Аннотация
An alternative approach to psychoacoustical masking modelling is to
model such phenomena as suppression, spread of-excitation and IHC
adaptation, which are among the underlying physiological phenomena
for psychoacoustically observed masking. This paper proposes a physiologically
grounded model for threshold estimation. It includes a reconfigurable
non-uniform filterbank to simulate a "cochlear amplifier" and an
associated suppression effect and a digital reservoir IHC model to
account for their adaptive responses. It allows designing coders,
which retain enough information to create an identical excitation
pattern in the auditory nerve compared to that of the original signal.
As our model is based on the masking physiology, its application
is justified in the complex audio signals case.
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