ASA
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-40%Testing Hearing Aids - Part 2: Methods for characterizing signal processing in hearing aids with a speech-like signal (a nationally adopted international standard)
Published by Publication Date Number of Pages ASA 09/20/2012 40 ASA S3.42 Part 2
Original price was: $202.00.$121.20Current price is: $121.20. -
Sale!
-40%American National Standard - Acoustics - Estimation of Noise-induced Hearing Loss - Part 1: Method for Calculating Expected Noise-induced Permanent Threshold Shift (a modified nationally adopted international standard)
Published by Publication Date Number of Pages ASA 03/04/2016 40 ASA S3.44 Part 1
Original price was: $117.00.$70.20Current price is: $70.20.