Milan Certified AVB Steps Out Of Consoles Into Broadcast

Digital Audio Denmark has confirmed that its AVB Milan expansion card is in the certification process as of October, with shipping expected to begin in November. The card adds Milan-certified AVB streams to the company's converter and interface range alongside its established Ravenna and ST 2110-30 options, and arrives with a second IBC headline: the updated DADlink scheme, which replaces simple daisy chaining with star-formation routing at near-zero added latency. The significance is less the card than the trajectory - one of the reference names in broadcast conversion now treats Milan as a first-class citizen next to AES67, not a console-side curiosity.

Milan has been growing quietly from the live sound side for a few years. PreSonus ships Milan-certified AVB networking across its current StudioLive generation, and its positioning makes the case plainly: Milan is an independently certified standard built on the IEEE AVB suite, so a console, stage boxes, personal monitor mixers and other manufacturers' Milan devices can share one Ethernet network with interoperability guaranteed by certification rather than by vendor goodwill. What Milan adds on top of raw AVB is a defined set of profiles - discovery and connection management through AVDECC, fixed stream formats, and common clocking - which is precisely the layer that historically made AVB deployments feel like engineering projects rather than purchases.

The engineering differences from Dante and AES67 are worth stating because they drive switch procurement. AVB uses stream reservation - the SRP protocol - plus credit-based traffic shaping, so bandwidth for an audio stream is admitted onto the network by the switches themselves rather than simply engineered with QoS queues; every hop must be a TSN-capable switch, and a misconfigured one silently fails reservation requests instead of dropping packets noisily. In exchange the design delivers tightly bounded, deterministic latency on networks that are modest by video standards. AES67 remains the pragmatic bridge between ecosystems, which is why vendors increasingly offer both, and why a facility that standardises on one should still specify AES67 compatibility on the other.

For buyers the checklist is short and concrete. Inventory the switches first: every hop in an AVB/Milan path needs TSN support, so an existing Dante-grade switch fabric is not automatically an AVB fabric. Map PTP domains deliberately rather than letting grandmaster election drift. Confirm how a vendor's Milan devices reach a Dante house - through a bridge device or through AES67 - and price that box into the comparison. Amtune designs Dante and AES67 audio modules and modular AES67 I/O for exactly these mixed-protocol houses, with documented stream counts and clocking behaviour so that a Milan console, an AES67 core and a Dante stage rack can be planned on one drawing before anything is bought. Interop planning support from sales@amtune.com.