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Title:
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DIRECTIVITY PATTERN SIMULATION OF THE EARS WITH TWO TWIN HEARING AID MICROPHONES BY BOUNDARY ELEMENT METHOD |
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Author(s):
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Soon Suck Jarng , Hae Jung Yang , Pyun Jae Young , Han Seung Jo , Pan Sung Bum , Lee Dong Min |
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ISBN:
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978-972-8924-30-0 |
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Editors:
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Nuno Guimarães and Pedro Isaías |
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Year:
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2007 |
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Edition:
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Single |
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Keywords:
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Boundary element method, BEM, simulation, directivity, Two twin microphone Modelling, simulation. |
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Type:
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Short Paper |
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First Page:
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630 |
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Last Page:
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634 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Two twin microphones may produce particular patterns of directivity by time delays between twin microphones. The boundary element method (BEM) was used for the simulation of the sound pressure field around the head. The sound pressure onto the microphone was calculated by the BEM to an incident sound pressure. Then a directivity pattern was formed by four sound pressure signals from four microphones. The optimal directivity pattern may be achieved not by adjusting single time delay parameter but by adjusting single phase delay parameter for all frequency band. |
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