PTC – Psychophysical Tuning Curve (Audiology)

Test Runner

Participant ID

Session Name

Ear

Auto‑advance freqs

Probe frequency (Hz)

Probe level (rel dB)

Masker bandwidth (Hz)

Step size (dB)

Masker center freqs (×CF)

Comma‑separated multipliers around probe (CF). Example presets: Narrow · Wide

Calibration & Safety

Use good headphones in a quiet room. This web app cannot produce calibrated dB SPL; levels are relative. Start with low volume. Stop if sound is uncomfortable.

Shortcuts: H Hear · M Masked · Space Pause/Resume

Adaptive Track (per frequency)

Rule: press Can Hear Probe if you hear it under the masker; press Masked / Cannot Hear if you do not. The masker level adapts until stability, then a point is saved.

Idle — — dB Reversals: 0

Adaptive Rule

Reversal Target

Tuning Curve

Import JSON

PID	Session	Ear	Probe(Hz)	Center(Hz)	Level(dB rel)	BW(Hz)	Rule	Revs	Time

Note This is an educational/research UI, not a clinical audiometer. For your grandma, keep volumes comfortable and take breaks.