Auditory frequency analysis uses equivalent rectangular bandwidth units of fixed duration

Evidence

Subsequently, the resulting spectral power distributions were transformed to the equivalent rectangular bandwidth (ERB) scale. This was achieved by grouping power components within the frequency range of one ERB. The time-frequency (T-F) units thus created covered a fixed time length of 23 ms (i.e. 1024 samples) and a frequency band of 1 ERB width. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1643

Categorization

• DEFINE: Explains what an ERB-scaled time-frequency unit consists of: 23 ms length, 1 ERB bandwidth.