Digital equipment must be able to talk to each other.

CODECs

The word CODEC stands for CODe/DECode. A CODEC defines a digital standard. It will include sampling frequency, processing level, encoding ratios, compression standards (to be discussed later in this book), and other information.

Most digital equipment will produce both analog and digital outputs. If you hook up the analog output of one piece of digital equipment to the analog input of another piece of equipment, they will “talk to each other,” but it is complicated. In the first piece of equipment, the digital signal will go through a D to A converter to become analog. As soon as it is in the next piece of equipment, it must go through an A to D converter to become digital. It would ...

Get Basic TV Technology, 4th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.