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

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Message

Re: External tempo Sync Drift

2004-03-18 by deknoww

...i would first find a drum machine, or kbd with midi clock out and 
try syncing with that....at least you could then eliminate the xl7 as 
being the problem.

then, i would try using the mtp without the hub, and if that fails, 
try another cheap midi interface.  those motu boxes can be a pain, 
and may be the culprit.

deknow

--- In xl7@yahoogroups.com, "wildstar_1701" <justinsamaha@y...> wrote:
> hi folks. i could really use some help on this one, as it's grinding
> my work to a 
> halt. problem summary: my XL-7's tempo drifts in relation to an
> external 
> master tempo clock. yes, i have Base Tempo set to "ext". the XL-7 
is 
> connected to a MOTU micro lite, connected via USB to my Mac G4,
> running 
> Digital Performer 4.1 on OS 10.2.8.
> 
> as a Digital Performer sequence plays, the tempo on the XL-7 will
> usually 
> start in-sync, then jump a few BPM's higher or lower, then return 
to sync for a 
> few measures. then it might jump 1 BPM higher, stay there for two
> measures, 
> and then regain sync. the fluctuations are erratic, and while it
> keeps sync 
> about 80% of the time, that other 20% can really screw up arpeggios,
> delays, 
> and LFO's that are supposed to be tempo-synced.
> 
> the problem remains whether an empty sequence plays back (no MIDI
> data at 
> all) or a sequence with 10 MIDI tracks and lots of CC info plays 
back.
> 
> i've checked, re-checked, and re-re-checked my Digital Performer 
sync 
> settings, and of course the XL-7's Base Tempo setting.  maybe it's
> the MOTU 
> interface? maybe it's USB? i've heard strange rumors about MIDI and
> USB not 
> getting along well. maybe it's that my MIDI interface is plugged 
into
> a USB 
> hub? 
> 
> i've tried searching the archive here, but haven't found anything
> like this 
> problem. if anyone could direct me to a thread here that i've 
missed,
> or of 
> anyone has some insight into this problem, you would have my 
eternal 
> gratitude. my hunch is that either i don't have DP's "transmit 
sync" settings 
> right (even though i THINK i do), or that there is a problem with 
USB or my 
> MIDI interface.
> 
> thanks!

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