IEICE TRANSACTIONS on Fundamentals
An Acoustic Echo Canceller with Sub-Band Noise Cancelling
Summary :
An acoustic echo canceller that also cancels room noise is proposed. This system has an additive (noise reference) input port, and a noise canceller (NC) precedes the echo canceller (EC) in a cascade configuration. The adaptation control problem for the cascaded echo and noise canceller is solved by controlling the adaptation process to match the occurrence of intermittent speech/echo; the room noise is a stationary signal. A simulation shows that adaptation using the NLMS algorithm is very effective for the echo and noise cancellation. Sub-band cancelling techniques are utilized. Noise cancellation is realized with a lower band EC. Hardware is implemented and its performance evaluated through experiments under a real acoustic field. The combination of the EC with NC maintains excellent performance at all echo to room noise power ratios. It is shown that the proposed canceller overcomes the disadvantages traditionally associated with ECs and NSc.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.11 pp.1516-1523
- Publication Date
- 1992/11/25
- Publicized
- Online ISSN
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- Type of Manuscript
- Special Section PAPER (Special Section on Acoustic System Modeling and Signal Processing)
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Hiroshi YASUKAWA, "An Acoustic Echo Canceller with Sub-Band Noise Cancelling" in IEICE TRANSACTIONS on Fundamentals,
vol. E75-A, no. 11, pp. 1516-1523, November 1992, doi: .
Abstract: An acoustic echo canceller that also cancels room noise is proposed. This system has an additive (noise reference) input port, and a noise canceller (NC) precedes the echo canceller (EC) in a cascade configuration. The adaptation control problem for the cascaded echo and noise canceller is solved by controlling the adaptation process to match the occurrence of intermittent speech/echo; the room noise is a stationary signal. A simulation shows that adaptation using the NLMS algorithm is very effective for the echo and noise cancellation. Sub-band cancelling techniques are utilized. Noise cancellation is realized with a lower band EC. Hardware is implemented and its performance evaluated through experiments under a real acoustic field. The combination of the EC with NC maintains excellent performance at all echo to room noise power ratios. It is shown that the proposed canceller overcomes the disadvantages traditionally associated with ECs and NSc.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e75-a_11_1516/_p
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@ARTICLE{e75-a_11_1516,
author={Hiroshi YASUKAWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An Acoustic Echo Canceller with Sub-Band Noise Cancelling},
year={1992},
volume={E75-A},
number={11},
pages={1516-1523},
abstract={An acoustic echo canceller that also cancels room noise is proposed. This system has an additive (noise reference) input port, and a noise canceller (NC) precedes the echo canceller (EC) in a cascade configuration. The adaptation control problem for the cascaded echo and noise canceller is solved by controlling the adaptation process to match the occurrence of intermittent speech/echo; the room noise is a stationary signal. A simulation shows that adaptation using the NLMS algorithm is very effective for the echo and noise cancellation. Sub-band cancelling techniques are utilized. Noise cancellation is realized with a lower band EC. Hardware is implemented and its performance evaluated through experiments under a real acoustic field. The combination of the EC with NC maintains excellent performance at all echo to room noise power ratios. It is shown that the proposed canceller overcomes the disadvantages traditionally associated with ECs and NSc.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - An Acoustic Echo Canceller with Sub-Band Noise Cancelling
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1516
EP - 1523
AU - Hiroshi YASUKAWA
PY - 1992
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E75-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 1992
AB - An acoustic echo canceller that also cancels room noise is proposed. This system has an additive (noise reference) input port, and a noise canceller (NC) precedes the echo canceller (EC) in a cascade configuration. The adaptation control problem for the cascaded echo and noise canceller is solved by controlling the adaptation process to match the occurrence of intermittent speech/echo; the room noise is a stationary signal. A simulation shows that adaptation using the NLMS algorithm is very effective for the echo and noise cancellation. Sub-band cancelling techniques are utilized. Noise cancellation is realized with a lower band EC. Hardware is implemented and its performance evaluated through experiments under a real acoustic field. The combination of the EC with NC maintains excellent performance at all echo to room noise power ratios. It is shown that the proposed canceller overcomes the disadvantages traditionally associated with ECs and NSc.
ER -
English
