• 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