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BSI 19/30403994 DC:2019 Edition

BSI 19/30403994 DC:2019 Edition

$13.70

BS EN 63219. Definition and verification of hearing aid features

Published By Publication Date Number of Pages
BSI 2019 23
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PDF Catalog

PDF Pages PDF Title
6 FOREWORD
8 1 Scope
2 Normative references
3 Terms and definitions
11 4 Application to non air conduction hearing aids
5 Examples of test signals for common listening situations
12 6 Verification of noise reduction
6.1 Noise reduction for speech enhancement
6.2 Gain reduction for noise
13 7 Strategies of hearing aid programs and their verification
7.1 Manual selection of hearing aid programs
7.1.1 Description
7.1.2 Verification
14 7.2 Automatic selection of hearing aid programs
7.2.1 Description
7.2.2 Verification of configurable hearing aid programs
15 7.2.3 Verification of not-configurable hearing aid programs
8 Verification of feedback reduction
8.1 Introduction
8.2 Coupling of the hearing aid
16 8.3 Measurement procedure
8.4 Post processing
17 9 Verification of the number of hearing aid channels
9.1 Visualization of the effect of multichannel signal processing
18 9.2 Evaluation of the number of independent channels
19 10 Verification of an output limiter
20 Annex A (informative) Coupling of the hearing aid to the coupler in order to provoke feedback
A.1 Air conduction hearing aids
A.1.1 Simplified coupling of air conduction hearing aids to the 2 cm³ acoustic coupler
21 A.1.2 Head and torso simulator with vented ear canal extension
23 Bibliography

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BSI 19/30403994 DC
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