NF EN 61606-1 : 2005

1 Scope
2 Normative references
3 Terms, definitions, explanations and rated values
4 Measuring conditions
   4.1 Environmental conditions
   4.2 Power supply
       4.2.1 Supply voltage
       4.2.2 Frequency(ies)
       4.3.3 High-frequency and harmonic components
              (or ripples) in the power supply output
   4.3 Test signal frequencies
   4.4 Standard setting
       4.4.1 Standard input conditions for EUT
       4.4.2 Standard output conditions for the EUT
       4.4.3 Standard setting of controls input terminals,
              and output terminals
   4.5 Preconditioning
   4.6 Measuring instruments
       4.6.1 Signal generator
       4.6.2 Filter
       4.6.3 Level meter
       4.6.4 Distortion meter
       4.6.5 Frequency meter
       4.6.6 Group delay meter
       4.6.7 Analogue spectrum analyser
       4.6.8 Digital waveform monitor
       4.6.9 Voltage amplifier
       4.6.10 Standard digital player
5 Methods of measurement (digital-in/analogue-out)
   5.1 Input/Output characteristics
       5.1.1 Maximum output amplitude
       5.1.2 Gain difference between channels and tracking error
   5.2 Frequency characteristics
       5.2.1 Frequency response
       5.2.2 Group delay (phase linearity)
   5.3 Noise characteristics
       5.3.1 Signal-to-noise ratio (idle channel noise)
       5.3.2 Dynamic range
       5.3.3 Out-of-band noise ratio
       5.3.4 Channel separation
   5.4 Distortion characteristics
       5.4.1 Level non-linearity
       5.4.2 Distortion and noise
       5.4.3 Intermodulation
6 Methods of measurement (analogue-in/digital-out)
   6.1 Input/output characteristics
       6.1.1 Analogue to digital level calibration
       6.1.2 Maximum allowable input amplitude
       6.1.3 Gain difference between channel and tracking error
   6.2 Frequency characteristics
       6.2.1 Frequency response
       6.2.2 Group delay
   6.3 Noise characteristics
       6.3.1 Signal-to-noise ratio (idle channel noise)
       6.3.2 Dynamic range
       6.3.3 Folded noise
       6.3.4 Cross-talk
       6.3.5 Channel separation
   6.4 Distortion characteristics
       6.4.1 Level non-linearity
       6.4.2 Distortion and noise
       6.4.3 Intermodulation
Figures
Tables
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications

Specifies the basic methods of measurement of the audio characteristics of the digital audio part of audio and audiovisual equipment for both consumer and professional use.