Dialed Color
TypesScoresPrivacy

sound

Humans can't reliably recall pitches. This assessment checks how closely you can recreate a tone after a short delay.

We'll play five tones, then you'll drag the tone track up or down to recreate each one.

Browser-generated pure tones with identical waveform, envelope, volume, and duration per round.

Solo or multiplayer?

Sound memory direct answer

Sound Memory Test

Sound Memory Test measures short-term pitch recall. The browser generates a target tone, you remember it, then recreate the pitch using the interactive tone control.

The report compares target Hz and submitted Hz with cents and ERB-rate distance. Raw Hz alone is misleading because pitch perception is not linear across the frequency range.

This is not a hearing exam, perfect-pitch diagnosis, or medical screening. Headphones, speakers, volume, background noise, and browser audio behavior can change performance.

Evidence at a glance

5 tones per standard run
1200 cents in one octave
ERB-rate perceptual auditory-distance basis
Web Audio local oscillator synthesis
Target source

Seed-generated Web Audio tones inside a fixed frequency range.

Measurement

Cents error and normalized ERB-rate distance instead of raw Hz difference alone.

Report use

Sharp/flat bias, low/mid/high target difficulty, average pitch error, and consistency.

Boundary

Not a hearing acuity test, pitch disorder test, or clinical auditory assessment.

Evidence

What authority supports this test?

The app compares target Hz and submitted Hz with cents plus ERB-rate distance, so pitch error is measured on logarithmic and perceptual scales instead of raw hertz alone.

The cited Web Audio and auditory-filter references support generated-tone synthesis and perceptual pitch-distance language. They are not medical validation.

Target fairness

How same-seed comparison stays fair

Bot Challenge compares the player against a transparent deterministic rival.

Friend Challenge and Live Match share the same seed, difficulty, and round count, so both sides hear the same generated target tones.

Limits

What can affect the result?

Headphones, speaker quality, volume, browser audio behavior, background noise, and hearing range can all change performance.

Report meaning

What the sound report should explain

A useful sound report shows whether the user tends to guess sharp or flat, whether errors grow in a specific frequency range, and whether recall is stable across rounds.

Because browser audio depends on hardware and environment, the report should include device and noise limitations instead of pretending the score is universal.

Result analysis

How to read a sound memory result

1 Use score as a summary

The total score summarizes five pitch reconstructions. It should be read with cents and ERB-rate distance, not raw Hz difference alone.

2 Look for sharp or flat bias

If guesses repeatedly land above the target, the memory is sharp-biased. If they land below, it is flat-biased.

3 Check frequency bands

Errors can cluster in low, mid, or high tones. That pattern is more useful than judging one isolated miss.

FAQ

Sound memory FAQ

Why not score by raw hertz?

A 20 Hz error has different perceptual meaning at low and high frequencies. Cents and ERB-rate distance are better pitch-memory summaries.

Are audio files copied from somewhere?

No. The test synthesizes tones locally in the browser with Web Audio.

Why do headphones matter?

Speakers, headphones, volume, background noise, and hearing range all affect how accurately a tone can be heard and remembered.

Can this diagnose perfect pitch?

No. It measures this short generated-tone recall task only.