ADPCM meaning in Computer and Networking ?

Answer:

What is Adaptive Differential PCM mean?

Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps.

Linear pulse-code modulation (LPCM) is a specific type of PCM in which the quantization levels are linearly uniform. This is in contrast to PCM encodings in which quantization levels vary as a function of amplitude (as with the A-law algorithm or the μ-law algorithm). Though PCM is a more general term, it is often used to describe data encoded as LPCM.

A PCM stream has two basic properties that determine the stream's fidelity to the original analog signal: the sampling rate, which is the number of times per second that samples are taken; and the bit depth, which determines the number of possible digital values that can be used to represent each sample.

reference

Full Form	Category
Adaptive Differential PCM	Computer and Networking
Adaptive Delta Pulse Code Modulation	Computing
Adaptive Data Pulse Code Modulation	Computing
Intel/ Dvi Adaptive Differential Pulse Code Modulation Sound Format	File Type
Adaptive Differential Pulse Coded Modulation	General
Adaptive Differential Pulse Code Modulation	Telecommunication