DIRECTOUT RAV.MILAN.SRC.IO
DirectOut RAV.MILAN.SRC.IO
RAV.MILAN.SRC.IO is a dual audio network module for a series of PRODIGY i MAVEN.A enabling support for a 64-channel RAVENNA stream and a 64-channel MILAN stream*.
One module, two audio engines
The module equipped with two audio network cards offers 2 x 64 different audio protocols - RAVENNA and MILAN. This allows connection to two audio protocols in one A-slot of the MAVEN.A or PRODIGY.MC device. With two A-slots on the PRODIGY.MP device, the range can be extended to include a third or even a fourth audio protocol.

Sample Rate Conversion
A custom HD SRC chip for bidirectional sample rate conversion is built in as standard.
The two audio network cards can operate at different sample rates.
Dual network modules provide a seamless connection between clock boundaries and different audio protocols in a single module.
Redundant streams
There are 2 x 2 independent network interfaces to connect each protocol via a second stream (primary/secondary or Port 1 / Port 2).
The number of audio channels per protocol is reduced at higher sampling rates - 32 channels at 2 FS or 16 channels at 4 FS.
RAVENNA is an open audio networking technology initially developed by the ALC NetworX.
DirectOut's own implementation of RAVENNA is based on more than a decade of development.
As a participant in the JT-NM Tested program, RAV.IO is listed in the JT-NM Tested catalog as a SMPTE 2110 compliant module.
Milan is an audio networking technology developed and maintained by Pro Audio market leaders within the Avnu Alliance®. Milan™ is a standards-based deterministic network protocol for real-time media.
* an application for certification has been submitted
Key features of RAVENNA
- 32 streams
- 64 channels (1 FS), 32 channels (2 FS), 16 channels (4 FS)
- 500 ms buffer (WAN support)
- Sampling frequency from 44.1 kHz to 192 kHz
- Sample rate conversion (built-in HD SRC chip)
- Stream redundancy ST 2022-7
- Configurable switch (NIC1 and NIC2)
- Compliance 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 detection)
- NMOS IS-05 (call management)
Key features of MILAN
- 64 channels (1 FS), 32 channels (2 FS), 16 channels (4 FS)
- Sampling frequency from 44.1 kHz to 192 kHz
- Sample rate conversion (built-in HD SRC)
- Configurable switch (internal AVB switch)
- Ethernet Layer 2
- 2 x RJ45 gigabit Ethernet
- Remote control via ATDECC controller (e.g., Hive) and browser
NOTE: DNA modules are not supported by Lawo HOME.



