Delivered Audio Quality, abbreviated as DAQ, is a measure of audio quality over a transmission medium. This metric is often used to quantify the quality of audio heard over a radio system. DAQ levels are defined by the following scale.

  • DAQ 1: Unusable. Speech present but not understandable.
  • DAQ 2: Speech understandable with considerable effort. Requires frequent repetition due to noise or distortion.
  • DAQ 3: Speech understandable with slight effort. Requires occasional repetition due to noise or distortion.
  • DAQ 3.4: Speech understandable without repetition. Some noise or distortion present.
  • DAQ 4: Speech easily understandable. Little noise or distortion.
  • DAQ 5: Perfect. No distortion or noise discernible.

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