Recording. Internet. Sound. Archives for Secret Museum of the Air with Citizen Kafka and Pat Conte. SPDIF Connection. SPDIF, also written as S/PDIF, stands for Sony/Phillips Digital Interface, and is an interface to transmit digital audio.
In this tutorial, we will explain everything you need to know about this interface, including when and how to use it. Digital audio means that the audio signal is transmitted encoded in a series of 0s and 1s instead of being transmitted in analog format. This makes audio have higher fidelity, because no noise will be added to the audio signal. Therefore, it is always better to transmit audio in digital format. Currently, there are two consumer-level interfaces to transmit audio in digital format: SPDIF and HDMI (High-Definition Multimedia Interface).