Humans evolved eating both plant foods and animal foods. By completely eliminating either, we risk becoming deficient in key nutrients. This article lists 7 nutrients that you can not get from commonly consumed plant foods.
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.
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. The PCM signal is converted back to analog form for distribution to loudspeakers.PCM, although digital in nature, should not be confused with a Dolby Digital or DTS Bitstream, which is compressed, and digitally encoded in a different manner than PCM.owever, Dolby Digital and DTS encoded audio signals can be decoded into PCM signals and transferred via HDMI to a growing number of Home Theater Receivers for further processing and amplification. This is common in most Blu-ray and HD-DVD player applications. See also: Bitstream.