A decision-directed adaptive gain equalizer for assistive hearing instruments
Assistive hearing instruments have a significant impact on speech enhancement when the signal-to-noise ratio is low. These instruments are usually developed using the conventional adaptive gain equalizer (AGE), which has low computational complexity and low distortion in real-time speech enhancement...
| Main Authors: | , , , |
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| Format: | Journal Article |
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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
2014
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/8570 |
| _version_ | 1848745696958611456 |
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| author | Chan, Kit Yan Low, S.Y. Nordholm, Sven Yiu, Ka Fai |
| author_facet | Chan, Kit Yan Low, S.Y. Nordholm, Sven Yiu, Ka Fai |
| author_sort | Chan, Kit Yan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Assistive hearing instruments have a significant impact on speech enhancement when the signal-to-noise ratio is low. These instruments are usually developed using the conventional adaptive gain equalizer (AGE), which has low computational complexity and low distortion in real-time speech enhancement. The conventional AGEs are intended to boost the speech segments of speech signals but they are incapable of suppressing noise segments. The overall speech quality of the assistive hearing instruments may be reduced, as the noise segments still cannot be filtered out. In this paper, a decision-directed AGE is proposed for assistive hearing instruments. It aims to overcome the limitation of the conventional AGE, which is capable only of boosting speech segments in noisy speech but incapable of suppressing noise segments. The proposed approach simultaneously boosts the speech segments and suppresses noise segments in noisy speech. Experimental results with different types of real-world noise indicate that the proposed method achieves better speech quality than does the conventional AGE. The resulting method provides an improved functionality for assistive hearing instruments. |
| first_indexed | 2025-11-14T06:21:28Z |
| format | Journal Article |
| id | curtin-20.500.11937-8570 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:21:28Z |
| publishDate | 2014 |
| publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-85702017-09-13T14:52:04Z A decision-directed adaptive gain equalizer for assistive hearing instruments Chan, Kit Yan Low, S.Y. Nordholm, Sven Yiu, Ka Fai particle swarm optimization adaptive gain equalizer Perceptual Evaluation of Speech Quality (PESQ) speech enhancement heuristic algorithms Assistive hearing instruments speech booster single channel filter Assistive hearing instruments have a significant impact on speech enhancement when the signal-to-noise ratio is low. These instruments are usually developed using the conventional adaptive gain equalizer (AGE), which has low computational complexity and low distortion in real-time speech enhancement. The conventional AGEs are intended to boost the speech segments of speech signals but they are incapable of suppressing noise segments. The overall speech quality of the assistive hearing instruments may be reduced, as the noise segments still cannot be filtered out. In this paper, a decision-directed AGE is proposed for assistive hearing instruments. It aims to overcome the limitation of the conventional AGE, which is capable only of boosting speech segments in noisy speech but incapable of suppressing noise segments. The proposed approach simultaneously boosts the speech segments and suppresses noise segments in noisy speech. Experimental results with different types of real-world noise indicate that the proposed method achieves better speech quality than does the conventional AGE. The resulting method provides an improved functionality for assistive hearing instruments. 2014 Journal Article http://hdl.handle.net/20.500.11937/8570 10.1109/TIM.2014.2302242 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC fulltext |
| spellingShingle | particle swarm optimization adaptive gain equalizer Perceptual Evaluation of Speech Quality (PESQ) speech enhancement heuristic algorithms Assistive hearing instruments speech booster single channel filter Chan, Kit Yan Low, S.Y. Nordholm, Sven Yiu, Ka Fai A decision-directed adaptive gain equalizer for assistive hearing instruments |
| title | A decision-directed adaptive gain equalizer for assistive hearing instruments |
| title_full | A decision-directed adaptive gain equalizer for assistive hearing instruments |
| title_fullStr | A decision-directed adaptive gain equalizer for assistive hearing instruments |
| title_full_unstemmed | A decision-directed adaptive gain equalizer for assistive hearing instruments |
| title_short | A decision-directed adaptive gain equalizer for assistive hearing instruments |
| title_sort | decision-directed adaptive gain equalizer for assistive hearing instruments |
| topic | particle swarm optimization adaptive gain equalizer Perceptual Evaluation of Speech Quality (PESQ) speech enhancement heuristic algorithms Assistive hearing instruments speech booster single channel filter |
| url | http://hdl.handle.net/20.500.11937/8570 |