PMID- 11386557
OWN - NLM
STAT- MEDLINE
DCOM- 20010802
LR  - 20190515
IS  - 0001-4966 (Print)
IS  - 0001-4966 (Linking)
VI  - 109
IP  - 5 Pt 1
DP  - 2001 May
TI  - Emphasis of short-duration acoustic speech cues for cochlear implant users.
PG  - 2049-61
AB  - A new speech-coding strategy for cochlear implant users, called the transient 
      emphasis spectral maxima (TESM), was developed to aid perception of 
      short-duration transient cues in speech. Speech-perception scores using the TESM 
      strategy were compared to scores using the spectral maxima sound processor (SMSP) 
      strategy in a group of eight adult users of the Nucleus 22 cochlear implant 
      system. Significant improvements in mean speech-perception scores for the group 
      were obtained on CNC open-set monosyllabic word tests in quiet (SMSP: 53.6% TESM: 
      61.3%, p<0.001), and on MUSL open-set sentence tests in multitalker noise (SMSP: 
      64.9% TESM: 70.6%, p<0.001). Significant increases were also shown for consonant 
      scores in the word test (SMSP: 75.1% TESM: 80.6%, p<0.001) and for vowel scores 
      in the word test (SMSP: 83.1% TESM: 85.7%, p<0.05). Analysis of consonant 
      perception results from the CNC word tests showed that perception of nasal, stop, 
      and fricative consonant discrimination was most improved. Information 
      transmission analysis indicated that place of articulation was most improved, 
      although improvements were also evident for manner of articulation. The increases 
      in discrimination were shown to be related to improved coding of short-duration 
      acoustic cues, particularly those of low intensity.
FAU - Vandali, A E
AU  - Vandali AE
AD  - Cooperative Research Centre for Cochlear Implant and Hearing Aid Innovation, East 
      Melbourne, Australia. a.vandali@medoto.unimelb.edu.au
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
SB  - IM
MH  - Adult
MH  - *Cochlear Implantation
MH  - *Cues
MH  - Deafness/*rehabilitation
MH  - Humans
MH  - Noise
MH  - Phonetics
MH  - Random Allocation
MH  - Sound Spectrography
MH  - Speech/*physiology
MH  - *Speech Acoustics
MH  - Speech Perception/*physiology
MH  - Time Factors
EDAT- 2001/06/02 10:00
MHDA- 2001/08/03 10:01
CRDT- 2001/06/02 10:00
PHST- 2001/06/02 10:00 [pubmed]
PHST- 2001/08/03 10:01 [medline]
PHST- 2001/06/02 10:00 [entrez]
AID - 10.1121/1.1358300 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2001 May;109(5 Pt 1):2049-61. doi: 10.1121/1.1358300.