Document Detail

Where did that sound come from? Comparing the ability to localise using audification and audition.
MedLine Citation:
PMID:  21923566     Owner:  NLM     Status:  Publisher    
Purpose: A prototype device was developed to allow individuals to hear ultrasound reflections off environmental obstacles. Previous studies have shown that this device allows for better distance judgement than audition and allows for effective passage through the centreline of apertures. The purpose of this research was to evaluate audification as a method to localise direct sound sources as compared to audition. Method: In an anechoic environment, participants localised point-sound sources for three conditions: auditory, audified ultrasound with receivers facing laterally, and audified ultrasound with receivers facing forward. Results: Azimuth localisation was similar within a range of-35° to 35° in front of the participant among all conditions. At the periphery,-70° and 70°, audified ultrasound was more accurate than audition for novice participants. No difference was evident in user elevation accuracy for these signals among the different conditions. Conclusion: Audification of ultrasound can be effective for localising point-source sounds in the azimuth direction, but more evidence is required to evaluate accuracy in the vertical direction. [Box: see text].
T Claire Davies; Shane D Pinder; George Dodd; Catherine M Burns
Related Documents :
21750306 - Discrimination and identification of periodic motion trajectories.
23454636 - Development of circadian rhythms: role of postnatal light environment.
17409176 - Interval coding. i. burst interspike intervals as indicators of stimulus intensity.
22047396 - Automatic 3d registration of dynamic stress and rest (82)rb and flurpiridaz f 18 myocar...
23201796 - Complete modeling of subsurface microscopy system based on aplanatic solid immersion lens.
12240666 - Selective attention and response inhibition alter phase-dependent cardiac slowing.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-17
Journal Detail:
Title:  Disability and rehabilitation. Assistive technology     Volume:  -     ISSN:  1748-3115     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101255937     Medline TA:  Disabil Rehabil Assist Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
University of Auckland, Mechanical Engineering , Auckland , New Zealand.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The carcinogenic action of crystalline silica: a review of the evidence supporting secondary inflamm...
Next Document:  A comparison between the effectiveness of erythromycin, single-dose clarithromycin and topical fusid...