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 ...
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a process in which a signal is sampled, each sample is quantized independently of other samples, and the resulting succession of quantized values is converted by encoding into a digital signal
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The use of amplitude pulses in magnetic tape to record the digital information bits of digital audio.
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(PCM) a way to convert sound or analog information to binary information (0s and 1s) by taking samples of the sound and record the resulting number as binary information. Used on all CDs, DVD-Audio, and just about every other digital audio format. It can sometimes be found on DVD-Video.
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Pulse Code Modulation (PCM) is the standard method of digitally encording audio. It is the basic uncompressed data format used to record audio CDs, and also by computer formats such as Windows .wav and Applie AIFF.
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Coding where the input signal is represented by a given number of fixed-width samples per second. Often used for the coding employed in the telephone network. See also: Adaptive Differential Pulse Code Modulation.
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A method of quantizing audio-range analog signals into a digital form for transmission in digital communications systems, or for processing in DSP. Effectively the same as analog-to-digital conversion.
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In physics, a form of digital modulation in which radio waves, microwaves, light waves, or other `carrier waves` are switched on and off in pulses of varying length according to a binary code. It is a relatively simple matter to transmit data that are already in binary code, such as those u...
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a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbr.: PCM
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