Multi-Channel Wiener Filtering Based Auditory Steady-State Response Detection

The detection of auditory steady-state responses (ASSRs) provides an objective and frequency specific technique to assess reliable hearing thresholds at audiometric frequencies. Unfortunately, the duration of ASSR measurements can be long, which is unpractical for wide scale clinical application. Th...

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Bibliographic Details
Main Authors: Van Dun, B., Wouters, J., Moonen, M.
Format: Conference Proceeding
Language:English
Subjects:
auditory steady-state response
Auditory system
electroencephalogram
Electroencephalography
Frequency modulation
Hearing aids
hearing threshold estimation
Independent component analysis
multi-channel Wiener filtering
Pediatrics
Performance evaluation
Signal to noise ratio
Steady-state
Wiener filter
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Description
Summary:The detection of auditory steady-state responses (ASSRs) provides an objective and frequency specific technique to assess reliable hearing thresholds at audiometric frequencies. Unfortunately, the duration of ASSR measurements can be long, which is unpractical for wide scale clinical application. Therefore, we propose a multi-channel Wiener filtering (MWF) based technique with a priori knowledge through LQ factorisation as a tool to improve the ASSR detection in recorded multi-channel electroencephalogram (EEG) data obtained at intensities above hearing threshold. We conclude that this technique is able to reduce measurement duration significantly. For a multi-channel data set and implementation, near-optimal performance is obtained with five-channel recordings.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2007.366389