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Representation of external ear transfer function via a beamforming model

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3 Author(s)
Chen, Jiashu ; Wisconsin Univ., Madison, WI, USA ; van Veen, B. ; Hecox, K.

The modeling of the behavior of the external ear with a beamformer is proposed. The output of a beamformer is a weighted combination of the data received at any array of spatially distributed sensors. The beamformer weights and array geometry determine its spatial and temporal filtering characteristics. A least squares procedure for choosing the weights so the beamformer response approximates the measured response of the external ear is described. The effectiveness of this model is demonstrated by designing a beamformer of several hundred weights which duplicates and interpolates the measured external ear response of a cat over broad ranges of frequency and direction

Published in:

Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on

Date of Conference:

14-17 Apr 1991