PMID- 26185790
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150718
LR  - 20200930
IS  - 2384-1621 (Print)
IS  - 2384-1710 (Electronic)
VI  - 19
IP  - 1
DP  - 2015 Apr
TI  - Speech Recognition in Real-Life Background Noise by Young and Middle-Aged Adults 
      with Normal Hearing.
PG  - 39-44
LID - 10.7874/jao.2015.19.1.39 [doi]
AB  - BACKGROUND AND OBJECTIVES: People usually converse in real-life background noise. 
      They experience more difficulty understanding speech in noise than in a quiet 
      environment. The present study investigated how speech recognition in real-life 
      background noise is affected by the type of noise, signal-to-noise ratio (SNR), 
      and age. SUBJECTS AND METHODS: Eighteen young adults and fifteen middle-aged 
      adults with normal hearing participated in the present study. Three types of 
      noise [subway noise, vacuum noise, and multi-talker babble (MTB)] were presented 
      via a loudspeaker at three SNRs of 5 dB, 0 dB, and -5 dB. Speech recognition was 
      analyzed using the word recognition score. RESULTS: 1) Speech recognition in 
      subway noise was the greatest in comparison to vacuum noise and MTB, 2) at the 
      SNR of -5 dB, speech recognition was greater in subway noise than vacuum noise 
      and in vacuum noise than MTB while at the SNRs of 0 and 5 dB, it was greater in 
      subway noise than both vacuum noise and MTB and there was no difference between 
      vacuum noise and MTB, 3) speech recognition decreased as the SNR decreased, and 
      4) young adults showed better speech recognition performance in all types of 
      noises at all SNRs than middle-aged adults. CONCLUSIONS: Speech recognition in 
      real-life background noise was affected by the type of noise, SNR, and age. The 
      results suggest that the frequency distribution, amplitude fluctuation, 
      informational masking, and cognition may be important underlying factors 
      determining speech recognition performance in noise.
FAU - Lee, Ji Young
AU  - Lee JY
AD  - Department of Audiology and Speech-Language Pathology, Catholic University of 
      Daegu, Gyeongsan, Korea. ; Research Institute of Biomimetic Sensory Control, 
      Catholic University of Daegu, Gyeongsan, Korea. ; Catholic Hearing Voice Speech 
      Center, Catholic University of Daegu, Gyeongsan, Korea.
FAU - Lee, Jin Tae
AU  - Lee JT
AD  - Department of Audiology and Speech-Language Pathology, Catholic University of 
      Daegu, Gyeongsan, Korea.
FAU - Heo, Hye Jeong
AU  - Heo HJ
AD  - Department of Audiology and Speech-Language Pathology, Catholic University of 
      Daegu, Gyeongsan, Korea.
FAU - Choi, Chul-Hee
AU  - Choi CH
AD  - Department of Audiology and Speech-Language Pathology, Catholic University of 
      Daegu, Gyeongsan, Korea. ; Research Institute of Biomimetic Sensory Control, 
      Catholic University of Daegu, Gyeongsan, Korea. ; Catholic Hearing Voice Speech 
      Center, Catholic University of Daegu, Gyeongsan, Korea.
FAU - Choi, Seong Hee
AU  - Choi SH
AD  - Department of Audiology and Speech-Language Pathology, Catholic University of 
      Daegu, Gyeongsan, Korea. ; Research Institute of Biomimetic Sensory Control, 
      Catholic University of Daegu, Gyeongsan, Korea. ; Catholic Hearing Voice Speech 
      Center, Catholic University of Daegu, Gyeongsan, Korea.
FAU - Lee, Kyungjae
AU  - Lee K
AD  - Department of Audiology and Speech-Language Pathology, Catholic University of 
      Daegu, Gyeongsan, Korea. ; Research Institute of Biomimetic Sensory Control, 
      Catholic University of Daegu, Gyeongsan, Korea. ; Catholic Hearing Voice Speech 
      Center, Catholic University of Daegu, Gyeongsan, Korea.
LA  - eng
PT  - Journal Article
DEP - 20150417
PL  - Korea (South)
TA  - J Audiol Otol
JT  - Journal of audiology & otology
JID - 101657815
PMC - PMC4491949
OTO - NOTNLM
OT  - Age
OT  - Real-life background noise
OT  - Signal-to-noise ratio
OT  - Speech recognition
OT  - Speech recognition in noise
EDAT- 2015/07/18 06:00
MHDA- 2015/07/18 06:01
PMCR- 2015/04/01
CRDT- 2015/07/18 06:00
PHST- 2014/10/31 00:00 [received]
PHST- 2014/12/17 00:00 [revised]
PHST- 2015/02/27 00:00 [accepted]
PHST- 2015/07/18 06:00 [entrez]
PHST- 2015/07/18 06:00 [pubmed]
PHST- 2015/07/18 06:01 [medline]
PHST- 2015/04/01 00:00 [pmc-release]
AID - 10.7874/jao.2015.19.1.39 [doi]
PST - ppublish
SO  - J Audiol Otol. 2015 Apr;19(1):39-44. doi: 10.7874/jao.2015.19.1.39. Epub 2015 Apr 
      17.