IEC 62121:2001
Current
The latest, up-to-date edition.
Methods of measurement for minidisc recorders/players
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English - French
18-10-2001
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FOREWORD
1 Scope and object
2 Normative references
3 Terms and definitions
4 Information required from manufacturers of MD
recorders
4.1 Introduction
4.2 Identification
4.3 Mechanical characteristics
4.4 Electrical characteristics
4.5 Environmental conditions
4.6 Mechanical performance requirements
4.7 Electrical performance requirements
4.8 Results of measurement
5 Measuring conditions
5.1 Introduction
5.2 Environmental conditions
5.3 Power supply
5.4 Input conditions
5.5 Output condition
5.6 MD recorder setting
5.7 Other conditions
5.8 Test disc
5.9 Performance claims
5.10 Measuring equipment
5.11 Additional considerations
6 Measurement of mechanical parameters
6.1 Shock and vibration resistance
6.2 Acoustic noise
7 Measurement of electrical parameters
7.1 Maximum power consumption
7.2 Frequency response
7.3 Signal to noise ratio
7.4 Dynamic range
7.5 Distortion and noise
7.6 Channel separation
7.7 Deviation of emphasis characteristic
7.8 Modulation distortion
7.9 Phase difference between channels
7.10 Minimum input level
7.11 Output voltage
7.12 Pitch deviation
7.13 Access times
7.14 Trackability
Annex A (normative) Test disc requirements
Annex B (informative) Table of measurements - Results
Annex C (informative) Available test disc
Figures
Tables
Specifies the measuring methods for recording and reproducing equipment for MiniDiscs that conform to IEC 61909. Lists and defines the characteristics affecting the performance of MiniDisc recorders or players, establishes conditions and methods of measurement of those characteristics, and standardizes the presentation of the results.
| Committee |
TC 100/TA 6
|
| DevelopmentNote |
Stability Date: 2025. (11/2012)
|
| DocumentType |
Standard
|
| Pages |
81
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Standards | Relationship |
| NF EN 62121 : 2002 | Identical |
| NEN EN IEC 62121 : 2002 | Identical |
| I.S. EN 62121:2002 | Identical |
| PN EN 62121 : 2007 | Identical |
| UNE-EN 62121:2001 | Identical |
| BS EN 62121:2001 | Identical |
| CEI EN 62121 : 2002 | Identical |
| EN 62121:2001 | Identical |
| DIN EN 62121:2002-05 | Identical |
| IEC TR 60268-13:1998 | Sound system equipment - Part 13: Listening tests on loudspeakers |
| ISO 3744:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane |
| ISO 1996-2:2017 | Acoustics — Description, measurement and assessment of environmental noise — Part 2: Determination of sound pressure levels |
| IEC 60068-2-27:2008 | Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock |
| ISO 3743-2:1994 | Acoustics Determination of sound power levels of noise sources using sound pressure Engineering methods for small, movable sources in reverberant fields Part 2: Methods for special reverberation test rooms |
| IEC 61909:2000 | Audio recording - Minidisc system |
| IEC 61606:1997 | Audio and audiovisual equipment - Digital audio parts - Basic methods of measurement of audio characteristics |
| IEC 60721-3-5:1997 | Classification of environmental conditions - Part 3: Classificationof groups of environmental parameters and their severities -Section 5: Ground vehicle installations |
| ISO 3740:2000 | Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards |
| IEC 60958:1989 | Digital audio interface |
| ISO 1996-3:1987 | Acoustics Description and measurement of environmental noise Part 3: Application to noise limits |
| ISO 532:1975 | Acoustics Method for calculating loudness level |
| ISO 1996-1:2016 | Acoustics Description, measurement and assessment of environmental noise Part 1: Basic quantities and assessment procedures |
| ISO 3741:2010 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for reverberation test rooms |
| ISO 3745:2012 | Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
| ISO 3743-1:2010 | Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for small movable sources in reverberant fields Part 1: Comparison method for a hard-walled test room |
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