AUDIO AND AUDIOVISUAL EQUIPMENT - DIGITAL AUDIO PARTS - BASIC MEASUREMENT METHODS OF AUDIO CHARACTERISTICS - PART 1: GENERAL
International Electrotechnical Committee
FOREWORD
1 Scope
2 Normative references
3 Terms, definitions, explanations and rated values
3.1 Terms and definitions
3.2 Explanation of term 'jitter'
3.3 Rated values
4 Measuring conditions
4.1 Environmental conditions
4.2 Power supply
4.2.1 Supply voltage
4.2.2 Frequency(ies)
4.2.3 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 the EUT
4.4.2 Standard output conditions for the EUT
4.4.3 Standard setting of controls
4.5 Preconditioning
4.6 Measuring instruments
4.6.1 General
4.6.2 Signal generator
4.6.3 Filter
4.6.4 Level meter
4.6.5 Distortion meter
4.6.6 Frequency meter
4.6.7 Group delay meter
4.6.8 Analogue spectrum analyzer
4.6.9 Digital waveform monitor
4.6.10 Voltage amplifier
4.6.11 Standard digital player
5 Methods of measurement (digital-in/analogue-out)
5.1 General
5.2 Input/output characteristics
5.2.1 Maximum output amplitude
5.2.2 Gain difference between channels and tracking
error
5.3 Frequency characteristics
5.3.1 Frequency response
5.3.2 Group delay (phase linearity)
5.4 Noise characteristics
5.4.1 Signal-to-noise ratio (idle channel noise)
5.4.2 Dynamic range
5.4.3 Out-of-band noise ratio
5.4.4 Channel separation
5.5 Distortion characteristics
5.5.1 Level non-linearity
5.5.2 Distortion and noise
5.5.3 Intermodulation
6 Methods of measurement (analogue-in/digital-out)
6.1 General
6.2 Input/output characteristics
6.2.1 Analogue to digital level calibration
6.2.2 Maximum allowable input amplitude
6.2.3 Gain difference between channel and tracking
error
6.3 Frequency characteristics
6.3.1 Frequency response
6.3.2 Group delay
6.4 Noise characteristics
6.4.1 Signal-to-noise ratio (idle channel noise)
6.4.2 Dynamic range
6.4.3 Folded noise
6.4.4 Cross-talk
6.4.5 Channel separation
6.5 Distortion characteristics
6.5.1 Level non-linearity
6.5.2 Distortion and noise
6.5.3 Intermodulation
Bibliography
Applies to the basic methods of measurement of the audio characteristics of the digital audio part of audio and audiovisual equipment for all of consumer use, professional use and personal computer.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 100 |
