Arbitrary-sound roughness is estimable by summing per-critical-band contributions

Evidence

Roughness is also perceived to be high when broadband noise is amplitude modulated. Also, when a sinusoid is frequency modulated, the auditory event is perceived to be rough. In both cases the signal produces roughness in many critical bands. In auditory modelling, the roughness perception caused by an arbitrary sound can be estimated by summing the partial roughness created in each critical band. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1242

Categorization

• DEFINE: The summing-over-critical-bands approach is a practical modeling method for engineering sound evaluation.
• corroborated: 2 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1242