发明名称 Method for optimizing a multilevel filter bank and corresponding filter bank and hearing apparatus
摘要 A filter bank system that is optimized with respect to group delay and power consumption is provided. The filter bank system has multiple levels and has an input-side and an output-side filter bank based on a defined filter type. The input-side filter bank has input channels as a variable first parameter, and an oversampling factor as a variable second parameter. For optimizing the multilevel filter bank, a group delay and an operation rate are now respectively determined for each of a plurality of value pairs of the first and second parameters. The value pair for which the associated group delay and the associated operation rate satisfy a defined criterion, in particular for which they are as low as possible, is selected from the value pairs. The input-side filter bank is subsequently configured with the number of channels and the oversampling factor corresponding to the selected value pair.
申请公布号 US8150081(B2) 申请公布日期 2012.04.03
申请号 US20090469030 申请日期 2009.05.20
申请人 ALFSMANN DANIEL;SIEMENS MEDICAL INSTRUMENTS PTE. LTD. 发明人 ALFSMANN DANIEL
分类号 H04R25/00 主分类号 H04R25/00
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