In Delta Modulation the Quantization Noise Is?

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.

How noise is produced during quantization?

Quantization noise results when a continuous random variable is converted to a discrete one or when a discrete random variable is converted to one with fewer levels. In images, quantization noise often occurs in the acquisition process. ... As we shall see, quantization noise is usually modeled as uniform.

Which additional noise is introduced in delta modulation?

The two sources of noise in delta modulation are "slope overload", when step size is too small to track the original waveform, and "granularity", when step size is too large. But a 1971 study shows that slope overload is less objectionable compared to granularity than one might expect based solely on SNR measures.