Term of the Week - PCM

PCM stands for Pulse Code Modulation. PCM technology is a means by which standard audio signals (which are represented by waveforms) are converted to digital audio signals (which are represented by 1's and 0's - much like computer data). The method of audio conversion is used on most digital audio formats, including CDs and DVD-Audio, and is also used to some extent in Blu-ray and HD-DVD applications.