Pitch Pattern Sequence Test

What it measures

This test screens auditory temporal ordering — your ability to perceive and report the order of a short sequence of high and low tones. It is a home version of the Pitch Pattern Sequence (PPS) test, one of the subtests audiologists use when evaluating auditory processing. It is not a measure of how loud you can hear; it probes how your brain organises sound over time.

How it works

You hear a sequence of three pure tones, each either high (1430 Hz) or low (880 Hz) — the classic Pinheiro and Musiek pitch-pattern frequencies — with a short gap between each. After it plays, you set each of the three positions to High or Low to report the order you heard, then submit. A sequence counts as correct only if all three positions match. You do this across ten sequences. Because each three-tone pattern has eight possible high/low arrangements, pure guessing scores about 12%. Reporting tone order correctly relies on auditory temporal ordering and pattern perception, the same skill the clinical PPS test targets. Your accuracy is compared against the chance level so you can see whether your performance is meaningfully better than guessing.

Tips for an accurate result

• 1Replay if you lose the order — It is fine to replay a sequence before answering. Take a moment to settle, then play it once and try to hold all three tones in mind.
• 2Hum or trace the contour — Quietly tracing the up-and-down shape of the pattern as it plays can help you remember the order until you have set all three positions.
• 3A low score has many ordinary causes — Tiredness, a noisy room, poor headphones, or simply an off day can lower your score. A single result is a screen, not a verdict — retest in quiet before reading much into it.