Aes/Ebu; Spdif (Coaxial, Optical) - RME Audio HDSPe AIO Pro User Manual

19.2 AES/EBU

The HDSPe AIO Pro digital breakout cable provides one XLR AES/EBU input and output each.
Connection is accomplished using balanced cables with XLR plugs. Input and Output are trans-
former-balanced and ground-free.
Besides the audio data, digital signals in SPDIF or AES/EBU format contain a channel status
coding. The incoming channel status is completely ignored.
The output signal coding of the HDSPe AIO Pro has been implemented according to AES3-1992
Amendment 4:
 32 / 44.1 / 48 kHz, 64 / 88.2 / 96 kHz, 176.4 / 192 kHz depending on the current sample rate
 Audio use
 No Copyright, Copy permitted
 Format Professional
 Category General, Generation not indicated
 2-Channel, No Emphasis
 Aux Bits Audio use, 24 Bit
 Origin: HDSP
AES/EBU and SPDIF can contain an Emphasis information. Audio signals with Emphasis have a
strong high frequency boost and thus require a high frequency attenuation on playback.
!
An Emphasis indication gets lost as there exists no standardized interface on computers to
handle this information!
Operation as second SPDIF I/O
Thanks to a highly sensitive input stage SPDIF
coaxial can be fed too by using a simple cable
adapter RCA/XLR. To achieve this, pins 2 and 3
of a male XLR plug are connected individually to
the two pins of a phono plug. The cable shielding
is only connected to pin 1 of the XLR - not to the
phono plug.
Using this cable adapter devices with coaxial SPDIF interface can be connected to the AES
output of the AIO as well. Note that most consumer equipment with phono SPDIF inputs will only
accept signals having a Channel Status 'Consumer' format. In such cases the adapter cable will
not work.
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User's Guide HDSPe AIO Pro © RME