1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Horizontal localization with bilateral hearing aids: Without is better than with
Rent:
Rent this article for
USD
10.1121/1.2139653
/content/asa/journal/jasa/119/1/10.1121/1.2139653
http://aip.metastore.ingenta.com/content/asa/journal/jasa/119/1/10.1121/1.2139653

Figures

Image of FIG. 1.
FIG. 1.

An overview of the used test setup. The “4 to 13 switch box” is connected to the array of 13 (gray colored) loudspeakers and enables the test program to play target sounds from a personal computer on the speakers (connections are not drawn for reasons of clarity). The compact disk players are connected to the 2 YAMAHA (noncolored) speakers located at and of the subject. These are used to create the noise scenario. A camera is used to monitor the subject.

Image of FIG. 2.
FIG. 2.

Up: The time structure of a sample of the used telephone ringing signal which alternates between a “softer” and a “louder” fragment. Middle: The power spectral density of the louder part of the telephone ringing signal. Down: The power spectral density of the softer part of the telephone ringing signal.

Image of FIG. 3.
FIG. 3.

The error bars show the rms error per speaker when accumulating all responses of the different test conditions per stimulus location. This was done for the group of normal hearing subjects (NH), the group of hearing impaired subjects without hearing aids (NO), with hearing aids using an omnidirectional configuration (O), and an adaptive directional configuration (A).

Image of FIG. 4.
FIG. 4.

All responses given by the normal hearing subjects and the hearing impaired subjects with and without hearing aids for the different stimuli and acoustical conditions. The surface of the circles is proportional to the amount of responses given by the subjects.

Image of FIG. 5.
FIG. 5.

The mean responses given by the different normal hearing subjects and the different hearing impaired subjects with and without hearing aids for the different stimuli and acoustical conditions.

Image of FIG. 6.
FIG. 6.

ITD and ILD measurements with two Canta7 BTE hearing aids prototypes on a CORTEX manikin in anechoic conditions. Interaural time and level differences were measured between the ITE microphones of a CORTEX manikin (ITD ite, ILD ite), between the front omnidirectional microphones of the BTE devices (ITD front and ILD front), and between the back omnidirectional microphones of the BTE devices (ITD back and ILD back). Measurements were made using a broadband white-noise stimulus.

Tables

Generic image for table
TABLE I.

The audiometric data (in dB HL) of the 10 hearing impaired (HI) subjects and the mean audiometric data of the 10 normal hearing (NH) subjects.

Generic image for table
TABLE II.

The individual rms data with the mean MAE and rms data of the normal hearing subjects for the four different test conditions. All data are in units of degrees (°)

Generic image for table
TABLE III.

The individual rms data with the mean rms and MAE data of the hearing impaired subjects for the four different test signals and three different hearing aid settings.

Generic image for table
TABLE IV.

values (with Bonferroni adjustment) of the pairwise comparison for hearing impaired subjects. Conditions without hearing aids (no), with hearing aids with an omnidirectional microphone (o), and with hearing aids with an adaptive directional microphone (a) are compared with each other ( for a significance level of 0.05).

Loading

Article metrics loading...

/content/asa/journal/jasa/119/1/10.1121/1.2139653
2006-01-01
2014-04-25
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Horizontal localization with bilateral hearing aids: Without is better than with
http://aip.metastore.ingenta.com/content/asa/journal/jasa/119/1/10.1121/1.2139653
10.1121/1.2139653
SEARCH_EXPAND_ITEM