Two-stage adaptive filtering techniques for noise cancellation in hearing aids

CN Canagarajah; PJW Rayner

doi:10.1109/ISCAS.1992.230140

Two-stage adaptive filtering techniques for noise cancellation in hearing aids

CN Canagarajah
, PJW Rayner

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

2 Citations (Scopus)

374 Downloads (Pure)

Abstract

Most of the existing adaptive noise cancelling techniques produce little improvement in the intelligibility of speech for the hearing impaired in reverberant environments. In this paper we propose two-stage adaptive structures to improve speech intelligibility in noise. The first stage removes the interference and produces a distorted version of the signal. The second stage then removes this distortion and the clean signal is obtained. We suggest two algorithms: an unconstrained and a constrained one for the first stage. In high Signal-to-Noise Ratios (SNR) both perform very well and more than 20dB noise reduction may be achieved. In low SNR the constrained algorithm performs better with a slight increase in the computational load.

Translated title of the contribution	Two-stage adaptive filtering techniques for noise cancellation in hearing aids
Original language	English
Title of host publication	International Symposium on Circuits and Systems
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	521 - 524
Volume	2
ISBN (Print)	0780305930
DOIs	https://doi.org/10.1109/ISCAS.1992.230140
Publication status	Published - May 1992
Event	International Symposium on Circuits and Systems - San Diego, CA, United States Duration: 1 May 1992 → …

Conference

Conference	International Symposium on Circuits and Systems
Country/Territory	United States
City	San Diego, CA
Period	1/05/92 → …

Bibliographical note

Conference Proceedings/Title of Journal: IEEE International Symposium on Circuits and Systems, 1992 (ISCAS '92)
Rose publication type: Conference contribution

Terms of use: Copyright © 1992 IEEE. Reprinted from IEEE International Symposium on Circuits and Systems, 1992 (ISCAS '92).

This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Access to Document

10.1109/ISCAS.1992.230140

Canagarajah IEEE ISCAS 1992Accepted author manuscript, 287 KB

http://hdl.handle.net/1983/1451

Handle.net

Persistent link

Cite this

@inproceedings{e572281edd5443d7aa6f7f7234c404a7,

title = "Two-stage adaptive filtering techniques for noise cancellation in hearing aids",

abstract = "Most of the existing adaptive noise cancelling techniques produce little improvement in the intelligibility of speech for the hearing impaired in reverberant environments. In this paper we propose two-stage adaptive structures to improve speech intelligibility in noise. The first stage removes the interference and produces a distorted version of the signal. The second stage then removes this distortion and the clean signal is obtained. We suggest two algorithms: an unconstrained and a constrained one for the first stage. In high Signal-to-Noise Ratios (SNR) both perform very well and more than 20dB noise reduction may be achieved. In low SNR the constrained algorithm performs better with a slight increase in the computational load.",

author = "CN Canagarajah and PJW Rayner",

note = "Conference Proceedings/Title of Journal: IEEE International Symposium on Circuits and Systems, 1992 (ISCAS '92) Rose publication type: Conference contribution Terms of use: Copyright {\textcopyright} 1992 IEEE. Reprinted from IEEE International Symposium on Circuits and Systems, 1992 (ISCAS '92). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ; International Symposium on Circuits and Systems ; Conference date: 01-05-1992",

year = "1992",

month = may,

doi = "10.1109/ISCAS.1992.230140",

language = "English",

isbn = "0780305930",

volume = "2",

pages = "521 -- 524",

booktitle = "International Symposium on Circuits and Systems",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

}

Canagarajah, CN & Rayner, PJW 1992, Two-stage adaptive filtering techniques for noise cancellation in hearing aids. in International Symposium on Circuits and Systems. vol. 2, Institute of Electrical and Electronics Engineers (IEEE), pp. 521 - 524, International Symposium on Circuits and Systems, San Diego, CA, United States, 1/05/92. https://doi.org/10.1109/ISCAS.1992.230140

TY - GEN

T1 - Two-stage adaptive filtering techniques for noise cancellation in hearing aids

AU - Canagarajah, CN

AU - Rayner, PJW

N1 - Conference Proceedings/Title of Journal: IEEE International Symposium on Circuits and Systems, 1992 (ISCAS '92) Rose publication type: Conference contribution Terms of use: Copyright © 1992 IEEE. Reprinted from IEEE International Symposium on Circuits and Systems, 1992 (ISCAS '92). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

PY - 1992/5

Y1 - 1992/5

N2 - Most of the existing adaptive noise cancelling techniques produce little improvement in the intelligibility of speech for the hearing impaired in reverberant environments. In this paper we propose two-stage adaptive structures to improve speech intelligibility in noise. The first stage removes the interference and produces a distorted version of the signal. The second stage then removes this distortion and the clean signal is obtained. We suggest two algorithms: an unconstrained and a constrained one for the first stage. In high Signal-to-Noise Ratios (SNR) both perform very well and more than 20dB noise reduction may be achieved. In low SNR the constrained algorithm performs better with a slight increase in the computational load.

AB - Most of the existing adaptive noise cancelling techniques produce little improvement in the intelligibility of speech for the hearing impaired in reverberant environments. In this paper we propose two-stage adaptive structures to improve speech intelligibility in noise. The first stage removes the interference and produces a distorted version of the signal. The second stage then removes this distortion and the clean signal is obtained. We suggest two algorithms: an unconstrained and a constrained one for the first stage. In high Signal-to-Noise Ratios (SNR) both perform very well and more than 20dB noise reduction may be achieved. In low SNR the constrained algorithm performs better with a slight increase in the computational load.

U2 - 10.1109/ISCAS.1992.230140

DO - 10.1109/ISCAS.1992.230140

M3 - Conference Contribution (Conference Proceeding)

SN - 0780305930

VL - 2

SP - 521

EP - 524

BT - International Symposium on Circuits and Systems

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - International Symposium on Circuits and Systems

Y2 - 1 May 1992

ER -

Two-stage adaptive filtering techniques for noise cancellation in hearing aids

Abstract

Conference

Bibliographical note

UN SDGs

Access to Document

Handle.net

Fingerprint

Cite this