The Ear LabThe Ear Lab

I. The instruments

Fifteen working instruments,
in your browser.

Each instrument implements a published procedure with the references printed beneath it. Calculations and audio generation stay in your browser. No accounts. No uploads.

  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

    v1.0

    Pure Tone Average Calculator

    Calculate each ear from an existing audiogram with the standard 3-frequency PTA or WHO 4-frequency better-ear method.
    Range -10 - 120 dB HL
    Duration ≈ 1 min

    Calculate your PTA →

  5. TEL-T05

    v1.0

    Private Tinnitus Diary

    Track loudness, distress, sleep, stress, sounds, and possible triggers. Entries stay in this browser and can be exported as CSV.
    Range 0 - 10 scales
    Duration ≈ 2 min

    Start a private entry →

  6. TEL-T06

    v1.0

    Audiogram Symbols Key

    Filter and compare the common air, bone, masked, unmasked, and no-response marks used on hearing-test charts.
    Range 8 symbol rows
    Duration ≈ 2 min

    Decode the symbols →

  7. TEL-T07

    v1.0

    Speech Banana Audiogram

    Plot one ear from an existing audiogram over a carefully labeled, illustrative speech region without turning it into a diagnosis.
    Range 250 Hz - 8 kHz
    Duration ≈ 2 min

    Plot your thresholds →

  8. TEL-T08

    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.

  9. TEL-T13

    v1.0

    Tinnitus Handicap Inventory Scorer

    Answer the 25 published THI items, apply the yes, sometimes, and no points, and read the published severity band.
    Range 0 - 100
    Duration ≈ 5 min

    Score your THI →

  10. TEL-T14

    v1.0

    Hearing Device Decision Helper

    Sort age, hearing degree, fitting needs, budget, tinnitus, and warning signs through the FDA OTC and NIDCD guidance.
    Range Adult decision path
    Duration ≈ 4 min

    Choose a path →

  11. TEL-T15

    v1.0

    Ear Symptom Sorter

    Sort fullness, itching, discharge, pain, muffled hearing, popping, and recent flight or swimming into a possible pattern.
    Range 7 symptom inputs
    Duration ≈ 3 min

    Sort symptoms →

  12. TEL-T16

    v1.0

    Ototoxic Medication Checker

    Search six documented medication classes and common names for hearing, tinnitus, and balance effects in published references.
    Range 6 medication classes
    Duration ≈ 3 min

    Check a class →

  13. TEL-T17

    v1.0

    Tinnitus Nutrient Deficiency Screener

    Use diet, age, medicine, fatigue, and numbness context to prepare a B12, ferritin, and zinc blood-test discussion.
    Range 5 context groups
    Duration ≈ 3 min

    Prepare questions →

  14. TEL-T18

    v1.0

    Sound Therapy Noise Generator

    Generate white, pink, or brown noise with approximate bands, a low starting level, a timer, and a listening warning.
    Range 4 band settings
    Duration Streaming

    Generate a sound →

  15. TEL-T19

    v1.0

    Earplug Attenuation Calculator

    Compare the OSHA NRR derating formula with NIOSH earmuff, formable-plug, and other-plug alternatives.
    Range 0 - 140 dBA
    Duration ≈ 2 min

    Calculate attenuation →

  16. TEL-T20

    v1.0

    Loudness Discomfort Estimator

    Run ten rising relative tone steps with a hard volume cap. Browser output is uncalibrated, so the result is not a clinical LDL.
    Range 10 relative steps
    Duration ≈ 5 min

    Start tone steps →

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

Entered values stay in your browser and are not uploaded. Generic site analytics may record that a tool was used, but not the values you entered.

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.