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

OK, it seems it will work on-the-fly. Here's what I did:

With C01A as my basic channel, I held down a single note works with multiple notes, too). I used a kit with the preset arp on. (Works with non-pattern arps.) 

With the arp playing at the tempo defined by the BPM Clock and the note value (I had it at 1/4), I sent a sysex command to change it to 1/32. (Then tested it with other note values.)

Here's the sysex:

F0 18 0F 00 55 01 02 01 07 7f 7f 04 08 01 00 F7

F0 18 0F id 55 01 02 = parameter edit (id = sysex ID)
01 07 = preset_select
7f 7f = -1 [Edit Buffer]
04 08 = preset_arp_note
01 00 = 1/32
F7 = end of sysex command

At least that's the E-MU end of it.  I just tried it in the Novation Template Editor (1.3) and the Set button never became active. AHA!!!!

(1) Do not use F0 and F7.
(2) Message was too long.

So, (in theory, since I don't have a novation controller):

18 0F 00 55 01 02 01 07 7f 7f should set the parameter editing to the edit buffer, and

18 0F 00 55 01 02 04 08 DV 00 should set a knob or slider to control the preset_arp_value

For starters you might want the full 1 to 19 range, although I suspect you will probably want a much smaller range.

Hope that gets you started on the right track.

Steve

PS: Thanks for the puzzle of the day!!!




--- In xl7@yahoogroups.com, "steve_the_composer" <smw-mail@...> wrote:
>
> Did a simple test with Midi-Ox to change MASTER_ARP_NOTE:
> 
> F0 18 0F 00 55 01 02 04 05 dv 00 F7 [hex values]
> 
> where dv = data value.
> 
> The range is really 1 to 19, but both 0 and 1 set the arp note value to to 1/32 and anything over 19 will also switch the value to 2/1.
> 
> I believe the novation template editor uses dv to stand for data value; double check that. 04 05 is the <xx, xx> for master_arp_note; 04 08 is for preset_arp_note.
> 
> IMPORTANT: You need to use PRESET_SELECT (id = 897 (01h, 07h) to tell your e-mu which preset you want the subsequent sysex data to affect. (Or LAYER_SELECT - id = 898 if changing later level parameters). If you are using the edit buffer, set the preset_select to -1 <7F 7F>.
> 
> Note: you can include multiple address value pairs <xx, xx, yy, yy> in a single sysex message.
> 
> Its been a while since I have done parameter manipulation via sysex (other than little tests like this), but I believe when you edit a preset other than in the edit buffer, you are editing it in memory.
> 
> If that's the case, I am not sure if changing the value while an arp is playing with change it on the fly.
> 
> So, I'd suggest setting up the knob/slide with the master_arp_note. Once that is working, try it with an arp in the edit buffer. 
> 
> Right now I don't have any hardware to simulate what you want to do (on-the-fly changes), so I will probably just try it with a sequencer.
> 
> Hope this helps.
> 
> Steve
> 
> PS: I gave it a try using MIDI-OX to send changes while an arp is playing and it doesn't do what I assumed you were trying to do. 
> 
> Ahhhhh. I see. I was testing in audition mode with patterns, but note_value is for non-pattern modes!!! Guess I will have to hook up a keyboard.
> 
> 
> --- In xl7@yahoogroups.com, "steve_the_composer" <smw-mail@> wrote:
> >
> > OK--I see: ARP_NOTE is the note value, so I am guessing you want to use a knob or slider to sweet that from 1/32 note to let's say 1/4 note, as a sort of rhythmic accelerando, for example.
> > 
> > Interesting that there are 19 possible values available on the front panel, but the sysex manual reports 20 values (min = 0 to max = 19). Could be a typo; 0 could be off, or something smaller than 1/32; 19 could be something greater than 2/1.
> > 
> > Will explore more later. 
> > 
> > --- In xl7@yahoogroups.com, "steve_the_composer" <smw-mail@> wrote:
> > 
> > > How do you envision the ARP_NOTE being used to create those effects?
> >
>