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.
PCM is what a cd-player can put out. It is un-compressed audio. It usually only comes out with an optical cable. AC3 is another name for Dolby Digital or Dolby 5.1 which is what all DVD players and HDTV programs output. It can come via an optical, coaxial-digital or a HDMI cable. If you have the option - set the receiver to Auto so it can auto-detect the type of signal.