Acoustic device

申请公布号：US7062051(B2)

申请号：US20040450030

申请日期：2004.03.15

申请公布日期：2006.06.13

申请人：

NEW TRANSDUCERS LIMITED

发明人：HARRIS NEIL;AZIMA HENRY

分类号：H04R25/00;H04R1/00;H04R7/04;H04R11/02

主分类号：H04R25/00

摘要：A method of improving the modal resonance frequency distribution of a panel ( 2 ) for a distribution resonant mode bending wave acoustic device involves analysing the distribution of the modal resonance frequencies of the panel, identifying a modal resonance frequency that is non-uniformly spaced relative to adjacent modal resonance frequencies, identifying a location on said panel that exhibits anti-nodal behaviour at said modal resonance frequency and changing the local impedance to bending wave vibration at said location ( 6 ). The method has particular application to distributed mode loudspeakers ( 1 ).

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