PMID- 28464634
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 1520-8524 (Electronic)
IS  - 0001-4966 (Linking)
VI  - 141
IP  - 4
DP  - 2017 Apr
TI  - Sound localization models as evaluation tools for tactical communication and 
      protective systems.
PG  - 2637
LID - 10.1121/1.4979693 [doi]
AB  - Tactical Communication and Protective Systems (TCAPS) are hearing protection 
      devices that sufficiently protect the listener's ears from hazardous sounds and 
      preserve speech intelligibility. However, previous studies demonstrated that 
      TCAPS still deteriorate the listener's situational awareness, in particular, the 
      ability to locate sound sources. On the horizontal plane, this is mainly 
      explained by the degradation of the acoustical cues normally preventing the 
      listener from making front-back confusions. As part of TCAPS development and 
      assessment, a method predicting the TCAPS-induced degradation of the sound 
      localization capability based on electroacoustic measurements would be more 
      suitable than time-consuming behavioral experiments. In this context, the present 
      paper investigates two methods based on Head-Related Transfer Functions (HRTFs): 
      a template-matching model and a three-layer neural network. They are optimized to 
      fit human sound source identification performance in open ear condition. The 
      methods are applied to HRTFs measured with six TCAPS, providing identification 
      probabilities. They are compared with the results of a behavioral experiment, 
      conducted with the same protectors, and which ranks the TCAPS by type. The neural 
      network predicts realistic performances with earplugs, but overestimates errors 
      with earmuffs. The template-matching model predicts human performance well, 
      except for two particular TCAPS.
FAU - Joubaud, Thomas
AU  - Joubaud T
AD  - Acoustics and Protection of the Soldier, French-German Research Institute of 
      Saint-Louis, 5 rue du General Cassagnou, BP 70034, 68301 Saint-Louis, France.
FAU - Zimpfer, Veronique
AU  - Zimpfer V
AD  - Acoustics and Protection of the Soldier, French-German Research Institute of 
      Saint-Louis, 5 rue du General Cassagnou, BP 70034, 68301 Saint-Louis, France.
FAU - Garcia, Alexandre
AU  - Garcia A
AD  - Laboratoire de Mecanique des Structures et des Systemes Couples, Conservatoire 
      National des Arts et Metiers, 292 rue Saint-Martin, 75141 Paris Cedex 03, France.
FAU - Langrenne, Christophe
AU  - Langrenne C
AD  - Laboratoire de Mecanique des Structures et des Systemes Couples, Conservatoire 
      National des Arts et Metiers, 292 rue Saint-Martin, 75141 Paris Cedex 03, France.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Acoust Soc Am
JT  - The Journal of the Acoustical Society of America
JID - 7503051
EDAT- 2017/05/04 06:00
MHDA- 2017/05/04 06:01
CRDT- 2017/05/04 06:00
PHST- 2017/05/04 06:00 [entrez]
PHST- 2017/05/04 06:00 [pubmed]
PHST- 2017/05/04 06:01 [medline]
AID - 10.1121/1.4979693 [doi]
PST - ppublish
SO  - J Acoust Soc Am. 2017 Apr;141(4):2637. doi: 10.1121/1.4979693.