PCM redirects here. For other uses, see PCM (disambiguation). 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.
1 APA guidelines recommend you to use readable and clear font, such as Times New Roman, 12 pt.  The main distinction of APA style is a ârunning headâ at the top of each page. To create this header, type the âTITLE OF PAPERâ (yes, using caps lock) in the flush the left side of the page. The page numbers should be on the right side.
APA format is essentially a set of rules that must be followed when structuring and formatting the literature review. Page layout and formatting â Standard 1 inch margin on all four sides of the page. Page number on the top right of each page. Header of abbreviated title on each page.