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.
Check out this gallery of examples, tips, and guidelines for writing papers in APA format. Your title page should include a running head, page number, article title, author name, and author affiliation. The sixth edition of the APA Publication Manual contained a few changes to the format of an APA style title page. Your title page should contain a running head that is flush left at the top of the page and a page number that is flush right at the top of the page.