I.S. EN 61606:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
AUDIO AND AUDIOVISUAL EQUIPMENT - DIGITAL AUDIO PARTS - BASIC METHODS OF MEASUREMENT OF AUDIO CHARACTERISTICS
Hardcopy , PDF
03-26-2004
English
01-01-1999
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
1 General
1.1 Scope
1.2 Normative references
2 Definitions, explanation of terms and abbreviations
2.1 Definitions
2.2 Explanation of terms
2.3 Abbreviation
3 Measuring conditions
3.1 Environmental conditions
3.2 Power supply
3.3 Test signal
3.4 Test signal source
3.5 Standard input conditions for the EUT
3.6 Standard output conditions for the EUT
3.7 Standard settings of controls
3.8 Pre-conditioning
3.9 Test instruments
4 Methods of measurement (digital in/analogue out)
4.1 Output source impedance
4.2 Output voltage and power
4.3 Frequency response
4.4 Gain difference between channels
4.5 Phase difference between channels
4.6 Phase linearity
4.7 Total delay through the EUT
4.8 Polarity
4.9 Level non-linearity
4.10 Distortion and noise
4.11 Dynamic range
4.12 Idle channel noise level (signal-to-noise ratio)
4.13 Intermodulation distortion
4.14 Out-of-band noise ratio
4.15 Stereophonic separation
5 Classification of the characteristics to be specified
Tables
1 Frequencies used for measurements
2 Pass band of typical 1/2 fs filters unless otherwise
specified
3 Pass band of out-of-band filters
4 Measurement frequencies for band pass filters (Hz)
5 Example of the presentation of the measured values
6 Classification of the characteristics to be specified
Figures
1 Waveform
2 Circuit arrangement for measuring output source impedance
3 Circuit arrangement for measuring output voltage
and power
4 Circuit arrangement for measuring frequency response
5 Circuit arrangement for measuring phase difference
6 Circuit arrangement for measuring total delay
7 Circuit arrangement for measuring polarity
8 Circuit arrangement for measuring non-linearity
9 Circuit arrangement for measuring distortion and
noise
10 Circuit arrangement for measuring dynamic range
11 Circuit arrangement for measuring idle channel noise
level
12 Circuit arrangement for measuring stereophonic
separation
Annexes
A Compact disc test discs
B Bibliography
ZA (normative) Normative references to international
publications with their corresponding European
publications
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