# Metering on DCA faders

**URL:** <https://forums.allen-heath.com/t/metering-on-dca-faders/7926>\
**Category:** dLive Feature Suggestions\
**Created:** [10 December 2018 16:51 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926 "2018-12-10T16:51:42Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![bobbriessinck](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/bobbriessinck/32/2395_2.png) [@bobbriessinck](https://forums.allen-heath.com/u/bobbriessinck)\
**Post date:** [10 December 2018 16:51 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/1 "2018-12-10T16:51:42Z")

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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!

Even an X32 has DCA metering, you can do it, A&H! 🙂

I’d love to hear people’s opinion on this!

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**Author:** ![davidco](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/davidco/32/1819_2.png) [@davidco](https://forums.allen-heath.com/u/davidco)\
**Post date:** [10 December 2018 18:46 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/2 "2018-12-10T18:46:55Z")

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You know a DCA doesn’t carry audio, right? Where do you think you would source the meter from on a DCA? Why not just use an audio group?

DC

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**Author:** ![bobbriessinck](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/bobbriessinck/32/2395_2.png) [@bobbriessinck](https://forums.allen-heath.com/u/bobbriessinck)\
**Post date:** [10 December 2018 18:57 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/3 "2018-12-10T18:57:26Z")

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Hey DC,

Sure, I know that. 🙂

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.

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**Author:** ![davidco](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/davidco/32/1819_2.png) [@davidco](https://forums.allen-heath.com/u/davidco)\
**Post date:** [10 December 2018 22:36 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/4 "2018-12-10T22:36:33Z")

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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.

DC

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**Author:** ![loloverde](https://avatars.discourse-cdn.com/v4/letter/l/b4bc9f/32.png) [@loloverde](https://forums.allen-heath.com/u/loloverde)\
**Post date:** [10 December 2018 23:12 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/5 "2018-12-10T23:12:01Z")

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Howdy

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.

bye  
Rainer

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**Author:** ![bobbriessinck](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/bobbriessinck/32/2395_2.png) [@bobbriessinck](https://forums.allen-heath.com/u/bobbriessinck)\
**Post date:** [10 December 2018 23:28 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/6 "2018-12-10T23:28:01Z")

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DC,

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. 🙂

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**Author:** ![eliaudio](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/eliaudio/32/1891_2.png) [@eliaudio](https://forums.allen-heath.com/u/eliaudio)\
**Post date:** [11 December 2018 00:07 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/7 "2018-12-11T00:07:59Z")

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+1

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!

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**Author:** ![davidco](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/davidco/32/1819_2.png) [@davidco](https://forums.allen-heath.com/u/davidco)\
**Post date:** [11 December 2018 13:00 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/8 "2018-12-11T13:00:03Z")

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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.

Or are you guys happy with misinformation?

DC

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**Author:** ![summitcn](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/summitcn/32/2846_2.png) [@summitcn](https://forums.allen-heath.com/u/summitcn)\
**Post date:** [11 December 2018 13:25 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/9 "2018-12-11T13:25:57Z")

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+1

The hottest signal of the group is the only one that would need to be displayed. This would be a nice feature.

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**Author:** ![dalekasperson](https://avatars.discourse-cdn.com/v4/letter/d/f1d935/32.png) [@dalekasperson](https://forums.allen-heath.com/u/dalekasperson)\
**Post date:** [6 February 2019 22:56 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/10 "2019-02-06T22:56:12Z")

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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?

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**Author:** ![mjcelectronics](https://avatars.discourse-cdn.com/v4/letter/m/47e85d/32.png) [@mjcelectronics](https://forums.allen-heath.com/u/mjcelectronics)\
**Post date:** [7 February 2019 11:47 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/11 "2019-02-07T11:47:28Z")

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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.

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**Author:** ![Keith](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/keith/32/2852_2.png) [@Keith](https://forums.allen-heath.com/u/Keith)\
**Post date:** [7 February 2019 12:17 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/12 "2019-02-07T12:17:10Z")

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Hi @dalekasperson and all,

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 🙂

Cheers,  
Keith.

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**Author:** ![audiobo](https://avatars.discourse-cdn.com/v4/letter/a/74df32/32.png) [@audiobo](https://forums.allen-heath.com/u/audiobo)\
**Post date:** [22 March 2019 20:41 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/13 "2019-03-22T20:41:30Z")

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> 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.

best regards  
Boris

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**Author:** ![morganethix](https://avatars.discourse-cdn.com/v4/letter/m/3bc359/32.png) [@morganethix](https://forums.allen-heath.com/u/morganethix)\
**Post date:** [22 March 2019 21:08 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/14 "2019-03-22T21:08:50Z")

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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

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**Author:** ![steffenromeiss](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/steffenromeiss/32/2684_2.png) [@steffenromeiss](https://forums.allen-heath.com/u/steffenromeiss)\
**Post date:** [23 March 2019 13:28 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/15 "2019-03-23T13:28:35Z")

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As far as I understand it now… it would be a good solution to indicate al least clipping within the DCA group

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**Author:** ![focalad](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/focalad/32/270_2.png) [@focalad](https://forums.allen-heath.com/u/focalad)\
**Post date:** [23 March 2019 14:37 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/16 "2019-03-23T14:37:14Z")

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If accurate metering is a concern, I could see some benefit to having a single LED illuminate to show when audio is present.

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**Author:** ![steffenromeiss](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/steffenromeiss/32/2684_2.png) [@steffenromeiss](https://forums.allen-heath.com/u/steffenromeiss)\
**Post date:** [23 March 2019 14:39 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/17 "2019-03-23T14:39:00Z")

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> If accurate metering is a concern, I could see some benefit to having a single LED illuminate to show when audio is present.

“signal present” and Peak detection would help on that, that’s true

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**Author:** ![wolfgang](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/wolfgang/32/403_2.png) [@wolfgang](https://forums.allen-heath.com/u/wolfgang)\
**Post date:** [23 March 2019 23:57 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/18 "2019-03-23T23:57:58Z")

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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.

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**Author:** ![brendonp](https://avatars.discourse-cdn.com/v4/letter/b/f14d63/32.png) [@brendonp](https://forums.allen-heath.com/u/brendonp)\
**Post date:** [24 March 2019 07:29 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/19 "2019-03-24T07:29:55Z")

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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?

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**Author:** ![wolfgang](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.allen-heath.com/wolfgang/32/403_2.png) [@wolfgang](https://forums.allen-heath.com/u/wolfgang)\
**Post date:** [30 March 2019 00:44 UTC](https://forums.allen-heath.com/t/metering-on-dca-faders/7926/20 "2019-03-30T00:44:41Z")

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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.

[Next page](https://forums.allen-heath.com/t/metering-on-dca-faders/7926.md?page=2)
