This interactive web-app demonstrations how relative hearing profile diagnostics can be integrated into dynamic, immersive experiences without relying on static, tedious hearing tone examinations. While you navigate the vehicle and collect elements, our background script actively tests your auditory limits. It measures both your response rates and directional precision to map your hearing thresholds across various clinical frequencies.
Clinical vs. Relative Screenings: Standard medical audiometers measure hearing levels in Absolute Decibels Hearing Level (dB HL) in carefully soundproofed booths. This web application measures relative hearing thresholds adjusted for consumer devices, enabling relative comparisons between ears, or baseline assessments over time.
The system constructs its signal architecture via the HTML5 Web Audio API. Pure, discrete sine waves are synthesized programmatically on-demand across standardized test frequencies: 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, and 8000 Hz. Directional split-ear simulation is achieved dynamically by routing independent oscillator channels to a StereoPannerNode matching the horizontal layout index.
The threshold monitoring mimics standard clinical tracking (Hughson-Westlake variant), adjusting the synthesized gain using logarithmic conversions (dB scale mapped directly to output amplitudes). Visual representations render programmatically on an isolated 2D coordinate system mapping frequency against relative hearing sensitivity (inverted decibel axis conforming to standard audiology layouts).
Future iterations could support standard calibration procedures using predefined reference noise values (e.g., biological calibration coefficients) to transform relative measurements into estimated dB HL ranges. Integrating ambient audio analysis through a microphone loop could also dynamically isolate room floor noise levels and prompt users to move to quieter environments for highly standardized assessments.