The Weber fraction for frequency declines below 1500 Hz then rises above 2000 Hz

Evidence

Plotting the data in this way indicates that for frequencies below 1500 Hz, the Weber fraction decreases with increasing frequency. For frequencies above 2000 Hz, the ratio increases with increasing frequency. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1266

Categorization

• XREF: Non-constant Weber fraction across frequency points to a non-Weberian regime, useful when cross-comparing pitch models.