dc.contributor.author | Georgis, Lara | |
dc.date.accessioned | 2014-08-15T14:01:34Z | |
dc.date.available | 2014-08-15T14:01:34Z | |
dc.date.issued | 2014-08-15 | |
dc.identifier.uri | http://hdl.handle.net/10222/53786 | |
dc.description.abstract | Fine-structure cues play a role in understanding speech in fluctuating noise, but do not appear to be accessible to listeners with sensorineural hearing loss (SNHL) (Lorenzi et al., 2006). Moore (2008) proposed that fine-structure cues may help mitigate deleterious effects of multichannel compression. Recent evidence suggests that effects of compression are not influenced by fine-structure and detailed spectral information (Hopkins et al., 2012). The present study measured impact of multichannel compression and the role of fine-structure. Two indices were considered to quantify spectral distortion introduced by compression. Speech understanding in noise was measured in normal-hearing subjects. Fine-structure was removed from the signal and spectral smearing was used to simulate broadened auditory filters characteristic of SNHL. Fast multichannel compression reduced intelligibility compared to single-channel and no compression. There was no interaction between compression and fine-structure or smearing. The results support Hopkins et al. (2012), and do not support Moore’s (2008) hypothesis. | en_US |
dc.language.iso | en | en_US |
dc.subject | compression | en_US |
dc.subject | hearing aids | en_US |
dc.subject | speech fine-structure | en_US |
dc.subject | speech intelligibility | en_US |
dc.title | Effects of Spectral Distortion on Speech Intelligibility | en_US |
dc.date.defence | 2014-07-31 | |
dc.contributor.department | School of Human Communication Disorders | en_US |
dc.contributor.degree | Master of Science | en_US |
dc.contributor.external-examiner | Janine Verge | en_US |
dc.contributor.graduate-coordinator | Dr. J. Armson | en_US |
dc.contributor.thesis-reader | Dr. M. Kiefte | en_US |
dc.contributor.thesis-reader | Dr. R. Caissie | en_US |
dc.contributor.thesis-reader | Neil Hockley | en_US |
dc.contributor.thesis-supervisor | Dr. S. Aiken | en_US |
dc.contributor.ethics-approval | Received | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |