Why existing tools miss the most important signal

Analyses words. Flags 'negative', 'positive' or 'neutral' language.

Cannot read tone, delivery, facial expression or vocal hesitation. A speaker can deliver 'we are confident in our outlook' with every stress marker of deception — sentiment tools give it a positive score.

Reads the person, not the text. 44 FACS Action Units from video. Vocal pattern analysis from audio. Structural hesitation from text transcripts. A complete signal, not a word count.

Text analysis tools are useful for volume monitoring. They cannot tell you whether an individual speaker is believed.

Asks people what they think or feel. Records self-reported responses.

Participants perform for the group. Social desirability bias distorts every response. What people say they feel and what they actually feel diverge — consistently and measurably.

Records involuntary physiological signals — the 44 muscle movements that cannot be consciously controlled. You get the real response, not the performed one.

Focus groups surface stated preferences. EchoDepth surfaces actual emotional engagement. The two often disagree — and the disagreement is the most valuable insight.

Coaches speakers on what to say, how to stand, and general presentation technique.

Qualitative feedback is subjective. There is no objective baseline and no measurable outcome. The coach's opinion is not auditable. Training outcomes cannot be proven.

Generates a pre-training and post-training Trust Score, Credibility Signal and Confidence Score. Improvement is quantified. The coaching outcome is auditable and reportable.

Media training and EchoDepth are complementary. Training provides the method; EchoDepth provides the measurement. Together they produce a provable outcome.

Measures skin conductance, blood pressure and respiration. Attempts to detect deception.

The National Academy of Sciences found no scientific consensus on polygraph accuracy. False negative rates up to 47% in controlled studies. Inadmissible in UK courts. Highly invasive.

Measures facial Action Units and vocal patterns using the FACS standard — the most scientifically validated emotional measurement framework available. Non-invasive. No contact. Scientifically defensible.

EchoDepth does not claim to detect lies. It measures the involuntary physiological markers that accompany stress, cognitive load and emotional state change — and produces a timestamped, auditable output.

Trained observers watch recordings and make qualitative judgements about behaviour.

Observer judgement is inconsistent, non-reproducible and uncalibrated for cultural variation. No two observers produce the same result. No audit trail. Cannot scale.

44 Action Units per frame. Same measurement every time. Calibrated across 14 cultural cohorts. Fully auditable output. Scales to any volume without degradation in consistency.

EchoDepth augments human observers — it provides the baseline data that makes human judgement more consistent and defensible.