IEC 60118-2:1983
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Hearing aids. Part 2: Hearing aids with automatic gain control circuits
Hardcopy , PDF
01-01-1983
09-06-2015
FOREWORD
PREFACE
1 Scope
2 Object
3 Conditions
4 Explanation of terms
4.1 Automatic gain control (AGC)
4.2 Steady-state input/output graph
4.3 Lower AGC limit or AGC threshold
4.4 Compression ratio (between specified input sound
pressure level values)
4.5 Dynamic output characteristics
4.6 Attack time
4.7 Recovery time
5 Steady-state input/output graph
5.1 Graph showing the relation between input sound
pressure level and output sound pressure level
5.2 Methods of measurement
6 Dynamic output characteristics
6.1 Characteristics to be measured
6.2 Methods of measurement
7 Non-linear distortion
7.1 Transient
7.2 Harmonic distortion
7.3 Intermodulation distortion
8 Effect on steady-state and dynamic performance with
respect to variation in battery or supply voltage
FIGURES
Gives uniform methods for specifying dynamic and static performance characteristics of hearing aids with automatic gain control circuits together with the relevant methods of measurement for these characteristics.
| DevelopmentNote |
BS DRAFT 94/204034 DC REFERS TO AMD 2 Stability Date: 2013. (10/2012)
|
| DocumentType |
Standard
|
| Pages |
49
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| NF EN 60118-2 : 96 AMD 2 97 | Identical |
| BIS IS 10776-3 : 1984(R2001) | Identical |
| I.S. EN 60118-2:1997 | Identical |
| AS 60118.2-2007 | Identical |
| PN EN 60118-2 : 1999 | Identical |
| NFC 97 610 : 1986 | Identical |
| HD 450.2 : 200S1 | Identical |
| AS 1088.2-1987 | Identical |
| BS EN 60118-2:1996 | Identical |
| DIN IEC 60118-2:1985-06 | Identical |
| NEN 10118-2 : 1995 AMD 2 1997 | Identical |
| BS 6083-2:1984 | Identical |
| CEI 29-5 : 1985 COR 1985 | Identical |
| DIN EN 60118-2:1998-04 | Identical |
| UNE 20603-2:1986 | Identical |
| UNE-EN 60118-2:1997 | Identical |
| BS 6083-2(1996) : 1996 | Identical |
| AS 1038.17-1989 | Identical |
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