slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
hearingcrc PowerPoint Presentation
Download Presentation
hearingcrc

Loading in 2 Seconds...

play fullscreen
1 / 12

hearingcrc - PowerPoint PPT Presentation


  • 90 Views
  • Uploaded on

Spatial release from masking deficits in hearing-impaired people: Is inadequate audibility the problem? Helen Glyde 1,2,3 , Jörg Buchholz 1,2 , Lillian Nielsen 2 , Virginia Best 1,2 , Harvey Dillon 1,2 , Sharon Cameron 1,2 , & Louise Hickson 1,3

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'hearingcrc' - yuli-ramos


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Spatial release from masking deficits in hearing-impaired people: Is inadequate audibility the problem?

Helen Glyde1,2,3, Jörg Buchholz 1,2, Lillian Nielsen 2, Virginia Best 1,2, Harvey Dillon 1,2, Sharon Cameron 1,2, & Louise Hickson 1,3

1. HEARing CRC, 2. National Acoustic Laboratories, 3. University of Queensland

XXXII World Congress of Audiology, Brisbane, 2014

creatingsoundvalueTM

www.hearingcrc.org

slide2

Background

  • Spatially separating speech from distracting noise typically results in improved speech understanding.
  • Referred to as spatial release from masking (SRM)
  • SRM can be measured clinically using the Listening in Spatialized Noise – Sentences Test (LiSN-S)
slide3

Background

  • Previous research suggested SRM declines with hearing loss.

Spatial release from masking (dB)

Glyde et al (2013)

slide4

Why?

  • Poor temporal resolution?
  • Poor frequency resolution?
  • Inadequate audibility?
slide5

Aim

  • To determine whether inadequate audibility could explain the apparent relationship between SRM and hearing loss.
slide7

Method

Same Voice - 0° Condition

Low cue

Spatial Release From Masking

Same Voice - ±90° Condition

slide10

Results - Data

  • Sig. improvement in SRM with increase in audibility (p ranging from < 0.001 to 0.047)

Sim. HI group

HI group

  • NH performance remains sig. better than HI performance at all levels of audibility (p ranging from 0.001 to 0.011)
slide11

Conclusion

  • Inadequate audibility explains the majority of the difference in SRM measured between NH and HI adults.
  • Improving audibility allows HI adults to gain greater benefit from spatial separation.
  • An amplification strategy which increases audibility but is practical for use in everyday life may improve speech understanding in noise.
slide12

creatingsoundvalueTM

Thanks for listening

Acknowledgements

This research was financially supported by the HEARing CRC established and supported under the Australian Government’s Cooperative Research Centres Program.