Complexity-effective dynamic range compression for digital hearing aids

Kuo Chiang Chang*, Yu Ting Kuo, Tay Jyi Lin, Chih-Wei Liu

*Corresponding author for this work

研究成果: Conference contribution同行評審

9 引文 斯高帕斯(Scopus)

摘要

Dynamic range compression (DRC) is an essential function in digital hearing aids, which have stringent power consumption constraints. This work minimized the complexity of the DRC algorithm through adopting functional approximation for those involved nonlinear operations. The tradeoff between computation reduction and approximation error was explored for reducing hardware cost without introducing audible artifact. Moreover, finite wordlength analysis is conducted for the wordlength minimization and further complexity saving. The experimental result shows that our design totally reduces 96% computing complexity of the straightforward implementation without introducing audible difference in the output signals. Compared with other approximation methods, our design also requires lower hardware complexity.

原文English
主出版物標題ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
主出版物子標題Nano-Bio Circuit Fabrics and Systems
頁面2378-2381
頁數4
DOIs
出版狀態Published - 31 八月 2010
事件2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France
持續時間: 30 五月 20102 六月 2010

出版系列

名字ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems

Conference

Conference2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
國家France
城市Paris
期間30/05/102/06/10

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