Abbreviation for Sony Digital Inter-Face. Digital transmission format for digital audio, outdated today. As this is an old de-facto industry standard, it is available as an option for the D827 MCH. Transmission format not recommended for longer distances. Allows for transmission of 16-bit audio (Standard allows for 20 bits). Two standards are common: 2-channel transmission, unbalanced, on 75 W BNC-cable (used e.g. in Sony PCM-1630 devices), or multi-channel transmission on balanced lines with RS485 characteristics.

The Sound Description Interchange Format is an established standard for the interchange of sound descriptions and analysis data. This project provides libraries, SDIF and Easdif , as well as tools to read and write SDIF files.

SDII (Sound Designer II) SDMI