Short:
The possibility to choose wether you’d like metering of the combined assigned channels to a DCA fader (aka group but without the processing)
Story:
I’d love to be able to implement my Pro Tools workflow into my dLive:
Kick bus
Snare bus
Tom bus
OH bus
→ drum bus → LR
Bass bus → LR
Guitar bus → LR
Vocal bus → LR
maybe FX bus → LR
Since this adds a lot of latency to the system this way of working is nowhere to be found in live sound.
Therefore I had the following idea:
Now my drums usually take 12 faders, bass 2, guitars 4, vocals 3 to 4.
I could scale down all those faders into 12 or less DCA faders (1 fader per ‘Pro Tools bus’ using only 1 bank on my C3500), and have DCA spill pop up my assigned faders (Midas Pro style) when needed. But! There is no metering on those DCAs, which actually makes me feel a little ‘claustrophobic’. If some mic or line cuts out or cracks because of a broken cable or whatever, it’ll be harder to quickly figure out where the problem is. I feel like I don’t know what’s going on anymore without metering. Not the best arguments but I’m sure there are more pros to this idea than cons!
That’s why I wrote ‘metering of the combined channels assigned to the DCA’.
By that I mean have the DCA metering act like a group, but drop the processing. Just like for example X32 DCA. I think it’s a great feature.
Why not use audio groups is also mentioned above. My main goal here is to reduce the numbers of faders used to control the most important elements of my mix. 2 kick faders become 1, 2 (sometimes 3!) snare faders become one, 3-4-5 tom faders become 1,… get the point?
If I want all those individual channels to be controlled by 1 fader per mic pair ánd have them with metering I’d need audio groups. But then I won’t be able to send my drums to a drumgroup, since they’re already sent to groups. That’s why DCA with metering would solve my problem here.
Can you clarify “combined”? As in, mix the audio signals? At that point, it is no longer a DCA, but a group. So what you are in fact asking for, is an audio summing group without the processing? That still requires the audio to be summed somewhere. If you do in fact still mean DCAs, then I refer you to my original post.
From the hard logic, there is nothing to meter in a DCA group. It is a multiplier of the assigned channels. Shure you can calculate something like X32 does.
To minimize the number of faders with two kicks and two snare mics I use ganging (only fader active). Maybe a combination of groups and ganging can help you.
By combined I mean, as Rainer just said, the calculated total signal of all the assigned faders. Not the actual signal, but a series of 1s and 0s that -would- be passing through the ‘group’. Which isn’t, since it’s a DCA. Again, X/M32 style. I don’t think calculating this will take the computer too much effort since the console has an insanely powerful computer.
Also a group doesn’t have the Spill function. That’s the whole idea. I want to have the spill without losing overview of metering. (Metering screen does this but not as easy to see as the LEDs above the faders)
Rainer;
That’s actually a good idea. But then there won’t be a DCA spill function available. I like the idea of pressing the ‘master fader’ (aka dca) mix and seeing the assigned faders immediately. In this case I prefer the spill without metering over ganging with metering.
I get what Bob is saying, I work with DCA a lot, in combination with groups… My right fader-bank is something like this:
Grp - Drum Kit
Dca - SnareTop/SnareBtm
Dca - Snare Reverb
Dca - Bass
Dca - Guitars
Grp - Keys
Dca - Backing Vocals
Dca - Lead Vocals
Dca - Intro Tunes
Aux - Delay Send
Dca - Vocal FX Returns
Grp - Master
Only 4 out of these 12 faders will have any metering available. And although it has not bothered me, I could go for a visual assurance that something is happening there!
I’m not certain how the X32 does its DCA metering, but I cannot think of a way of doing it without effectively lying to the user or actually summing the audio. ie, I don’t think there’s any possible way for DCA metering based on the meters of channels assigned to the DCA to behave exactly the same as if those channels were summed in an audio group.
One way I can think of doing X32 DCA metering is to just take the maximum meter level of assigned channels. This wouldn’t account for summing or coherency of signals.
Another, more computationally involved method would be to convert all relevant meters of assigned channels from log to lin, add them up, then convert the result back to log. This still wouldn’t account for coherency of signals.
I would like this feature too. I am not looking for reference metering. Just confirmation of signal at a glance. You can PAFL a DCA. Why can’t you just feed that signal to the meter?
I believe early versions of iLive firmware had DCA metering active but the feature was removed due to a combination of user requests and confusion according to a post by stix in the iLive forums 8 years ago.
As he said there, it would be nice as an option that could be enabled if wanted.
Unlike a DCA, the PAFL bus (due to being a bus) can combine/mix signals.
When you PAFL a DCA, you actually combine the members of that DCA using the PAFL bus, which is something that can then be metered.
[notice how when a DCA is PAFL’d, the PAFL key of the member channels will flash].
As there is only one PAFL bus, it would be impossible to use this method for simultaneous yet individual metering of DCA’s.
Without summing the channels, any metering would be incorrect, and providing incorrect information to the engineer is much worse than providing no information at all!
The best way to check the combined signal level of DCA members is to actually mix them, which is exactly why the ‘ignore PAFL additive on/off and route all members to the PAFL bus when a DCA channel strip PAFL key is pressed’ feature was included
Without summing the channels, any metering would be incorrect, and providing incorrect information to the engineer is much worse than providing no information at all!
Hello, Keith. I don’t agree with your statement. As an operator it is at my discretion to decide whether information is helpful for me or not, as long as I know how this information comes about.
For 3 years now I have been technically realising a special event, which would not have been possible at any reasonable level without a metering of the DCAs. And I would really like to specify the dlive for it, but unfortunately this is not possible.
Can anyone name a desk that has dca via MCA metering apart from the one named above. Just interested. Never come across it myself in o or twenty years of live mixing
I would also like the possibility of a clip recognition at the DCA.
We discussed here in a German forum whether there should be a level indicator on the DCA. Some colleagues would like to have that, I personally don’t miss it - but I wouldn’t resist it either.
So back in the analogue days when we had VCA’s there was no metering on the VCA at all.
However what we did get was a VCA MAX light on every channel to indicate when the VCA chip could not give any more leval to the channel.
Do we still need this, can the DCA cause a channel to clip?
the idea of our colleagues refers primarily to events where a large number of channels are available.
When you mix an orchestra, you often have many channels in a DCA group.
Here it would be useful to have at least the loudest input signal in this group on the level meter to see if it gets hot somewhere.
In contrast to earlier analog consoles, we can also listen to the DCA groups in the dLive. This is of course not a mix bus, but the signal is already present here, so a level meter should no longer be a witch’s work.
I find this idea, after some thinking, even good.
