The Digital Biomarker OS: Longitudinal Measurement Infrastructure.
The companion is the human interface. The longitudinal measurement engine is the core technology. Our platform is architected to observe repeatable communication patterns over time, compare them against an individual's own baseline, and provide structured context for clinical researchers and care teams.
Voice Companion
Human-friendly interface and voluntary interaction
Accessible, natural-language conversations in the participant's preferred vernacular language, designed for older adults without complex application interfaces.
Accessible Vernacular Engagement
Interactions take place through natural spoken conversations in the participant’s preferred language. Rather than requiring complex mobile navigation or wearable maintenance, the interface accommodates geriatric speech pacing and natural code-switching.
High-Precision Signal Isolation
Before any measurement is computed, automated quality gates assess ambient signal-to-noise ratios, verify speaker continuity, and account for audio channel characteristics so environmental noise is not mistaken for physiological change.
Personal Reference Distributions
Human speech varies widely by age, region, education, and time of day. The platform establishes a multi-session personal baseline for each participant, comparing subsequent sessions against their own historical trajectory.
Separating Transient Noise from Sustained Drift
A single unusual conversation rarely carries clinical meaning. Longitudinal filtering evaluates sustained multi-day shifts while accounting for transient confounders such as an acute seasonal cold, poor sleep, or medication timing.
Grounded in Independent Clinical Evidence
In research and institutional cohorts, longitudinal vocal measurements are paired with independent clinical evaluations, standardized cognitive instruments, and physician-adjudicated outcomes.
Role-Appropriate Views & Future Signals
Families receive reassuring wellness and engagement summaries without exposing private conversation transcripts unless explicitly authorised. Over time, the baseline architecture is designed to incorporate movement, sleep, and functional signals.
Individual Baseline Band vs. Cross-Sectional Population Threshold
Methodological Note (Illustrative Only): This diagram illustrates the conceptual difference between comparing a participant against a broad cross-sectional population average versus tracking change relative to their own historical baseline. It does not depict patient outcomes or claim validated diagnostic accuracy.
Explore Scientific Foundations or Institutional Collaboration
Review the peer-reviewed acoustic and psycholinguistic literature informing our measurement taxonomy, or discuss a prospective observational study with our research team.