EchoDepth - How It Works
Updated October 2026
From input to Trust Score in 30 seconds. Space to pause · Arrow keys to scrub.
Watch the 56-second explainer
How EchoDepth reads every call, email and review for a set of emotion categories, shows where a conversation turned, and ranks what to change first.
Read the transcript
Every day, your customers tell you exactly how they feel. On calls, in emails, in reviews. Most of it is never heard.
A survey hears from the few who reply, days later, and turns it into a single number.
EchoDepth reads every word. Fifty-three emotions, moment by moment, and how committed people really sound.
So you can see exactly where a conversation turned, and why.
Then it ranks what to change, by expected impact. Decisions, not dashboards.
For marketing, sales, comms and culture. Hosted in the UK. EchoDepth, by Cavefish.
How does EchoDepth work?
You share a video, audio file, transcript, script or image, and EchoDepth analyses how it is delivered: 44 FACS action units per video frame, pitch, pace and hesitation in audio, and linguistic credibility in text. Those signals combine into a 0 to 100 Trust Score and a Credibility Signal timeline that shows where credibility drops, with AI coaching notes on what to change. You can share a link or upload directly, with no wearables, no specialist hardware and no integration work required. In the explainer's example, a CFO earnings call rehearsal scores 73/100, and the timeline shows a drop at 4:22 during forward guidance delivery. A full PDF report is returned within 5 working days as standard, and expedited analysis is available for earnings calls and other time-critical deployments. The PDF report covers the Trust Score, Credibility Signal timeline, key moment identification and AI coaching notes.
Common questions
What does EchoDepth measure?
Communication delivery quality across four modalities: video (44 FACS Action Units per frame), audio (pitch, pace, hesitation), text (linguistic credibility mapping), and images. All modalities combine into the Trust Score and Credibility Signal timeline.
What is the Trust Score in the explainer?
A CFO earnings call rehearsal scores 73/100. The Credibility Signal timeline shows a drop at 4:22 during forward guidance delivery. AI coaching note: Slow delivery pace 15% at line 47. Remove upward inflection on 'expect'.
What inputs does EchoDepth accept?
Video recordings, audio files, text transcripts, scripts, and images. Share a link or upload directly. No wearables, no specialist hardware, no integration work required.
How quickly are results returned?
Standard turnaround is 5 working days for a full PDF report. Expedited analysis available for earnings calls and other time-critical deployments - contact hello@cavefish.ai.