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The directionality of the frog ear described by a mechanical model

1984; Elsevier BV; Volume: 110; Issue: 2 Linguagem: Inglês

10.1016/s0022-5193(84)80053-3

1095-8541

Alan R. Palmer, Adrian C. Pinder,

Hand Gesture Recognition Systems

The frog ear can be modelled as two coupled eardrums with an additional sound pathway through the mouth cavity. In a previous version of this model, with realistic parameters, we were able to account very well for empirical measurements of the eardrum vibration under free- and closed-field acoustic conditions. This earlier model does not, however, adequately predict the directional characteristics of the frog ear as determined empirically. In this paper we present a modified model which will acount for the directionality together with the free- and closed-field frequency responses, and which is also consistent with anatomical considerations.