CCITT Rec. O.133 (11/1988) – EQUIPMENT FOR MEASURING THE PERFORMANCE OF PCM ENCODERS AND DECODERS
1 Introduction
2 General
2.1 Measuring functions and physical configuration
2.2 Measuring accuracy and compatibility objectives
2.3 Measurement capabilities
3 Instrument specifications
3.1 Interfaces
3.2 Analogue signal generator
3.3 Analogue signal analyzer
3.4 Digital signal generator
3.5 Digital signal analyzer
4 Measuring accuracy
4.1 Definition of the error limits of the measuring instrumentation
4.2 Summary of total measuring errors
5 Operating environment
ANNEX A (to Recommendation O.133) Intrinsic errors in the PCM encoding process which may affect the interpretation of measured results
A.1 Introduction
A.2 Measurement of gain and variation of gain with input level
A.3 Quantizing distortion measurements
A.4 General notes to tables and graphs
References