Binaural-cue-based noise reduction using multirate quasi-ANSI filter bank for hearing AIDS

Huei Shiuan Tang, Cheng Yen Yang, Chih-Wei Liu, Chia Cheng Chien

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

2 Scopus citations

Abstract

This paper presents a low-power and real-time noise reduction (NR) algorithm using 18-band 1/3-octave quasi-ANSI filter bank for binaural hearing aids. With aids of binaural cues and minima controlled recursive average (MCRA) approach, the proposed NR algorithm consists of a directional mask and an estimated mask. The directional mask exploits the interaural time difference (ITD) together with the interaural level difference (ILD) of two input sources to attenuate the lateral noise, while the estimated mask is used to further reduce the background noise and the coherence noise. Investigated by the circumstances with the -3 dB, 0 dB, and 3 dB, respectively, cocktail-party effect, the simulation results show that the proposed binaural NR algorithm gains an average of approximately 5.07 dB SNR improvement. Moreover, the speech intelligibility index (SII) performance is superior, comparing that with the state-of-the-art NR algorithms for hearing aids. The proposed binaural NR algorithm has been implemented in TSMC 90 nm CMOS high-VT technology. The chip design is operated by 288 KHz and consumes approximately 121.6 μW (@1 V). The chip design can be operated by 0.6 V for real-time processing 24 kHz audio. The simulated power consumption is approximately 64.52 μW for binaural hearing aids.

Original languageEnglish
Title of host publication2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages21-24
Number of pages4
ISBN (Electronic)9781509015702
DOIs
StatePublished - 3 Jan 2017
Event2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016 - Jeju, Korea, Republic of
Duration: 25 Oct 201628 Oct 2016

Publication series

Name2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016

Conference

Conference2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016
CountryKorea, Republic of
CityJeju
Period25/10/1628/10/16

Keywords

  • binaural oise reduction
  • ILD
  • ITD
  • MCRA
  • quasi-ANSI filter bank

Fingerprint Dive into the research topics of 'Binaural-cue-based noise reduction using multirate quasi-ANSI filter bank for hearing AIDS'. Together they form a unique fingerprint.

Cite this