AMPLIFIER FOR ZOOM
Amplifier listens to the calls your executives are already on and turns voice into an early warning system for fatigue, strain, and burnout, weeks before a self-assessment would ever catch it.
// live vocal signal, zero extra minutes on the calendar
The problem
Executives are trained to project control. That is exactly why burnout at the top goes undetected until it costs you a resignation, a bad decision, or a health event.
Why measurement fails today
The World Health Organization classifies burnout in the ICD-11 as an occupational phenomenon, not a medical condition, resulting from chronic workplace stress that has not been successfully managed.7 It has a real, validated structure. The tools to measure it have existed for decades.
The problem has never been the science. It is the format. Every validated instrument depends on someone stopping, remembering how they have felt, and filling out a form, honestly, on a schedule nobody enforces. Executives are the population least likely to do that.
The science
Speech is a motor task controlled by the same nervous system that governs stress and recovery. Decades of acoustic research link measurable, involuntary changes in voice to fatigue, cognitive load, and chronic stress.
Acute stress and cognitive load tend to raise pitch and intensity, while chronic fatigue flattens pitch range into a more monotone delivery. A systematic review of 39 studies found prosodic features showed the strongest link to stress, negative emotion, and cognitive load of any acoustic signal measured.11
Cycle-to-cycle instability in pitch and amplitude rises measurably after sleep deprivation, alongside a softer, lower-intensity voice, in controlled acoustic studies.12
Pause length and speech timing are central inputs to published voice-based fatigue detection models, with one study reporting up to 94% accuracy from acoustic signal alone.13
Reduced loudness and breath support track with low arousal and depleted energy, documented directly in sleep-deprivation research on vocal parameters.12
Harmonics-to-noise ratio and other spectral measures shift under physiological strain, features already used in voice-based stress and cognitive load models.11
No voice sounds "burned out" in isolation. The signal is a trend against a person's own established pattern, call after call.
A preregistered University of Verona study is testing this exact pipeline: scoring pitch, jitter, shimmer, and spectral features extracted from short speech samples against the clinically validated Oldenburg Burnout Inventory, across seven time points over a 31-day period, in students and working employees.14
Why Zoom
Executives do not need a new habit to build. They need the hours they already spend on video to start working for them.
Zoom fatigue is real, and well documented
Researchers at Stanford's Virtual Human Interaction Lab identified four specific drivers of video-call fatigue: excessive close-up eye contact, the cognitive load of exaggerating gestures for the camera, constant self-view, and reduced physical mobility.15 The same team then built and validated the Zoom Exhaustion & Fatigue Scale, a 15-item instrument tested on 2,724 people, to actually measure it.16
That research proved video calls carry a unique fatigue signature. Amplifier is the layer that reads it directly from the one channel every call already produces: audio.
Already a normal part of the call
Call recording, AI note-taking, and transcript generation are now standard features on most executive calendars, Otter.ai alone has transcribed more than a billion meetings.17 Amplifier extends that same, already-accepted audio pipeline into a wellness signal, with no new consent friction and no new tool to adopt.
How it works
An executive or their team adds Amplifier from the Zoom App Marketplace in under a minute. No hardware, no new device, no change to how calls are run.
Amplifier runs in the background during scheduled calls, extracting vocal features in real time. Nothing about the meeting experience changes.
A private dashboard shows energy, strain, and recovery trends over time, surfacing a meaningful shift long before it becomes a resignation letter or a health event.
Privacy by design
The system is built to extract acoustic features only. It is not a transcription product and not a surveillance tool.
Amplifier analyzes acoustic properties of speech, pitch, timing, energy, and voice quality. It is not designed to produce or store a transcript of call content.
Fatigue and burnout signal is reported to the individual first. Organization-level reporting is aggregate and configurable, never a single person's raw readout surfaced without their knowledge.
Participants are informed Amplifier is active on a call, consistent with how recording and transcription tools already disclose their presence today.
The same vocal biomarker technology behind Amplifier's clinical and wellness screening tools, developed and validated outside of the Zoom integration itself.
Add Amplifier to Zoom and start building a fatigue and burnout baseline for your leadership team today.