Naturalness validator
The validator that scores how human the speech sounds — and retries what falls short.
Family: Operator · type: validator_naturalness
The Naturalness validator answers: does it sound human? It scores the delivery of each generated line on a 0–100 scale, where higher is more natural. Lines below the bar are retried; lines at or above it pass.
New to validators? Start with how validators work — the pass/fail routing and retry behavior here are shared by all three.
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Related
- Validators — pass/fail and retry, shared behavior
- Accuracy validator — did the audio say the words?
- Noise validator — is it clean?

