AES/EBU

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AES/EBU

(Audio Engineering Society/European Broadcasting Union) A professional serial interface for transferring digital audio from CD and DVD players to amplifiers and TVs. AES/EBU is typically used to transmit PCM and Dolby Digital 5.1, but is not tied to any sampling rate or audio standard.

AES3 and AES3id - Short and Long Distances
AES3 uses 110 ohm shielded twisted pair (STP) cable with XLR connectors up to a distance of 100 meters. AES3id uses 75 ohm coaxial cable and BNC connectors for up to 1,000 meters. "Unbalanced" coax is better for long distances than "balanced" twisted pairs.

S/PDIF
S/PDIF is the consumer version of AES/EBU and uses a lower signal voltage. They both support the same audio data with slight differences in the frame bits. Conversion between these interfaces must be handled with electronic circuits, not by adapting one connector to another. See S/PDIF.


AES/EBU Vs. S/PDIF
AES3 uses shielded twisted pair cables while the AES3id variation shares the same cable as the consumer-oriented S/PDIF interface.
References in periodicals archive ?
The Inrevium Spartan-6 FPGA Broadcast Connectivity Kit from Tokyo Electron Devices supporting brand new low cost FMCs for SD/HD/3G-SDI and AES3 audio and optional FMCs for various display interfaces like HDMI, DisplayPort, and V-by-One HS;
The interface converts one AES3 stream into compressed IP data and vice versa, thus integrating the whole installation.
The AES home page [2] served as a tool to disseminate information such as algorithm specifications and source code, AES3 papers, and other Round 2 public comments.
Twenty-four of those papers were presented at AES3 as part of the formal program, and one of the remaining papers was presented during an informal session at AES3.
A summary of AES3 presentations and discussions will be available in Ref.
In brief, the AES/EBU standard allows for a CRC error correction code to be transmitted in every frame of the AES3 interface to allow the digital receiver to correct for transmission errors.
At the same time it is a great replacement for dedicated ICs for AES3 transceivers and Sample Rate Converters, reducing number of components and overall application cost.
The STARLINK-NXGEN transmits AES3 192 kHz Digital Composite using less than 500 KHz of spectrum.
Regarding digital I/O, AES3 and S/PDIF are standard to the APx555, with the instrument also supporting the entire range of APx options, allowing native connectivity and analysis of audio via Bluetooth, HDMI, Digital Serial (I2S, TDM) and PDM (1-bit oversampled) formats.