Re: [LAD] OPEN CONTROL ARCHITECTURE

On Sat, 28 Feb 2015, Frederick Gleason wrote:

> Right. It’s the ‘mechanism, but no policy’ conundrum all over again.

This is a big one all right.

> I have no particular beef against OSC or OCA. However, there is already
> a small multitude of AoIP control protocols out there (Dante, JetNet,
> LiveWire, Q-Lan, WheatNet, …). I don’t think that adding Yet Another
> Incompatible Protocol is fundamentally going to improve this situation.
> What would be far more helpful would be a decent FOSS library for
> supporting one of the quasi-dominant AoIP systems; something that could
> help push that system over the top to make it the defacto industry
> standard.

I completely agree.... except, they don't seem very open. A lot of them
are not very good either. There seems to be an inverse trend of openness
to goodness. The more open things are the worse they are too.

> Today, in the pro audio/broadcasting space, there are really
> only two realistic contenders for this role: LiveWire or Ravenna. Pick
> one.

These two are basically no standard. Zeroconf for discovery and then web
browser for everything else. This is ok for something that will be set up
once during install and then will be used with that one set up there
after. (I have been reading device manuals) For a lot of Broadcasting set
ups this is probably fine. For live sound it is not... probably Dante is
bigger there though, but completely closed as it is the only thing that
feeds money to Audinate (who are now a partner with OCA BTW). Every audio
console maker that has split controler/mixer or digital snake seems to
have their own control system as well, mostly based on MIDI as far as I
can tell (they don't tell, just let some things slip :)

For the uses I see in Linux, the browser approach is always available, it
is the device setup standard pretty much across everything. Every embedded
OS supports some sort of web server. But this stuff is slow for live
control. MIDI is the thing people use right now for RT control, but it is
not at all standard or discoverable.

I see your point about defacto standard. The MCP is a good example, not
the best protocol, quite limited with only 16 faders. The Yamaha MIDI
mixer control is much better (Allen & Heath allows more controls but at
lower rez too and I am sure there are others).

If I make some OCA kinds of things, it will be because I see a use for it.
It will help me in my setup or others with a similar small setup. It has
been a long time since I was in the broadcast world and if I get back in
it will be in a small setup as I am not willing to move back to "the big
city". In that case I will be working with whatever they have anyway.

A quick note on Audinate. They are a partner with OCA as they were one of
the players in AES67. They are the only player from AES67 (that I can see)
that have not yet released anything that allows Dante devices/sw to work
with AES67 which they promised for the end of 2014 (the promises are still
on the website :) Their involvement in OCA does not in my mind mean they
will support OCA in any way and may be only making sure none of their
patents are disturbed. Audinate has the most to loose with any new
standard as their business is their protocol. Other network standards seem
to be linked with hardware. So the company has less to loose by supporting
another protocol so long as they include it with their hardware. It may in
fact allow them to streamline their product line by dropping some bits and
concentrate on the most profitable bits. If OCA is released in the next
few months as a standard (as it is supposed to be), another year will tell
if it is going to be used. Ravenna and Livewire (not to be confused with
LiveWire(tm) which is a motorcycle, or Livewire
http://static.comicvine.com/uploads/original/1/19859/846008-livewire__animated__picture_100.jpg
) both could bennefit from OCA as far as I can see though as you say they
may not feel the need to.

--
Len Ovens
www.ovenwerks.net

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Received on Tue Mar 3 04:15:02 2015