Adding I/O Via Adat / S/Pdif And Aes67 - Neumann.Berlin MT 48 Instruction Manual

Adding I/O via ADAT / S/PDIF and AES67

The MT 48 offers two ways for adding more I/O channels:
ADAT
• ADAT is an established standard used predominantly in project studios . ADAT allows for up
to 8 channels via optical connectors at sampling rates up to 48 kHz . At higher sampling rates
the channel count reduces to 4 channels at double sampling rates up to 96 kHz and 2 chan-
nels at quad rates up to 192 kHz .
• Alternatively, the optical I/O can be used in S/PDIF mode, allowing for 2 channels at all
sampling rates up to 96 kHz .
AES67
• AES67 is an open standard for audio-over-IP networks which ensures interoperability
between various audio network protocols such as DANTE, RAVENNA . AES67 was developed
by the Audio Engineering Society (AES) and has been embraced by the broadcast market
but is gaining more traction in recording environments as well . AES67 uses ethernet con-
nections and can handle high channel counts even at high sampling rates . The AES67 port
on the MT 48 is bidirectional, it can send and receive audio data simultaneously . Using a
standard ethernet switch you could connect a Neumann AES67 loudspeaker and Merging
converters at the same time . Note: The MT 48 supports the RAVENNA protocol, which is fully
compliant with AES67 and SMPTE ST 2110 .
• Peering is a particularly convenient form of AES67/RAVENNA . Currently this only works with
devices by Merging Technologies (who are now part of Neumann), such as Hapi, Horus, and
Anubis . These high-end converters can be seamlessly integrated via Peering for I/O expan-
sion and remote controlling their preamps and other functions from the MT 48 .
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