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Virtual Acoustic Localization Experiment (VALEEvE)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02602171
Recruitment Status : Completed
First Posted : November 11, 2015
Last Update Posted : November 1, 2017
Information provided by (Responsible Party):
University of Zurich

Brief Summary:
The present study has the evaluation of a test to measure the localization performance goal . It is about the perception of danger audio signals in everyday listening environments nearby which are reproduced in controlled laboratory conditions. In addition, a dereverberation algorithm regarding speech intelligibility and localization ability is evaluated . The research hypothesis is that the dereverberation of the audio signals can improve speech intelligibility for both normal hearing and hearing-impaired persons. In addition, the binaural dereverberation algorithm should not affect the localization ability in everyday situations.

Condition or disease Intervention/treatment Phase
Hearing Loss Other: Oldenburger sentence test, localization test Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 20 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Other
Official Title: Virtual Acoustic Localization Experiment for the Evaluation of a Dereverberation Algorithm in Terms of Speech Intelligibility & Localization Performance of Normal Hearing & Hearing Impaired Subjects
Actual Study Start Date : April 2015
Actual Primary Completion Date : December 2015
Actual Study Completion Date : December 2015

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: dereverberation condition
Oldenburger Sentence test, localization test
Other: Oldenburger sentence test, localization test
Experimental: reverberation condition
Oldenburger Sentence test, localization test
Other: Oldenburger sentence test, localization test

Primary Outcome Measures :
  1. Oldenburger sentence test and localization test with 30 subjects [ Time Frame: 1 day ]
    The impact of a dereverberation algorithm for hearing aids and / or cochlear implants will be checked

Secondary Outcome Measures :
  1. Differences in localization ability [ Time Frame: 1 day ]
    By VALE (localization test) can differences in the localization ability between normal hearing and hearing-impaired people be measured

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • adults , in general healthy (no diagnosis of dementia and/or stroke known), mother tongue: (swiss) german, normal hearing or with hearing aid wearers both sides or with CI support on both sides, symmetrical hearing loss

Exclusion Criteria:

  • deviation of inclusion criteria, known fluctuating, rapidly progressive hearing loss, test person is not able to come one time a week to the University Hospital of Zurich or to handle 1-2 hours appointments or is not able to use touchscreen

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02602171

Sponsors and Collaborators
University of Zurich
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Principal Investigator: Norbert Dillier, Prof. Dr. University of Zurich
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Responsible Party: University of Zurich Identifier: NCT02602171    
Other Study ID Numbers: DN_23_10_15
First Posted: November 11, 2015    Key Record Dates
Last Update Posted: November 1, 2017
Last Verified: October 2017
Additional relevant MeSH terms:
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Hearing Loss
Hearing Disorders
Ear Diseases
Otorhinolaryngologic Diseases
Sensation Disorders
Neurologic Manifestations
Nervous System Diseases