What Is a Synthetic Voice?

A synthetic voice is a computer-generated voice created with text-to-speech or voice-cloning technology rather than recorded from a live speaker. Modern neural systems produce speech with natural intonation and emotion, allowing a voice to be generated on demand, in many languages, and, with consent, modelled on a specific real person.

Synthetic Voice in Practice

The most familiar synthetic voices belong to platforms: Apple’s Siri, whose original American voice grew from recordings made by voice actor Susan Bennett, and Amazon’s Alexa now speak for their brands billions of times a day. Neural text-to-speech from companies such as ElevenLabs has since made near-human cloning widely accessible, and brands are commissioning bespoke synthetic voices for assistants, IVR lines and localised campaigns. The opportunities come with obligations: cloning requires the speaker’s informed consent and fair compensation, and audiences increasingly expect disclosure when a voice is not human. Treated carefully, a synthetic voice becomes a scalable brand asset; treated carelessly, it becomes a trust problem.