Complexity-effective auditory compensation with a controllable filter for digital hearing aids

Ya Ting Chang*, Kuo Chiang Chang, Yu Ting Kuo, Chih-Wei Liu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Auditory compensation consumes significant power due to the computation-intensive operations in the filter bank. To reduce the complexity, a controllable filter was designed to replace the filter bank. Filter order was designed to match prescriptions within a specific error constraint with minimum computational cost. An interpolation scheme according to the variation of signal intensity was implemented to reduce the overhead of coefficients calculations. The proposed auditory compensation reduces 80% of multiplications and 30% of power consumption compared to the complexity-effective multi-rate filter bank architecture [4]. Moreover, the group delay was also reduced from 10 ms to 2.4 ms.

Original languageEnglish
Title of host publicationASP-DAC 2012 - 17th Asia and South Pacific Design Automation Conference
Pages557-558
Number of pages2
DOIs
StatePublished - 26 Apr 2012
Event17th Asia and South Pacific Design Automation Conference, ASP-DAC 2012 - Sydney, NSW, Australia
Duration: 30 Jan 20122 Feb 2012

Publication series

NameProceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC

Conference

Conference17th Asia and South Pacific Design Automation Conference, ASP-DAC 2012
CountryAustralia
CitySydney, NSW
Period30/01/122/02/12

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