Family S · Synthetic · Experiment 4K
TEST TEXTURE ODDBALL
How much does the grain of a noise have to change, briefly, before you hear the change?
TEST TEXTURE ODDBALL · RUN
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Test methods
METHOD ANOMALY
What a participant does
A textured noise runs continuously. Brief oddballs alter the grain at several roughness rates. You press once when the texture actually changes.
The headline number
Texture contrast needed for a grain change to be noticed, against roughness rate
- Unit
- % contrast
- Measured against
- the unchanged texture of the same carrier, in the same session
Analysis
Estimators, uncertainty, and result interpretation are documented under Results and analysis.
Practicalities
- Session
- 10 min
- Course context
- Chapter 8