PMID- 19894832
OWN - NLM
STAT- MEDLINE
DCOM- 20100128
LR  - 20211020
IS  - 1520-8524 (Electronic)
IS  - 0001-4966 (Print)
IS  - 0001-4966 (Linking)
VI  - 126
IP  - 5
DP  - 2009 Nov
TI  - Role of binaural hearing in speech intelligibility and spatial release from 
      masking using vocoded speech.
PG  - 2522-35
LID - 10.1121/1.3238242 [doi]
AB  - A cochlear implant vocoder was used to evaluate relative contributions of 
      spectral and binaural temporal fine-structure cues to speech intelligibility. In 
      Study I, stimuli were vocoded, and then convolved through head related transfer 
      functions (HRTFs) to remove speech temporal fine structure but preserve the 
      binaural temporal fine-structure cues. In Study II, the order of processing was 
      reversed to remove both speech and binaural temporal fine-structure cues. Speech 
      reception thresholds (SRTs) were measured adaptively in quiet, and with 
      interfering speech, for unprocessed and vocoded speech (16, 8, and 4 frequency 
      bands), under binaural or monaural (right-ear) conditions. Under binaural 
      conditions, as the number of bands decreased, SRTs increased. With decreasing 
      number of frequency bands, greater benefit from spatial separation of target and 
      interferer was observed, especially in the 8-band condition. The present results 
      demonstrate a strong role of the binaural cues in spectrally degraded speech, 
      when the target and interfering speech are more likely to be confused. The nearly 
      normal binaural benefits under present simulation conditions and the lack of 
      order of processing effect further suggest that preservation of binaural cues is 
      likely to improve performance in bilaterally implanted recipients.
FAU - Garadat, Soha N
AU  - Garadat SN
AD  - Waisman Center, University of Wisconsin, Madison, WI 53705, USA.
FAU - Litovsky, Ruth Y
AU  - Litovsky RY
FAU - Yu, Gongqiang
AU  - Yu G
FAU - Zeng, Fan-Gang
AU  - Zeng FG
LA  - eng
GR  - R01 DC003083/DC/NIDCD NIH HHS/United States
GR  - R29 DC003083/DC/NIDCD NIH HHS/United States
GR  - R01DC030083/DC/NIDCD NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
SB  - IM
MH  - Acoustic Stimulation/methods
MH  - Adult
MH  - Auditory Threshold
MH  - *Cochlear Implants
MH  - Cues
MH  - Deafness/*therapy
MH  - Female
MH  - Humans
MH  - Male
MH  - Noise
MH  - *Perceptual Masking
MH  - *Psychoacoustics
MH  - *Sound Localization
MH  - Speech Acoustics
MH  - *Speech Intelligibility
MH  - Young Adult
PMC - PMC2787072
EDAT- 2009/11/10 06:00
MHDA- 2010/01/29 06:00
PMCR- 2010/11/01
CRDT- 2009/11/10 06:00
PHST- 2009/11/10 06:00 [entrez]
PHST- 2009/11/10 06:00 [pubmed]
PHST- 2010/01/29 06:00 [medline]
PHST- 2010/11/01 00:00 [pmc-release]
AID - 055911JAS [pii]
AID - 10.1121/1.3238242 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2009 Nov;126(5):2522-35. doi: 10.1121/1.3238242.