Understanding speech beyond words.
Industry-grade speech intelligence: emotion recognition, behavioral analysis, and audio deepfake detection. Deploy via API or customize in AI Labs.
01The Behavioral Signals API
One API for emotion, behavior and voice authenticity.
Send audio, get signals per utterance, each with its probability: emotion, positivity, arousal, speaking rate, hesitation, engagement, speaker attributes and voice-deepfake detection. Cloud, on-premises or edge. Built for developers who want the engine itself, not a packaged app.
A transcript captures the words. Our models also analyze vocal delivery to estimate emotional expression and conversational behavior. The API makes these predictions available to your own software, without requiring you to develop the underlying models. Your team controls how the results are combined with other information, presented and used.
02Deepfake speech detection
Detect signs of AI-generated speech.
Most detectors listen for artifacts in the signal. Ours also listens to behavior — emotion, speaking style, the shape of a conversation — a broader signal base than acoustic artifacts alone. Language-agnostic, and fast enough for a live call rather than a post-mortem recording.
Live in production · deepfakes.behavioralsignals.com
Recordings inbound_transfer_request.wav
5 August 2026
| Name | Gender | Age | Total |
|---|---|---|---|
| Speaker 1 | Male | 18 – 22 | 100% |
- Deepfakes Score:
- 29.5%
- Model Version:
- 7.7.0
- Duration:
- 00:00:26
-
Speaker 1 0:00 – 0:13 Bonafide 100.0%
So the transfer was authorised on Tuesday, and the reference should already be on file with your team.
-
Speaker 1 0:14 – 0:21 Deepfake 100.0%
I need you to move the balance to the account I sent through earlier this morning.
-
Speaker 1 0:22 – 0:26 Bonafide 100.0%
Let me know once it clears and I will confirm with the desk.
Combines acoustic and behavioral cues
Signal-level artifact cues are combined with prosody, speaking style and emotion — a broader signal base than acoustic artifacts alone.
Language-agnostic
No per-language model to train or maintain. Detection works on speech it has never heard the language of.
Real time, at enterprise scale
Fast enough to run on a live call rather than a post-mortem recording.
Deepfake Detective — Audio Edition
Think you can hear the difference?
Our public game plays you real and AI-generated voices across six levels. Most people do worse than they expect, which is the point.
03PAIR Conversations
Match the customer to the right agent, on every call.
Two people can have the same conversation and reach opposite outcomes. PAIR profiles both sides across a rich behavioral taxonomy and routes on compatibility, not queue order.
- Discovery Build detailed behavioral profiles of customers and agents from real conversations.
- Evaluation Score which agent-customer pairings actually produce the outcomes you care about.
- Recommendations Route the next call to the agent with the highest predicted chance of success.
04AI Labs
Custom speech AI models and deployments.
When the general API isn’t enough, our AI Labs team builds domain-specific models on top of the same engine — and delivers them where you need them: cloud, on-premises, edge, in-cabin.
Previous work
- Cognitive impairment detection from speech, including cross-lingual Alzheimer’s dementia detection
- Depression screening on in-the-wild social-media and vlogger audio
- Stress and duress detection for national-security and forensic-audio deployments
- Propensity-to-buy and propensity-to-pay KPIs derived from behavioral signals
- Triage across large collections of audio recordings for downstream review
- Emotional-content analysis for long-form video and film
- Popularity prediction from a speaker’s vocal delivery