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

--- In xl7@yahoogroups.com, "gutman75" <bgutman@...> wrote:
>
> --- In xl7@yahoogroups.com, Jane <rdxesy@> wrote:
> > > - when I switch Prodatum to Multi mode and select a channel (e.g.  
> > > 1), all channel selection buttons (1-16) become disabled. Why does  
> > > this happen? What is the correct way to use multi mode in Prodatum?
> > >
> > it disables channel selection to avoid accidential(?) double clicking  
> > which would result multiple preset requests. they get enabled when  
> > again when the preset arrived completely.
> > so you request a preset but dont receive a dump.
> 
> So, now I know what is happening, but I've no idea why ;)

STEVE: Some users are impatient and might keep on clicking channel buttons repeatedly faster than Prodatum can request and receive data thereby causing Prodatum to be unable to handle the data. So, it makes sense that while data is updating Jan has the channels greyed out. Since Prodatum is open source, if the 1 second delay doesn't work with your performance/editing modality perhaps you can create a custom version that doesn't grey out the channels. (By any chance are you thinking about editing more than one preset at a time of different channels? This might be really great to do with 32 arps and 32 editing windows. I think Jan has put some much time into Prodatum, he really can't put any more time into programming advanced capabilities, but maybe he would be willing to advise others who want to try.) 

> How can I troubleshoot this problem? Is there any setting on the XL-7 I should check ?

STEVE: What are you trying to troubleshoot? So far as I can tell, Prodatum works; its just that when changing channels the channel selection mechanism is disabled for a brief time while data is updated. 

STEVE: (Unless I was right in the first place and you really were talking about Prodatum locking up in some way. If that's the issue, I just tried again to recreate the lock up with Beta 0.38 and couldn't. I tried everything--changing multi/omni/poly accepted/ignored settings in Prodatum and the front panel, turning midi data and program change settings to off, trying all the rechannelize settings, plus a few other things just to try to confuse Prodatum. I could not re-create a lock-up. I know that in earlier betas there was a lock-up problem when switching channels in Prodatum, but that bug is fixed in 0.38.)

> > of course you know that you must connect your MP-7 bidirectionally.  
> > also note that some devices do not forward sysex messages when daisy  
> > chained. so try a direct bidirectional connection.
> > >
> That's what I do. The Command Station is correctly identified, along with 4 ROMs in it. The handshake process ("Loading ROM data...") seems to pass fine. So it must be something else...

Hmmmmm. Does anything in your setup block sysex data? (Or did I ask about that before?)

Best wishes,
Steve
 
> cheers,
> Boris.
>