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• A rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value. 2. A rapid change in some characteristic of a signal, e.g., phase or frequency, from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.

  

  
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• Browse Related Terms: acoustic noise, amplitude equalizer, delay equalizer, fading, grade of service (GOS), hiss, psophometer, tolerance

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