ASA S3.35 2010 R2015
$91.54
ANSI/ASA S3.35-2010 (R2015) American National Standard Method of Measurement of Performance Characteristics of Hearing Aids Under Simulated Real-Ear Working Conditions
| Published By | Publication Date | Number of Pages |
| ASA | 2010 | 49 |
None
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms and definitions |
| 16 | 4 Test equipment 4.1 Data acquisition 4.2 Test space |
| 17 | 4.3 Sound source |
| 18 | 4.4 Manikin 4.5 Ear simulator 4.6 Equipment for the measurement of simulator sound pressure level |
| 19 | 4.7 Equipment for automatic sweep frequency recording 4.8 Equipment for measurement of free field sound pressure level 4.9 Equipment for measurement of directional response |
| 20 | 5 Test conditions 5.1 Choice of test point 5.2 Ambient conditions |
| 21 | 5.3 Manikin 5.4 Location of the hearing aid 5.5 Normal operating conditions for the hearing aid when no other conditions are prescribed |
| 22 | 6 Measurements 6.1 General 6.2 Adjustment of the reference SPL |
| 23 | 6.3 Simulated insertion gain |
| 24 | 6.4 SREA90 measurements |
| 25 | 6.5 Directional characteristics |
| 30 | 7 Charts 7.1 Frequency response and directivity index charts 7.2 Directional response charts (polar plots |
| 31 | Annex A (normative) Higher density measures of directional characteristics A.1 Introduction |
| 34 | Annex B (informative) Justification of directivity index measurement method B.1 Introduction |
| 36 | B.2 Diffuse sound field B.3 Simulated diffuse sound field |
| 46 | Annex C (informative) Directivity index averages C.1 Introduction C.2 Speech perception weighting |
| 48 | C.3 Unweighted average |
