External ear transfer function modeling: a beamforming approach.
J Acoust Soc Am
; 92(4 Pt 1): 1933-44, 1992 Oct.
Article
en En
| MEDLINE
| ID: mdl-1401538
ABSTRACT
In this article, a beamformer is proposed as a functional model for the spatial and temporal filtering characteristics of the external ear. The output of a beamformer is a weighted combination of the data received at an array of spatially distributed sensors. The beamformer weights and array geometry determine its spatial and temporal filtering characteristics. A procedure is described for choosing the weights to minimize the mean-squared error between the beamformer response and the measured response of the external ear. The effectiveness of the model is demonstrated by designing a beamformer of several hundred weights that duplicates and interpolates the measured external ear response of a cat over broad ranges of frequency and direction. A limited investigation of modeling performance as a function of array geometry is reported.
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Base de datos:
MEDLINE
Asunto principal:
Discriminación de la Altura Tonal
/
Localización de Sonidos
/
Dominancia Cerebral
/
Oído Externo
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
J Acoust Soc Am
Año:
1992
Tipo del documento:
Article