Voice and tone analysis

Hear how
they said it.

Voice interviews analysed for tone, pace, pauses, hesitation and emotion, aligned with the transcript and checked by trained annotators.

“It's fine” can mean yes, no or never again. The voice tells you which.

Voice AI research captures spoken answers in AI-moderated interviews, then adds tone analysis and paralinguistic analysis on top of the transcript, so emotion in interviews becomes something you can count, compare and quote.

What we measure

The part of the answer
that isn't words.

Tone and pitch

Rising doubt, flat resignation, real excitement.

Pace and pauses

The two-second pause before a price. The rush through a painful memory.

Hesitation and fillers

Where people are unsure, even when their words sound certain.

Emotion

Frustration, relief, delight and confusion, marked on the timeline.

Hesitant
Delighted
Upset
P03 · Subscription renewal06:12 → 07:05
Words“Yeah, I'll probably renew. It's fine.”
ToneFalling pitch, low energy
Pauses1.8s before “probably”
EmotionResigned, not satisfied
Churn riskWords and tone disagreeReviewed by annotator

About voice and tone.

What is voice AI research?

Research where people answer by speaking rather than typing, in AI-moderated voice or video interviews, and where the analysis covers how things were said, not only the words.

What is paralinguistic analysis?

Analysis of the parts of speech that are not words: tone, pitch, pace, pauses, emphasis, laughter and hesitation. They often reveal doubt or enthusiasm that the transcript hides.

Why do voice answers beat typed answers?

People say more when they speak, tell stories instead of choosing options, and reveal emotion in their voice. Typed open-ends are shorter and more considered.

Who labels tone and emotion?

Models mark candidate signals across every session, and trained annotators, including linguists when the study needs them, review and label them.

Which languages and accents?

Many languages and regional accents. We confirm recruiting and a sample before scaling a multi-market study.

Do you also sell conversation data for AI training?

That is Cookiy Labs, our sister business, which supplies conversation and speech data to AI labs. Visit Cookiy Labs.

Listen to a hundred customers
by tomorrow.

Free to start. No credit card. Video on this site is licensed stock footage of real people.