ABSTRACT
The digital information is transferred in the form of a voltage signal, a current signal, or as light impulses on a fiber optic cable. The individual standards define what method or methods that apply. Even though the connection transfers audio, the frequency content in a connection like that immediately reaches several MHz. Hence audio transferred as digital signals should always be treated as RF. The most widely used interfaces for audio were originally initiated and standardized by the Audio Engineering Society and the European Broadcast Union, and hence bore the names of both of these organizations. However, the AES has taken over the maintenance of this standard, so the name has just become “AES3,” a standard in several parts.
