PMID- 28464685
OWN - NLM
STAT- MEDLINE
DCOM- 20190708
LR  - 20190708
IS  - 1520-8524 (Electronic)
IS  - 0001-4966 (Linking)
VI  - 141
IP  - 4
DP  - 2017 Apr
TI  - The localization of non-individualized virtual sounds by hearing impaired 
      listeners.
PG  - 2870
LID - 10.1121/1.4979462 [doi]
AB  - Although many studies have evaluated the performance of virtual audio displays 
      with normal hearing listeners, very little information is available on the effect 
      that hearing loss has on the localization of virtual sounds. In this study, 
      normal hearing (NH) and hearing impaired (HI) listeners were asked to localize 
      noise stimuli with short (250 ms), medium (1000 ms), and long (4000 ms) durations 
      both in the free field and with a non-individualized head-tracked virtual audio 
      display. The results show that the HI listeners localized sounds less accurately 
      than the NH listeners, and that both groups consistently localized virtual sounds 
      less accurately than free-field sounds. These results indicate that HI listeners 
      are sensitive to individual differences in head related transfer functions 
      (HRTFs), which means that they might have difficulty using auditory display 
      systems that rely on generic HRTFs to control the apparent locations of virtual 
      sounds. However, the results also reveal a high correlation between free-field 
      and virtual localization performance in the HI listeners. This suggests that it 
      may be feasible to use non-individualized virtual audio display systems to 
      predict the auditory localization performance of HI listeners in clinical 
      environments where free-field speaker arrays are not available.
FAU - Brungart, Douglas S
AU  - Brungart DS
AD  - National Military Audiology and Speech Pathology Center, Walter Reed National 
      Military Medical Center, 8901 Wisconsin Avenue, Bethesda, Maryland 20889, USA.
FAU - Cohen, Julie I
AU  - Cohen JI
AD  - The Henry M. Jackson Foundation for the Advancement of Military Medicine, 6720A 
      Rockledge Drive, Bethesda, Maryland 20817, USA.
FAU - Zion, Danielle
AU  - Zion D
AD  - National Military Audiology and Speech Pathology Center, Walter Reed National 
      Military Medical Center, 8901 Wisconsin Avenue, Bethesda, Maryland 20889, USA.
FAU - Romigh, Griffin
AU  - Romigh G
AD  - Air Force Research Laboratory, 2610 Seventh Street, Wright Patterson Air Force 
      Base, Ohio 45433, USA.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
SB  - IM
MH  - Acoustic Stimulation/instrumentation
MH  - Acoustics/instrumentation
MH  - Adult
MH  - Auditory Threshold
MH  - Case-Control Studies
MH  - Female
MH  - Head Movements
MH  - Hearing Loss, Sensorineural/diagnosis/physiopathology/*psychology
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Persons With Hearing Impairments/*psychology
MH  - Reaction Time
MH  - *Sound Localization
EDAT- 2017/05/04 06:00
MHDA- 2019/07/10 06:00
CRDT- 2017/05/04 06:00
PHST- 2017/05/04 06:00 [entrez]
PHST- 2017/05/04 06:00 [pubmed]
PHST- 2019/07/10 06:00 [medline]
AID - 10.1121/1.4979462 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2017 Apr;141(4):2870. doi: 10.1121/1.4979462.