Gammatone filters match the auditory nerve’s measured impulse response
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 (
#complicates, via linked claim)
Categorization
- XREF: connects to: Speech recognition models can derive subband and modulation power from 22 gammatone filters; Gammatone filters fail on level-dependence and fast-onset sounds — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1614; Basilar membrane displacement produces an asymmetric filter response across frequency. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 593 (+4 more)
Broader Connections
- Gammatone filters fail on level-dependence and fast-onset sounds
#complicates(0.85) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1614 - Auditory filter bandwidth scales nonlinearly with center frequency
#expands(0.80) - Suppression tuning curves mirror inner-ear neurophysiological frequency selectivity
#corroborates(0.78) - The notched-noise method directly measures auditory filter shape.
#responds-to(0.75) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 490 - Basilar membrane displacement produces an asymmetric filter response across frequency.
#expands(0.72) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 593 - Auditory filters respond asymmetrically, favoring frequencies below center
#expands(0.72) — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1124