Re: [AUDITORY] Noise cancellation earbuds

[Sandra Gordon-Salant <sgsalant@xxxxxxx>]

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@xxxxxxxxx> 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