Dimension groove patches and tempo changes

Hello,

I'm finding that the groove patches in Dimension Pro will not follow the tempo changes of my project. For example, I have a project with eight tempo changes over a four measure stretch, and the grooves are out-of-time (sometimes the groove doesn't change at all).

I hit a new sequence at each tempo change, so it's not that I'm trying to make the sample change tempo mid-sequence.

My current explanation is just that the samples aren't able to follow every tempo. Maybe it's a Dimension thing, I'm not sure.

Any thoughts?

I'm using 1-note triggers...the actual slices/samples work just fine - I've never had any trouble with Dimension following tempo changes (which I use a lot in MIDI orchestration...part of getting the right tempo for the phrasing) except with grooves.

So you think the grooves just won't do it? It's not that you can't notice the tempo change. The grooves are noticeably off compared to the metronome and just stop "fitting" together - extra beats and silence holes.

I hit a new sequence at each tempo change, so it's not that I'm trying to make the sample change tempo mid-sequence.

Then it should be working, with any MIDI trigger note between 24-47 [C2 - B3, under the Cakewalk host convention of middle C=C5].
Once a 'groove' is triggered, it will play through its entirety at the tempo detected at the point of triggering.

Is there something else wrong, possibly? If this is something other than Dimension, I'd be happy to troubleshoot that, rather than reprogram the whole sequence...

Could be. Not knowing exactly what you were using, I tested a few of the original installation's 'Musical Grooves' & 'Drum Grooves' in Sonar7. I just repeated a quick test with your named patch, with the same results. These testbeds weren't full-blown projects, so maybe it's me missing something from a more extensive setup.

I know that certain hosts have difficulty with updating their tempo information to plugins, such as Project5. If I run across anything else, Dimension or host-related, I'll be sure to drop that information here.

You think it's Sonar?

I'm not sure what it could be at this point in the experimentation. I'd thought one possibility might be that the tempo change & note-ons were 'snapped' to the exact same MIDI tick. My theory was that scenerio might cause confusion on which message might be sent first. But that didn't play out here; the tempo changes were still received correctly.

However, if I did shift the note-on events back a few MIDI ticks before the tempo change events, that did change the whole ballgame (as expected). Once again, Sonar7 here, so I can't tell you with any certainty that S6 would react in an identical manner.

What I did was open up both the Tempo View and the Event List View, side by side. Then I opened up the Tempo List, and started adjusting values (double-click on a Tempo List item). In turn, I manipulated the matching Event List MBT entries. I gave it a shot, Jon. I can't reproduce the problem here, but maybe my diagnostic process can help you to find the cause.

I did an experiment with it, see what your getting at.. it does change the pitch of DP as well as the tempo .. I use reason more for doing the beats side, but the decent range for that specific loop is 68bpm onwards.. even up to the usual 174 tempo I use , it sounds ok. (as it's not messing with the pitch)

I was thinking if you use the slices instead it would be better in that aspect, but it's pitching down the sound when I go to lower tempos in DP / sonar..

Tom , in the manual I saw about "keytrack" (page 27) , would that have any effect so the slices stay the same pitch ? or is there anything in DP to turn that off..

Can you open Dimension patches with RXP? I think I have that...weird though that RXP follows the tempo changes while Dimension doesn't - and that's within Sonar?

I guess this turned into a kind of dead end: something is wrong with the Dimension/Sonar relationship. But thanks for the help, guys - much appreciated.

I'll definitely try that some time, but the way I was using the sample won't directly translate to RXP (I was using pitch shifts, half measure starts, all kinds of quirky things)...as it is I've already reprogrammed the beat with 1-shots and spent a few hours on re-doing the project. Ugh.