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Provides methods for evaluation of hearing assistance device/systems (HADS) that are packaged for individual use and deliver the signal via air conduction to a user. Among the test methods described are family of response curves, output sound pressure curve for 90dB sound pressure level input, frequency range, total harmonic distortion, noise level with no input, static and dynamic AGC characteristics and gain control linearity. Measurements are similar to those described in ANSI-ASA S3.22-2009.
Author | Acoustical Society of America (ASA) |
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Editor | ASA |
Document type | Standard |
Format | File |
Confirmation date | 2014-01-24 |
ICS | 11.180.15 : Aids for deaf and hearing impaired people
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Number of pages | 25 |
Year | 2014 |
Document history | |
Country | USA |
Keyword | ANSI 3;ANSI/ASA S 3;ANSI/ASA 3;3;ANSI/ASA S3.47-2014 |