Definition
What is voice cloning?
By Lewis CrookPublished
Voice cloning is the synthesis of a custom voice — typically based on samples from a brand actor, voice talent, or executive — for use as the voice AI's text-to-speech output. It combines voice identity (timbre, accent) with prosody control (pace, intonation, emotion).
Voice cloning is making the AI sound like a specific voice rather than a stock one.
Why it matters for enterprise CX leaders
- Brand consistency arguments often favour cloning; CX research shows callers care far less than brand teams expect.
- Voice cloning carries explicit-consent obligations for the voice talent and IP licensing terms that must outlast the engagement.
- Synthetic-voice attacks are a known threat — cloning programmes should include a documented anti-impersonation policy.
Frequently asked questions
- Does voice cloning meaningfully improve CSAT?
- Rarely. Stock high-quality voices score within margin of error in most controlled tests; cloning is usually a brand decision rather than a CX one.
- What consent is required for voice cloning?
- Explicit, written, scoped consent from the voice talent — including allowable contexts and duration of use. UK/EU contexts often add biometric-data treatment under GDPR.
- Can voice cloning be misused?
- Yes — voice cloning is the supply side of synthetic-voice fraud. Enterprise programmes should pair cloning with anti-impersonation controls and clear internal use boundaries.
Related terms
- Voice biometrics— Voice biometrics confirms who the caller is by how they speak.
- Voice AI— Voice AI is software that answers the phone, understands what the caller wants, and takes action — not just a smarter IVR.
- Real-time transcription— Real-time transcription is streaming speech-to-text fast enough to act on mid-call.
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