Emu XL-7 & MP-7 User's Group

I just ran a quick test. I am partially right and partially wrong.

RIGHT: 
You can have multiple clocks on different inputs and you can have them both going out to a single output.

WRONG:
This is independent of anything on the routing tab, so you cannot route one clock to one output and a different clock to a different output.

For three screen shots from clockworks, see http://groups.yahoo.com/group/xl7/photos/album/386403292/pic/list

The Test:

I took two clock sources: (1) an older Roland RA-30 Intelligent Arranger on midi express input port 8 and (2) an E-Mu P2500 on midi express input port 4.

An XL-1 was connected to midi express output port 7. 

I set an XL-1 to external tempo, hit audition to monitor a preset, and watched the BASE TEMPO screen, which was set to "use MIDI."

In the mutings tab in clockworks, I muted [filtered out] realtime data on all incoming ports except 4 (clock from the P2500) and 8 (clock from the RA-30). See screenshot "motu-clock-test-realtime-input.jpg" .

I also muted realtime data on all outgoing ports except 7 (clock going to XL-1). See screenshot "motu-clock-test-realtime-output.jpg" .

So, you can (for example) have two or more different motu presets to switch between different master/slave configurations (one clock master going to several slaves), but you cannot route realtime data from different clock sources to different slaves.

Hope this helps.

Steve



--- In xl7@yahoogroups.com, "steve_the_composer" <smw-mail@...> wrote:
>
> I believe you can send midi clocks in on several ports. The problem is routing multiple in ports to a single midi out ports without muting some of the midi clocks on the way out to a single port.
> 
> I thought that on the midi express, you can in effect route different midi clock sources to different midi outs.  Since the MTP AV seems to show up in clockworks, I would hope the same is possible.
> 
> I could be wrong. I will try to test this when I can--probably not tonight though.
> 
> If midi coming in to motu port 1 is being sent out to ports 2, 3 and 4 (including midi clock--no filtering) and midi coming in to motu port 8 is being sent out to ports 5, 6, and 7, I don't see how there could be any co-mingling of midi clocks.
> 
> Of course, logic doesn't always work; so I might be wrong.  (I will test when I can.)
> 
> Steve
>  
> 
> --- In xl7@yahoogroups.com, Nathan Steele <XTCaine303@> wrote:
> >
> > You can only send midi clock into one port on the MTP or it will do odd 
> > things like doubling, quadrupling, 8x ing the tempo. this is a known 
> > "issue" if you are getting 8x tempo it sounds like 4 devices are sending 
> > clock into the mtp av. as i understand it clock messages are always sent 
> > out all  ports and so any input clock messages are merged and so you get 
> > the increased tempo, since clock messages are not channelized one clock 
> > looks like any other so four merged clocks at the same tempo produce 
> > this result.
>