The AES/EBU digital audio specification was jointly developed by the Audio
Engineering Society (AES) and the European Broadcasting Union (EBU). AES/EBU audio
signals typically use XLR connectors, but 25- or 50-pin D-subminiature connectors can
also be used for multiple channels on interfaces or mixers.
Traditionally, AES/EBU sample rates were limited to 44.1 and 48 kHz at up to 24 bits per
sample. However, a “dual wire” mode allows some equipment to pair AES/EBU
connectors to increase the sample rate. Some newer devices also support “single wire”
mode with sample rates up to 192 kHz.