14-ms-group-delay and low-complexity algorithm design of 18-band quasi-ANSI S1.11 1/3 octave filter bank for digital hearing aids

Shin Chi Lai, Chih Hao Liu, Ling Yi Wang, Sheau Fang Lei

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

This paper presents a novel algorithm design of 18-band quasi-class-2 ANSI S1.11 1/3 octave filter bank with the advantages of low group delay and low complexity. The proposed method utilizes a simple low-pass filter (LPF) and discrete cosine transform (DCT) modulation to generate a uniform 9-band filter bank first, and then transfer all element of z-1 into all-pass filter in order to obtain the non-uniform filter bank to meet the standard. Additionally, a fast recursive DCT algorithm is proposed to efficiently accomplish variable-length modulation. Hence, the spectrum of LPF can be easily spanned and flexibly extended to the position of the desired central frequency. Finally, by combining with multi-rate concept, we can realize an 18-band quasi-class-2 filter bank design. Compared with the latest Liu et al.'s quasi-class-2 ANSI S1.11 design, the proposed method totally has 63.4% reduction for multiplications per sample and 14-ms group delay, although we still have 15.2% increase for additions per sample.

原文English
主出版物標題Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014
編輯Junzo Watada, Akinori Ito, Chien-Ming Chen, Jeng-Shyang Pan, Han-Chieh Chao
發行者Institute of Electrical and Electronics Engineers Inc.
頁面81-84
頁數4
ISBN(電子)9781479953905
DOIs
出版狀態Published - 2014 十二月 24
事件10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014 - Kitakyushu, Japan
持續時間: 2014 八月 272014 八月 29

出版系列

名字Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014

Other

Other10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014
國家Japan
城市Kitakyushu
期間14-08-2714-08-29

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Artificial Intelligence
  • Signal Processing

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  • 引用此

    Lai, S. C., Liu, C. H., Wang, L. Y., & Lei, S. F. (2014). 14-ms-group-delay and low-complexity algorithm design of 18-band quasi-ANSI S1.11 1/3 octave filter bank for digital hearing aids. 於 J. Watada, A. Ito, C-M. Chen, J-S. Pan, & H-C. Chao (編輯), Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014 (頁 81-84). [6998273] (Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IIH-MSP.2014.27