標題: | Design of ANSI S1.11 filter bank for digital hearing aids |
作者: | Kuo, Yu-Ting Lin, Tay-Jyi Li, Yueh-Tai Chang, Wei-Han Liu, Chih-Wei Young, Shuenn-Tsong 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
公開日期: | 2007 |
摘要: | Existing digital hearing aids, to our knowledge, all exclude ANSI S1.11-compliant filter banks because of the high computational complexity. Most ANSI S1.11 designs are IIR-based and only applicable in applications where linear phase is not important. This paper presents an FIR-based ANSI S1.11 filter bank for digital hearing aids, which adopts a multi-rate architecture to reduce the data rates on the bandwidth-limited bands. A systematic way is also proposed to minimize the FIR orders thereof In an 18-band digital hearing aid with 24 kHz input sampling rate, the proposed design with linear phase has comparable computational complexity with IIR filter banks. Moreover, our design requires only 4% multiplications and additions of a straightforward FIR implementation. |
URI: | http://hdl.handle.net/11536/10256 http://dx.doi.org/10.1109/ICECS.2007.4510975 |
ISBN: | 978-1-4244-1377-5 |
DOI: | 10.1109/ICECS.2007.4510975 |
期刊: | 2007 14TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS, VOLS 1-4 |
起始頁: | 242 |
結束頁: | 245 |
顯示於類別: | 會議論文 |