ABSTRACT
After the information has been recorded, stored, and/or processed, the resulting data can be converted back into an analogous form that we humans can readily understand.
Before we delve onto the basic aspects of recording, processing, and reproducing audio in the digital domain, let’s take a look at how one form of information can be converted into another equivalent (analogous) form of information. For example, if we type the letters C, A, and T into a word processor, the computer quickly goes about the task of translating these keystrokes into a series of 8-bit digital words that would be represented as [0100 0011], [0100 0001], and [0101 0100]. These ‘‘alpha-bits’’ don’t have much meaning when examined individually; however, when placed together into a group, this data represents a four-legged animal that’s either seldom around or always underfoot (Figure 6.1). From this, we can deduct that whenever binary words are grouped together as a string of data that has an analogous and recognizable pattern, a meaningful message can be conveyed.
