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pulse code mod·u·la·tion

/ˌpəls ˌkōd ˌmäjəˈlāSHən/

noun
- 1. a pulse modulation technique in which the amplitude of an analog signal is converted to a binary value represented as a series of pulses.
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Pulse-code modulation
Pulse-code modulation (PCM) is a method used to digitally represent 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 at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps. Linear pulse-code modu... Wikipedia
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