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Identifying channel-specific impairments in cochlear implant patients via partial least squares discriminant analysis of speech-token confusion matrices

Publication ,  Conference
Remus, JJ; Collins, LM
Published in: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
January 1, 2010

It is not uncommon for cochlear implant patients to have individual electrodes that produce anomalous percepts that impair or prevent the effective transmission of auditory information. Exhaustive psychophysical testing to detect all such information channels is time prohibitive; however, if impaired channels could be identified quickly then the application of remediation strategies becomes more cost-effective. Previous studies have suggested that the missing speech information could produce a predictable pattern of errors in speech-token identification tasks [1, 2]. This study investigates the application of partial least squares discriminant analysis to identifying the presence of channel-specific impairments based on confusion matrices generated from vowel and consonant token identification tasks. The results of this study, using normal-hearing subjects tested with acoustic models, suggest that the partial least squares discriminant analysis can successfully distinguish impaired and unimpaired models, as well as identify channel-specific impairments, without requiring a significant amount of labeled training data. ©2010 IEEE.

Duke Scholars

Published In

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

DOI

ISSN

1520-6149

ISBN

9781424442966

Publication Date

January 1, 2010

Start / End Page

4746 / 4749
 

Citation

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Remus, J. J., & Collins, L. M. (2010). Identifying channel-specific impairments in cochlear implant patients via partial least squares discriminant analysis of speech-token confusion matrices. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 4746–4749). https://doi.org/10.1109/ICASSP.2010.5495171
Remus, J. J., and L. M. Collins. “Identifying channel-specific impairments in cochlear implant patients via partial least squares discriminant analysis of speech-token confusion matrices.” In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 4746–49, 2010. https://doi.org/10.1109/ICASSP.2010.5495171.
Remus JJ, Collins LM. Identifying channel-specific impairments in cochlear implant patients via partial least squares discriminant analysis of speech-token confusion matrices. In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 2010. p. 4746–9.
Remus, J. J., and L. M. Collins. “Identifying channel-specific impairments in cochlear implant patients via partial least squares discriminant analysis of speech-token confusion matrices.” ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 2010, pp. 4746–49. Scopus, doi:10.1109/ICASSP.2010.5495171.
Remus JJ, Collins LM. Identifying channel-specific impairments in cochlear implant patients via partial least squares discriminant analysis of speech-token confusion matrices. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 2010. p. 4746–4749.

Published In

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

DOI

ISSN

1520-6149

ISBN

9781424442966

Publication Date

January 1, 2010

Start / End Page

4746 / 4749