Digit Optimization Test

Round setup

One presentation per digit at each SNR.

0 trials

Study ID Participant ID Test ear Round number Stimulus language Design preset SNR levels (dB) Trial order Correction target Planned participants per voice Three practice trials Initial masker gain Starting value for the calibration step. Show SNR during trials Auto play next trial Auto-play gap (ms)

Local round archive

Stored on this browser only, not on the server. Use participant codes, not names. Keep downloaded JSON backups; clearing browser data removes this archive.

Group-level PI analysis

After collecting individual full JSON exports, upload them together here to estimate the final group PI functions and correction levels.

Ear selection

Noise calibration

Adjust the background noise to a comfortable, clearly audible level. This masker level will stay fixed for all formal trials.

Language

Set masker level

Use the same headphones and computer volume you will use during the test. Start the noise loop, adjust the slider, then confirm the level.

Masker level 1.00

Play the noise and adjust the level before starting the test.

Stereo headphones required. Keep the L/R orientation correct and device mono audio off.

I hear the noise in the selected ear(s).

Task

Trial 0 / 0

SNR hidden Press Play to hear one digit.

Optimization Results

Positive correction values increase digit level; negative values decrease it.

Digit Optimization Test

Round setup

Local round archive

Group-level PI analysis

Noise calibration

Set masker level

Task

Optimization Results

Integrated DIN correction array

Correction levels

PI function plot

Fit quality

Accuracy by SNR x Digit

Observed PI points