by designing for a first listen: what can someone understand about a voice in five seconds, and what helps them find the next one when it is not quite right?

Making taste visible

We paired practical filters with short, human descriptions of each voice. Tone, pace, and character sit alongside language and accent, so the catalog supports both a precise production brief and an open-ended exploration.

The visual system stays deliberately quiet. A voice preview should feel like the center of attention, not another interface to decode.

A library that learns with you

Saving a voice should make the next session easier. The studio now keeps the choices that matter close, while the wider catalog remains one step away when the work calls for a new direction.

It is a small interaction, but it turns discovery into a continuing part of the creative process.

Keep a good signal close.

New research and product notes from Sunesis, sent occasionally and thoughtfully.

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Designing the voice library: 240+ voices, one catalog | Sunesis Labs