Gammatone filters fail on level-dependence and fast-onset sounds

Evidence

Although gammatone filters provide a good approximation of the human auditory filters, they suffer from a few shortcomings. They cannot emulate the level-dependent characteristics of the auditory filters. In addition, the impulse response of a gammatone filter has a relatively slow onset, which brings on problems when modelling phenomena involving temporally short sounds, such as the precedence effect. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1614

Categorization

• XREF: The precedence effect is a key auditory phenomenon relevant to echo suppression in room acoustics and hearing-aid design; the slow-onset limitation constrains applications modeling transient sounds. — connects to: Speech recognition models can derive subband and modulation power from 22 gammatone filters; Gammatone filters match the auditory nerve’s measured impulse response; Narrow-band filters smear signal onset despite resolving harmonics (+2 more)
• corroborated: 3 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1614

Broader Connections

• Frequency selectivity in normal-hearing listeners worsens at high sound levels #corroborates (0.82) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1698
• Narrow-band filters smear signal onset despite resolving harmonics #expands (0.80)