ABSTRACT
In most cases it is preferred to interface digital audio devices in the digital domain, instead of using analog interconnections. This is because every time audio is transformed from analog to digital, or digital to analog, there are inevitable quality losses. While analog interfacing is simple and well understood, there are few cases in which it would be desirable to interface two digital audio devices in the analog domain. If the digital audio devices are not provided with digital audio interfaces, for example, analog interfacing will be required. Such an analog interface, however, will result in subtle changes in the digital audio from one side of the interface to the other. The exact sequence of numbers that make up the digital audio will not be reproduced at the far side of an analog interface.
