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. Quantization Noise occurs in PCM.

project\pcmproject.asv
.......\pcmproject.m
.......\sample.wav
project
.......\voice_enryption.asv
.......\voice_enryption.m
.......\what.wav

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