DirectOut RAV.MILAN.SRC A Slot
DirectOut RAV.MILAN.SRC A Slot
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RAV.MILAN.SRC.IO is a dual network audio interface card for the PRODIGY Series and MAVEN.A to connect with 64 channels each of RAVENNA and MILAN* streams.
One interface card, two audio engines
Hosting two audio network boards the interface card offers 2 x 64 of two different audio protocols - RAVENNA and MILAN. This allows to interface with two audio protocols in a single A Slot of MAVEN.A or PRODIGY.MC. With the two A Slots of a PRODIGY.MP the coverage can be extended by a third or even fourth audio protocol.
Sample Rate Conversion
Individual HD SRC for bi-directional sample rate conversion is on board as a standard.
The two audio network boards can be operated at different sample rates.
Dual network modules ensure a seamless connection across clock boundaries and different audio protocols on a single module.
Stream Redundancy
There are 2 x 2 independent network interfaces to connect each protocol via a second stream (Port 1 / Port 2).
The amount of audio channels per protocol is reduced at higher sample rates - 32 channels @ 2 FS or 16 channels @ 4 FS.
RAVENNA is an open audio networking technology developed initially by ALC NetworX.
DirectOut's own RAVENNA implementation relies on more than ten years of development.
As a successful participant of the JT-NM Tested program RAV.IO is listed in the JT-NM Tested Catalog as a module aligning with the SMPTE 2110 standards.
Milan is an audio networking technology created and maintained by Pro Audio market leaders in the Avnu Alliance®. Milan™ is a standards-based deterministic network protocol for real time media.
*Milan-certified
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Technical Specs
Key features RAVENNA
- 32 streams
- 64 channels (1 FS), 32 channels (2 FS), 16 channels (4 FS)
- 500 ms buffer (WAN capable)
- Sample rate 44.1 kHz up to 192 kHz
- Sample rate conversion (HD SRC on board)
- Stream redundancy ST 2022-7
- Switch configurable (NIC1 & NIC2)
- Compliant with AES67, SMPTE ST 2110-30 / -31
- Ethernet layer 3 ('Audio over IP')
- 2 x RJ45 gigabit ethernet
- PTP Hybrid Mode
- Remote control via browser and globcon
- NMOS IS-04 (stream discovery)
- NMOS IS-05 (connection management)
Key features MILAN
- 64 channels (1 FS), 32 channels (2 FS), 16 channels (4 FS)
- Sample rate 44.1 kHz up to 192 kHz
- Sample rate conversion (HD SRC on board)
- Switch configurable (Internal AVB switch)
- Ethernet layer 2
- 2 x RJ45 gigabit ethernet
- Remote control via ATDECC controller (i.e. Hive) and browser
NOTE: DNA modules are not supported by Lawo HOME.
Case Studies
FAQ
What is the difference between single network and dual network A Slot modules?
Single network A Slot modules provide one audio network interface, while dual network modules combine two networking technologies in one card, such as Dante-to-Milan or Dante-to-RAVENNA. Dual network modules are ideal for bridging different audio ecosystems and supporting hybrid workflows.
Which DIRECTOUT devices support A Slot modules?
A Slot modules are supported across several DIRECTOUT smart audio platforms, including PRODIGY.MP, PRODIGY.MX, PRODIGY.MC, and MAVEN.A. The number of available A Slots varies by hardware model.
What is the purpose of SRC in DIRECTOUT module names?
SRC stands for Sample Rate Conversion. Modules with SRC functionality include integrated high-definition sample rate conversion, enabling stable interoperability between devices running on different clock domains or sample rates.
What is the maximum channel count for A Slot modules?
Depending on the module type, A Slot modules can support up to 256 audio channels. Certain high-capacity modules, such as MADI4.IO and RAVENNA modules with optional licensing, offer expanded channel capabilities.
Which audio networking protocols are supported by DIRECTOUT A Slot modules?
DIRECTOUT A Slot modules support major professional audio networking standards including Dante, RAVENNA, AES67, ST 2110, Milan/AVB, and SoundGrid. This flexibility enables seamless integration into modern IP-based audio infrastructures.
If you wish to chat more about how to build a system around the DirectOut RAV.MILAN.SRC A Slot or integrate this into your current system, give us a call or email at: