The Ear Lab The Ear Lab

§ I. The instruments

Three working instruments,
in your browser.

Each instrument implements a published clinical procedure with the references printed beneath it. Audio is generated locally via the Web Audio API. No accounts. No uploads. Nothing is sent anywhere.

  1. TEL—T01

    v1.0

    Tinnitus Frequency Matcher

    Pure-tone pitch matching with explicit octave-confusion check. The standard clinical procedure, implemented in browser.
    Range 125 Hz – 16 kHz
    Duration ≈ 3 min

    Match your pitch →

  2. TEL—T02

    v1.0

    NIOSH Noise Dose Calculator

    Daily exposure dose against the NIOSH (3 dB exchange, 85 dBA REL) and OSHA (5 dB exchange, 90 dBA PEL) limits, with a time-to-100% table.
    Range 40 – 140 dBA
    Duration ≈ 1 min

    Calculate your dose →

  3. TEL—T03

    v1.0

    Hearing Range Test

    A 20-second logarithmic sweep. Tap when you can no longer hear the tone. Result is compared to ISO 7029 age-typical norms.
    Range 8 – 20 kHz
    Duration ≈ 2 min

    Test your range →

  4. TEL—T04

    forthcoming

    Notched Sound Therapy Generator

    Forthcoming

    Broadband noise with a 1/3-octave notch centered on your matched tinnitus pitch. Evidence base from notched-music-therapy research.

§ II.

Method

Method-faithful

Each instrument implements a standard audiology procedure or NIOSH formula. References are at the bottom of every instrument page.

Privacy by default

Audio is generated locally via the Web Audio API. No uploads. No tracking pixels. localStorage only if you choose to save a result.

Volume-capped

All tone-generating instruments cap output at a software-safe ceiling, below typical conversation level. Your device volume is still your responsibility.

Educational, not diagnostic

These instruments do not diagnose. Each result page links to an editorial note explaining what your measurement means in clinical context.