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Re: [Freewheeling-user] Nudge loops / sync



Hi JP and all,

[CCing to aubio@piem.org]

On Mon, Nov 14, 2005 at 06:27:09PM -0700, JP Mercury wrote:
> Dear Stefan,
> 
> These are good ideas. There are two types of sync I would like to implement in
> FW. One is Master Sync, where the FW timebase controls other apps, for ex
> Seq24, through the Jack transport. This works for apps which can easily resync
> to Freewheeling's time. 
> 
> But in the case of syncing to vinyl or other natural elements, FW has to
> adjust it's internal timing to match an external source (Slave Sync). This is
> more difficult to implement, and needs careful consideration.

I would suggest (again JP :) looking at aubio (http://aubio.piem.org/),
which has now a fairly good tempo detection. The beat locations could be
used to hint FW clock. Another approach will be to add a Jack Transport
control to aubiotrack.

Similarly a grid to help for small sync adjustements in FW could be
built along the onset locations.

I don't have much time to code this atm, but will be happy to help.

Bye, Piem

> 
> I hope to address both these types of Sync in the next release. 
> 
> Cheers,
> -M
> 
> On Mon, 14 Nov 2005 15:12:49 +0100, Stefan Welker wrote
> > Hi 
> > I  just made the proposal for a phase control per sample, but it 
> > seems no one needs it, so I try to explain my need for it. I use 
> > fweelin primarily to make looping sounds out of vinyl that i sync to 
> > the currently playing fweelin stuff. Unfortunately once another loop 
> > is in fweelin, i cannot correct small mistakes in sync , that show 
> > up particularly in Drum based music for example when bass drums do 
> > not exactly overlap so just like im able to nudge my turntables to 
> > get the phase of two synced records right, I would like to be able 
> > to nudge a loop. for example add or subtract a fixed amount of 
> > samples to a offset of a loop. I think dj cd players have that 
> > feature often controlled by a little joystick.
> > 
> > What do you think?
> > 
> > Stefan
> > 
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