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Family S · Synthetic · Experiment 4A

TEST NOISEBAND MASKING

How loud does a brief beep have to be before it stands out of a noise you are already hearing?

TEST NOISEBAND MASKING · RUN

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Test methods

METHOD ANOMALY

What a participant does

A continuous band of noise plays underneath the whole test. Brief tone pips are introduced at unpredictable moments, near the limit of noticeability. You press one main button the moment a beep actually stands out in the noise.

The headline number

Tone level needed for a pip to stand out of a noise band, against pip frequency

Unit
dB re the level you set
Measured against
the ceiling you set on the example beep, in the same session

Analysis

Estimators, uncertainty, and result interpretation are documented under Results and analysis.

Practicalities

Session
10 min
Course context
Chapter 3