On November 9, 2015 05:59:38 PM Andrew Deryabin wrote:
> Hi All, Tim,
> 
> Here is my little question (sorry if I missed something from previous
> explanations about advanced routing):

Not at all, it was never properly explained -;)

> When 'Omni' column's checkbox is checked in routing popup what channels
> are routed to selected output in case of multi-channel instrument?
> Only 1+2 or all mixed pairs?

It attempts to assign the first N common channels while ignoring the rest.

Pan and volume are applied only to the first one or two channels.

Best explained with examples:

>From a 1-channel track to a 1-channel track:
The source channel has volume applied and then is sent to 
 the destination channel.

>From a 1-channel track to a 2-channel track:
The source channel has volume applied and then is sent to 
 the two destination channels with pan applied.

>From a 2-channel track to a 1-channel track:
The two source channels are mixed with pan and volume applied and
 then sent to the destination channel.

>From a 2-channel track to a 2-channel track:
The two source channels have pan and volume applied and are then 
 sent to the two destination channels.

(Those first four scenarios are exactly like before, as expected.)

>From a 1-channel track to a 5-channel track:
The source channel has volume applied and then is sent to 
 the FIRST TWO destination channels with pan applied. 
Other destination channels are ignored.

>From a 2-channel track to a 5-channel track:
The two source channels have volume and pan applied and then are sent to 
 the FIRST TWO destination channels. Other destination channels are ignored.

>From a 5-channel track to a 10-channel track:
The five source channels are sent to the FIRST FIVE destination channels. 
The FIRST TWO source channels have volume and pan applied, while
 the remaining three are sent without modification.
Other destination channels are ignored.

>From a 5-channel track to a 1-channel track:
The FIRST TWO source channels have pan and volume applied and then 
 are sent to the destination channel. Other source channels are ignored.

>From a 10-channel track to a 5-channel track:
The FIRST FIVE source channels are sent to the five destination channels. 
The FIRST TWO source channels have volume and pan applied, while
 the remaining three are sent without modification.
Other source channels are ignored.

---
Note that when using Channel routing instead of Omni routing, 
 pan and volume are applied only to the first one or two channels.
Pan cannot be applied as broadly as with Omni mode. For example 
 there is no pan when say, routing one channel to two, EVEN if those
 two channels are the FIRST two destination channels.

---
Summarizing, a mixer strip's controls are applied only to the first
 N channels that the STRIP ITSELF supports.

So you can see why I spoke of future TRUE multi-channel strips.
There would be meters for ALL channels, and volume and pan 
 would apply to ALL channels.
It would be tricky since a new kind of panner is needed.
Have you seen Ardour's multi-channel mixer strip panners?
Also there needs to be a way to select how many channels the 
 STRIP ITSELF has. Again, possibly it will be similar to Ardour where 
 you tell it how many input AND output channels a strip has.
That's the kind of thing you may expect with multi-channel strips.
We'll see how it works out...

---
And so on...
Hope I got that explanation right, and indeed the logic of it all too.
I need to make some kind of table or chart for users.

Thanks.
Tim.

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