Long BPM-Synced DXV clips

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pw144
Posts: 18
Joined: Thu Mar 04, 2010 09:36

Long BPM-Synced DXV clips

Post by pw144 »

Hello Folks,
I'm having some problems keeping things in sync using MIDI triggered videos - fired from Ableton and then kept on track by the clock.

The drift or lag changes slightly each time, and I wondering if I'm pushing Resolume a bit too far.

Many of the clips are between 5 and 8 minutes. Is this a ridiculous length in most people's experience?

Much of the BPMing in Resolume involves much smaller clips I realise, but I was under the impression that it was robust enough to cope with it.

The problem is worse with faster BPM speeds. - There's a fair amount of Lip-Sync, so the problem becomes pretty noticable after a while.

The videos are more often (but not always) drifting to be too early.

I'm running a very fast Dell laptop and nothing appears to being put under pressure hardware wise.

JediRemi
Posts: 2
Joined: Sat Jun 19, 2010 19:12

Re: Long BPM-Synced DXV clips

Post by JediRemi »

In one of the resolume demo they use the movie cllip of star guitar, which is 4 min long, without problems.

Is the sound encoded in the video or it s a separate wav ?

pw144
Posts: 18
Joined: Thu Mar 04, 2010 09:36

Re: Long BPM-Synced DXV clips

Post by pw144 »

Hello there,
The DXV clips have no audio - and I'm not playing any audio from the VJ laptop.
All Audio is coming from the Ableton machine.
MIDI notes and clock arrive via a MIDI-to-USB adapter from the DJ soundcard.

Joris
Posts: 5186
Joined: Fri May 22, 2009 11:38

Re: Long BPM-Synced DXV clips

Post by Joris »

Are the videos quantized? Syncing them to a certain number of beats won't match up perfectly unless they are exactly that number of beats.

pw144
Posts: 18
Joined: Thu Mar 04, 2010 09:36

Re: Long BPM-Synced DXV clips

Post by pw144 »

We're putting a beep at specific points on the audio that is being edited to in Sony Vegas.
They are then exported with the In and Out points as close as possible to the frame on which the beeps start.

This seems like a tiny discrepency to cause such a dynamic lag / speedup?
- It's slightly different each time.

Joris
Posts: 5186
Joined: Fri May 22, 2009 11:38

Re: Long BPM-Synced DXV clips

Post by Joris »

And are these beeps set at the start of a measure or bar?

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rxfromparis
Posts: 128
Joined: Mon Nov 09, 2009 18:35
Location: Montpellier, France

Re: Long BPM-Synced DXV clips

Post by rxfromparis »

this reminds me of this thread :

viewtopic.php?f=13&t=6239

was never really solutionned ???
desktop: Windows 7 64bit , i7 920 2.66Ghz, 12Gb Ram, GTX 950 2Go, WD Velociraptor 300Go, terratec asio phase 26 usb soundcard & midi,Novation Nocturn controlpad, Akai MPK mini, and soon to come : BCR 2000 :))

vjandrea
Posts: 9
Joined: Wed Mar 18, 2009 10:55

Re: Long BPM-Synced DXV clips

Post by vjandrea »

The problem in version 3.2.0 persists! Does anyone know if it will be fixed?
I have a 16-bar synced clip that runs faster than the actual tempo!
vj andrea

----------- resident @ Jimmy'z (Monte Carlo) ----------

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bart
Team Resolume
Posts: 2234
Joined: Wed Sep 29, 2004 10:01
Location: Resolume HQ

Re: Long BPM-Synced DXV clips

Post by bart »

Can you all please send a test video to support@resolume.com so we can try it with your footage?

Thanks!

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