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The importance of temporal fine structure information in speech at different spectral regions for normal-hearing and hearing-impaired subjects
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10.1121/1.3293003
/content/asa/journal/jasa/127/3/10.1121/1.3293003
http://aip.metastore.ingenta.com/content/asa/journal/jasa/127/3/10.1121/1.3293003

Figures

Image of FIG. 1.
FIG. 1.

SRTs plotted as a function of CO for TFS-high and TFS-low conditions. Error bars are plotted at standard error of the mean.

Image of FIG. 2.
FIG. 2.

Audiometric thresholds of the test ears of the hearing-impaired subjects. The age of each subject is shown in parentheses.

Image of FIG. 3.
FIG. 3.

Mean results of experiment 2 for the normal-hearing subjects. The benefit of adding envelope information (open circles) was calculated as the difference between the SRT for the allvoc condition and the SRT for the − condition for each spectral region. The benefit from adding envelope and TFS information together (filled circles) was calculated as the difference between SRTs for the corresponding − and conditions. Error bars are plotted at standard error of the mean.

Image of FIG. 4.
FIG. 4.

As Fig. 3, but for the hearing-impaired subjects.

Image of FIG. 5.
FIG. 5.

Individual results of experiment two for the hearing-impaired subjects. Benefit scores were calculated in the same way as for Fig. 3. The bottom-right panels show the mean results for the hearing-impaired and normal-hearing subjects, for comparison. Error bars are plotted at standard error of the mean.

Image of FIG. 6.
FIG. 6.

Individual results for the hearing-impaired subjects and mean results for the normal-hearing subjects for experiments 2 and 3. The benefit from adding TFS information to the whole spectrum, as measured in experiment 2, is plotted in the bottom panel, ordered by performance. Scores from experiment 3 are plotted in the top panel, in the same order. Error bars show standard error of the mean.

Image of FIG. 7.
FIG. 7.

As Fig. 6, but with the data plotted as a scatter plot, and a regression line fitted to the data for the individual hearing-impaired subjects.

Tables

Generic image for table
TABLE I.

Differences between mean SRTs measured with different pairs of values of CO for TFS-high and TFS-low conditions. Equivalent cut-off frequencies (Hz) are also shown. The LSDs calculated using Fisher’s procedure were 2.3 (TFS-low condition) and 2.1 (TFS-high condition). Differences equal to or above this value are shown in bold.

Generic image for table
TABLE II.

Mean and SDs of the SRTs for the normal-hearing and hearing-impaired subjects for experiment 2.

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/content/asa/journal/jasa/127/3/10.1121/1.3293003
2010-03-23
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The importance of temporal fine structure information in speech at different spectral regions for normal-hearing and hearing-impaired subjects
http://aip.metastore.ingenta.com/content/asa/journal/jasa/127/3/10.1121/1.3293003
10.1121/1.3293003
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