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008 100322s2010 mdua eob f000 0 eng d;

027 a| ARL-TR-5075;

029 0 a| DTICEb| ADA514651;

035 a| (Sirsi) o610006294;

049 a| ERE#;

074 a| 0324-A-01 (online);

086 0 a| D 101.133:5075;

100 1 a| Henry, Paula Patricia.=| ^A1035520;

245 10 a| Evaluation of auditory characteristics of communications and hearing protection systems (C&HPSs) :b| part II, speech intelligibility /c| by Paula Henry and Rachel Weatherless.;

260 a| Aberdeen Proving Ground, MD :b| Army Research Laboratory,c| [2010];

300 a| 1 online resource (vi, 14 pages) :b| color illustrations.;

336 a| text2| rdacontent;

337 a| computer2| rdamedia;

338 a| online resource2| rdacarrier;

490 1 a| ARL-TR ;v| 5075;

500 a| "January 2010.";

500 a| Title from title screen (viewed on Mar. 10, 2011).;

504 a| Includes bibliographical references.;

500 a| Final rept. Aug 2007-Sep 2009.;

506 a| APPROVED FOR PUBLIC RELEASE.;

520 a| Devices that provide hearing protection, situational awareness, and radio communications are often referred to as Communications and Hearing Protection Systems (C & HPSs). Soldiers use these systems while deployed to navigate within their environment, communicate with their team members, and protect their hearing. Each of the three features of select C & HPSs (hearing protection, speech communication, and situational awareness) was evaluated by the U.S. Army Research Laboratory in order to obtain data that is independent from that provided by the manufacturer. This report is the second in a series of three and focuses on the speech intelligibility performance obtained from two commercially available C & HPSs: Nacre QuietPro and Silynx QuietOps selected from three C & HPSs evaluated for attenuation characteristics in the first report. Results of the speech intelligibility testing indicated that the Silynx QuietOps provides a significantly higher degree of speech intelligibility, but this difference is probably not significant for field applications. The differences noted in speech intelligibility are likely due to a combination of differences in the frequency responses measured from the two systems and differences in the frequency responses of the microphones from the two systems, along with small differences in the output intensity of the speech items provided to the listeners.;

650 0 a| Acoustic traumax| Prevention.=| ^A586456;

650 0 a| Communications, Militaryx| Equipment and suppliesx| Evaluation.=| ^A628243;

650 17 a| Anatomy and physiology.2| scgdst;

650 27 a| Radio communications.2| scgdst;

650 17 a| Communication and radio systems.2| dtict;

650 17 a| Hearing.2| dtict;

650 17 a| Frequency response.2| dtict;

650 17 a| Speech.2| dtict;

650 27 a| Teams(personnel)2| scgdst;

650 27 a| Intensity.2| scgdst;

650 27 a| Protection.2| scgdst;

650 27 a| Attenuation.2| scgdst;

650 27 a| Voice communications.2| scgdst;

650 27 a| Field conditions.2| scgdst;

650 27 a| Test and evaluation.2| scgdst;

650 27 a| Intelligibility.2| scgdst;

650 27 a| Awareness.2| scgdst;

650 27 a| Army personnel.2| scgdst;

650 27 a| Army research.2| scgdst;

650 27 a| Output.2| scgdst;

650 27 a| Microphones.2| scgdst;

653 2 a| HEARING PROTECTION;

653 2 a| COMMUNICATIONS AND HEARING PROTEIN SYSTEMS;

653 2 a| SPEECH INTELLIGIBILITY;

653 2 a| C & HPS(COMMUNICATIONS AND HEARING PROTEIN SYSTEMS);

653 2 a| SITUATIONAL AWARENESS;

653 2 a| PE62716A;

700 1 a| Weatherless, Rachel.?| UNAUTHORIZED;

710 2 a| U.S. Army Research Laboratory.=| ^A367731;

830 0 a| ARL-TR (Aberdeen Proving Ground, Md.) ;v| 5075.=| ^A566074;

856 40 u| https://purl.fdlp.gov/GPO/gpo4337;

856 40 u| http://handle.dtic.mil/100.2/ADA514651;

949 a| Click on web addressw| ASISh| JOYNER94;

998 a| 2655370;

998 a| u2655370;

596 a| 1;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 2655370-1001l| JNETm| JOYNERr| Ys| Yt| JNE1DOu| 12/19/2011x| EDOCUMENTz| JERESOURCE;

Evaluation of auditory characteristics of communications and hearing protection systems (C&HPSs) : part II, speech intelligibility / by Paula Henry and Rachel Weatherless.

Author/creator	Henry, Paula Patricia
Other author	Weatherless, Rachel.
Other author	U.S. Army Research Laboratory.
Format	Electronic
Publication Info	Aberdeen Proving Ground, MD : Army Research Laboratory, [2010]
Description	1 online resource (vi, 14 pages) : color illustrations.
Supplemental Content	https://purl.fdlp.gov/GPO/gpo4337
Supplemental Content	http://handle.dtic.mil/100.2/ADA514651
Subjects	Acoustic trauma--Prevention. Communications, Military--Equipment and supplies. --Evaluation.

Series	ARL-TR ; 5075 ARL-TR (Aberdeen Proving Ground, Md.) ; 5075. ^A566074
Abstract	Devices that provide hearing protection, situational awareness, and radio communications are often referred to as Communications and Hearing Protection Systems (C & HPSs). Soldiers use these systems while deployed to navigate within their environment, communicate with their team members, and protect their hearing. Each of the three features of select C & HPSs (hearing protection, speech communication, and situational awareness) was evaluated by the U.S. Army Research Laboratory in order to obtain data that is independent from that provided by the manufacturer. This report is the second in a series of three and focuses on the speech intelligibility performance obtained from two commercially available C & HPSs: Nacre QuietPro and Silynx QuietOps selected from three C & HPSs evaluated for attenuation characteristics in the first report. Results of the speech intelligibility testing indicated that the Silynx QuietOps provides a significantly higher degree of speech intelligibility, but this difference is probably not significant for field applications. The differences noted in speech intelligibility are likely due to a combination of differences in the frequency responses measured from the two systems and differences in the frequency responses of the microphones from the two systems, along with small differences in the output intensity of the speech items provided to the listeners.
General note	"January 2010."
General note	Title from title screen (viewed on Mar. 10, 2011).
General note	Final rept. Aug 2007-Sep 2009.
Bibliography note	Includes bibliographical references.
Access restriction	APPROVED FOR PUBLIC RELEASE.
Technical rpt#	ARL-TR-5075
GPO item number	0324-A-01 (online)
Govt. docs number	D 101.133:5075

Availability

Library	Location	Call Number	Status	Item Actions
	Electronic Resources	Online Content https://purl.fdlp.gov/GPO/gpo4337 http://handle.dtic.mil/100.2/ADA514651	✔ Available

Evaluation of auditory characteristics of communications and hearing protection systems (C&HPSs) : part II, speech intelligibility / by Paula Henry and Rachel Weatherless.

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