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Estimating loudness growth from tone-burst evoked responses
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10.1121/1.3397457
/content/asa/journal/jasa/127/6/10.1121/1.3397457
http://aip.metastore.ingenta.com/content/asa/journal/jasa/127/6/10.1121/1.3397457

Figures

Image of FIG. 1.
FIG. 1.

Example of how the waveVamp segmentation procedure works on one individual. The procedure is initiated by selecting the maximum between 4.5 and 10 ms after the stimulus onset at the highest recorded level (top). Subsequent wave V locations are determined by selecting the maximum peak within 0.5 ms before and 1 ms after the peak location of the previous level. The bold sections represent the regions over which the maxima were taken and the circles represent selected peaks. The waveforms in this figure were shifted vertically by an arbitrary amount for ease of comparison.

Image of FIG. 2.
FIG. 2.

Example of the abrsync segmentation procedure performed for one individual. The bold section represents the segmented region that was used for loudness estimation. The waveforms have been shifted vertically by an arbitrary amount for ease of comparison.

Image of FIG. 3.
FIG. 3.

Individual loudness-growth estimates for 1 kHz tone bursts. Loudness is presented in arbitrary, zero-mean units.

Image of FIG. 4.
FIG. 4.

Individual loudness-growth estimates for 4 kHz tone bursts. Loudness is presented in arbitrary, zero-mean units.

Image of FIG. 5.
FIG. 5.

Median MSE between the psychoacoustical and physiological loudness growth estimates for all eight normal listeners. The legend on the bottom graph also applies to the top graph (both plots span different ordinate ranges).

Image of FIG. 6.
FIG. 6.

Median MSE for five different loudness growth procedures according to the noise control method applied. For the psychoacoustical and TBOAE procedures, the noise control was used with all residual weights being equal (uniform) across SPL.

Image of FIG. 7.
FIG. 7.

Individual loudness-growth estimation for 1-kHz tone burst using CMM, ME, and full sync procedures with INEX noise control applied to fullsync. Loudness is presented in arbitrary, zero-mean units.

Image of FIG. 8.
FIG. 8.

Individual loudness growth estimation for 4-kHz tone burst using CMM, ME and fullsync procedures with weighted polynomial noise control applied to fullsync. Loudness is presented in arbitrary, zero-mean units.

Tables

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TABLE I.

List of previous studies that have examined the relationship between ABR parameters and loudness growth. See text for more details on each study.

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TABLE II.

Summary of the different segmentation procedures used.

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TABLE III.

Summary of the different noise control methods described.

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TABLE IV.

Statistics on the psychoacoustical measurement of loudness growth as a function of peSPL for 1-kHz tone bursts. The columns represent (from left to right): listener, mean-square-error between CMM and ME, CMM threshold, ME threshold, CMM slope, ME slope, average standard error on the CMM procedure, and average standard error on the ME procedure.

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TABLE V.

Statistics on the psychoacoustical measurement of loudness growth as a function of peSPL for 4-kHz tone bursts. The columns represent (from left to right): listeners, mean-square-error between CMM and ME, CMM threshold, ME threshold, CMM slope, ME slope, average standard error on the CMM procedure, and average standard error on the ME procedure.

Generic image for table
TABLE VI.

Statistics for the TBABR recordings on eight normal listeners (see text for details). The names represent: V Lat—Wave V latency, Ave Noise—average residual noise power across peSPL, and Std Noise—standard deviation of the residual noise power across peSPL (see text for detail).

Generic image for table
TABLE VII.

Individual MSE between CMM and all other procedures at 1 (top) and 4 kHz (bottom).

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TABLE VIII.

Individual MSE between ME and all other procedures at 1 (top) and 4 kHz (bottom).

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/content/asa/journal/jasa/127/6/10.1121/1.3397457
2010-06-09
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Estimating loudness growth from tone-burst evoked responses
http://aip.metastore.ingenta.com/content/asa/journal/jasa/127/6/10.1121/1.3397457
10.1121/1.3397457
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