2500 / JJOS XL - Midi Patch change bug?

hi,

i did a search through the Bug thread, but it's really long and i couldn't find anything about this

i just updated to JJOS XL on my 2500, and i'm having a problem:

when i start a sequence, it is sending out some kind of Midi message (i guess?) to my Dave Smith Tetra synth module - which causes a Patch change. weird thing is, i turned off all Midi CC/Sysex receive options on the Tetra, but the Tetra is totally buggy, so i wouldn't be surprised if it's receiving those messages even though i turned those options off

the MPC is sending out the same message at the start of every sequence i load - ie, it always causes the Tetra to switch to the same patch.

just to be sure, i switched back to JJOS 3.09, and the problem doesn't happen

another weird thing is, if i make a new sequence in XL, it won't send out this Patch change at the start.... it's only on these old sequences that i load up (all of which were created while running Akai OS)

is this a known bug? if so, is there something i can do on the MPC to switch off sending Sysex type messages from the Midi Outs? well, i do actually want to be able to send velocity, but other than that, i won't need to do anything else Sysex / CC wise

any help would be appreciated!!

thx

jason

Yeah, you're gonna come up against a ton of strange problems if you open an AkaiOS project in JJOS2XL.

For your current issue-> First of all, go into step edit for every track in each sequence and look for Program Change events (normally look like-> PC : Grand Piano : 1) and delete them all. Also look for EXCLUSIVE events and delete them all.
In Step Edit you can change the View at the top to PRG CHANGE and EXCLUSIVE to make it quicker.

Also make sure that PCseq is set to --- or OFF for every track in every sequence.

I think that covers all areas where the mpc can send Program Control data.

jimmie wrote:Yeah, you're gonna come up against a ton of strange problems if you open an AkaiOS project in JJOS2XL.
..............Also make sure that PCseq is set to --- or OFF for every track in every sequence.

actually yeah, that PCseq tip did the trick... it's gonna be tedious changing that for every track, but it's manageable

off the top of your head, can you think of any obvious things i should be prepared for that could be problematic with my Akai OS projects?

i bought this 2500 to use live... so i've been preparing to take it out live.... i felt i needed some of the things that JJOS2XL offered for my live set, so i'd really like to stick it out, but i don't have a lot of time to deal with problems/bugs

so if you know something that i might run into that would affect my Akai-OS-created Sequences and Programs... please let me know!

thanks a lot for your help!

jason

Compatibility between JJOS2XL and AkaiOS:
http://www7a.biglobe.ne.jp/~mpc1000/mpc2500/xl/important.htm

JJOS2XL additions:
http://www7a.biglobe.ne.jp/~mpc1000/mpc2500/xl/

I also remember something about it being wise to format your HD when you switch to JJOS from AkaiOS, but that may have to do with pre v1.24AkaiOS.... I'm not sure about that.

jimmie wrote:Compatibility between JJOS2XL and AkaiOS:
http://www7a.biglobe.ne.jp/~mpc1000/mpc2500/xl/important.htm

JJOS2XL additions:
http://www7a.biglobe.ne.jp/~mpc1000/mpc2500/xl/

I also remember something about it being wise to format your HD when you switch to JJOS from AkaiOS, but that may have to do with pre v1.24AkaiOS.... I'm not sure about that.

thanks jimmie