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QDU - Quantization Distortion Unit

A particular quantization process will generate quantization noise that affects the quality of the process. Each quantization process is given a Quantization Distortion unit value to indicate the amount of quantization noise generated. PCM (Pulse Code Modulation) generates 1 quantization distortion unit (1qdu).


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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