Hearing-modeling spectrograms use an ERB frequency axis from modeled auditory filters.

Evidence

The key feature to note about the hearing modeling spectrogram is that the sound is analyzed via a bank of filters that model the auditory filters in terms of their shape and bandwidth. As a result, the frequency axis is based on the ERB (equivalent rectangular bandwidth) scale itself, since the output from each filter is plotted with an equal distance on the frequency axis of the spectrogram. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1501

Categorization

• DEFINE: Explains ERB (equivalent rectangular bandwidth) and the auditory filter bank as the analytical substrate for the whole chapter.
• XREF: Connects to earlier chapters on critical bandwidth and auditory filter shape — the ERB scale is the quantifying link. — connects to: This book organizes hearing science around resonance, impulse response, autocorrelation, and power spectra; Real-time auditory models enable speech recognition, sound reproduction, and hearing aids — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1564; Computational simulation can generate testable hypotheses about auditory physiology (+5 more)
• corroborated: 2 independent passages support this claim — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1501

Broader Connections

• Frequency-domain analysis mirrors how the human ear processes sound #expands (0.75) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 377