Subject: Re: [AUDITORY] Noise cancellation earbuds From: Sandra Gordon-Salant <sgsalant@xxxxxxxx> Date: Wed, 24 Oct 2018 10:36:03 -0400 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--000000000000548f730578fa6afa Content-Type: text/plain; charset="UTF-8" We evaluated the attenuation provided by Etymotic HF5 noise-isolating earphone (cost < $150) in a sound-attenuating chamber using three different ear tips provided by the manufacturer. We measured speech recognition thresholds (SRTs) using spondee words in the sound field with both ears of the subject plugged by the ear tips. Four participants were evaluated. The eartips evaluated were the Etymotic Research ER38-15SM 3-Flange Ear tips (size small), ER38-18 Large 3-Flange Ear tips, and the ER38-14F Standard Black Foam Ear tips. The foam ear tips provided the most attenuation, which is approximately 20 dB. Hope this is helpful. Sandy Sandra Gordon-Salant, Ph.D. Professor and Director, Doctoral Program in Clinical Audiology Department of Hearing and Speech Sciences University of Maryland 0100 Lefrak Hall 7251 Preinkert Drive College Park, MD 20742 http://www.umdhearinglab.com/ On Tue, Oct 23, 2018 at 12:14 PM, Brian Gygi <bgygi@xxxxxxxx> wrote: > Hi, my sister is very easily distracted by noise, esp. in the office where > she works, and she wants some suggestions for good noise cancellation > earphones. She'd like to spend less $150, and is willing to get used ones. > So if any of you know of some good models, and places to get them for under > that amount, please let me know! > > Thanks in advance, > > Brian Gygi > --000000000000548f730578fa6afa Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"> <span style=3D"font-size:12pt;font-family:"Times New Roman",serif= ">We evaluated the attenuation provided by Etymotic HF5 noise-isolating ear= phone (cost < $150) in a sound-attenuating chamber using three different ear tips provided by the manufacturer.<span>=C2=A0 </span>We measured speec= h recognition thresholds (SRTs) using spondee words in the sound field with both ears of the subject plugged by the ear tips. Four participants were evaluated.<span>=C2= =A0 The eartips evaluated were=C2=A0</span>the Etymotic Research ER38-15SM 3-Flange Ear tips (size small), ER38-18 Large 3-Flange Ear tips, = and the ER38-14F Standard Black Foam Ear tips.<span>=C2=A0 </span><span>=C2=A0</span>The foam ear tips provided the most attenuation, = which is approximately 20 dB.<span>=C2=A0 </span></span> <br><div><span style=3D"font-size:12pt;font-family:"Times New Roman&qu= ot;,serif"><span><br></span></span></div><div><span style=3D"font-size:12pt= ;font-family:"Times New Roman",serif"><span>Hope this is helpful.= </span></span></div><div><span style=3D"font-size:12pt;font-family:"Ti= mes New Roman",serif"><span><br></span></span></div><div><span style= =3D"font-size:12pt;font-family:"Times New Roman",serif"><span>San= dy</span></span></div></div><div class=3D"gmail_extra"><br clear=3D"all"><d= iv><div class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div d= ir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div>Sandra Gordon-S= alant, Ph.D.</div><div>Professor and Director,</div><div>Doctoral Program i= n Clinical Audiology</div><div>Department of Hearing and Speech Sciences</d= iv><div>University of Maryland</div><div>0100 Lefrak Hall</div><div>7251 Pr= einkert Drive</div><div>College Park, MD 20742</div><div><br></div><div><a = href=3D"http://www.umdhearinglab.com/" target=3D"_blank">http://www.umdhear= inglab.com/</a></div></div></div></div></div></div></div></div> <br><div class=3D"gmail_quote">On Tue, Oct 23, 2018 at 12:14 PM, Brian Gygi= <span dir=3D"ltr"><<a href=3D"mailto:bgygi@xxxxxxxx" target=3D"_blank"= >bgygi@xxxxxxxx</a>></span> wrote:<br><blockquote class=3D"gmail_quote"= style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u= ></u> =20 <div><p class=3D"m_8864195124797526183default-style">Hi, my sister is very = easily distracted by noise, esp. in the office where she works, and she wan= ts some suggestions for good noise cancellation earphones. She'd like t= o spend less $150, and is willing to get used ones. So if any of you know o= f some good models, and places to get them for under that amount, please le= t me know!</p><p class=3D"m_8864195124797526183default-style">Thanks in adv= ance,</p><p class=3D"m_8864195124797526183default-style">Brian Gygi</p></di= v> =20 </blockquote></div><br></div> --000000000000548f730578fa6afa--