PCM - method of analog to digital conversion
Introduction
Today my topic is Pulse Code Modulation or PCM- a method used to convert analog signals to digital signals.
PCM consists of three steps: sampling, quantizing, and encoding. PCM may sound very complicated because it involves many big words, such as pulse, amplitude, modulation, sampling, sample rate, quantization or quantizing process, bit depth, and so so, but it is actually a very simple process if you take it apart and look closely one step a time.

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