Method and apparatus for estimating auditory filter shape

Details Method and apparatus for estimating auditory filter shape Method and apparatus for estimating auditory filter shape

2006-05-23

2006-05-23

Hindenburg, Max F. (Department: 3736)

Surgery

Diagnostic testing

Ear or testing by auditory stimulus

Reexamination Certificate

active

07048692

ABSTRACT:
A method for estimating the shape of an auditory filter by finding a coefficient p of a roex (p, r) filter which is used as a model for the shape of the auditory filter is provided, which comprises the steps of: generating a tone S′; generating a masker of a notch width g and level Nx′ including in a notch the frequency f in which frequency characteristics of the external and middle ears of the subject are considered; transmitting to the subject a sound which superposes the masker on the tone S′; measuring the minimum notch width gx−aof the subject while varying the notch width g; calculating the coefficient p from an upper limit value gmaxof the notch width g suitable for the subject and estimating the shape of the auditory filter from the coefficient p calculated above and the value x corresponding to the coefficient r.

REFERENCES:
patent: 4768022 (1988-08-01), Patterson
patent: 5774559 (1998-06-01), Feng
patent: 5794188 (1998-08-01), Hollier
patent: 6109107 (2000-08-01), Wright et al.
patent: 06-327654 (1994-11-01), None
Patterson, Roy D., “Auditory Filter Shapes Derived with Noise Stimuli”, Journal of the Acoustical Society of America, vol. 59, No. 3, pp. 640-654.

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