Quantizing noise in delta modulation systems falls into two categories, granular noise and slope overload noise. Granular noise exists because the decoded output signal can assume only a specified number of levels in the range of interest. Slope overload noise occurs when the slope of the input ...
In speech communication systems, it is often desired to transmit a speech signal in digital form to provide secure communication or to improve the intelligibility of the signal in the presence of noise. Analog-to-digital conversion of the speech signal generally requires the signal to be sampled ...