Human hearing is highly nonlinear and cannot be LTI-modelled beyond peripheral parts

Evidence

An amplitude-modulated sound is described in two parts: the envelope (or modulator), the portion of the stimulus that slowly varies over time, and the fine structure (or carrier), the portion of the stimulus with rapid pressure fluctuations. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 997 (#expands, via linked claim)

Categorization

  • corroborated: 3 independent passages support this claim
  • XREF: connects to: Combination tones arise from the hearing system’s own nonlinearity — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 430; Cubic difference tones in hearing defy regular nonlinear transfer models; Convolution mathematically links LTI system inputs to outputs. (+4 more)

Broader Connections