[Ardour-Users] "Set tempo from region" broken?
paul at linuxaudiosystems.com
Tue Aug 28 06:21:24 PDT 2012
Tempo/meter maps in Ardour2 are fundamentally broken the moment you start
to do "wierd" stuff. The breakage may not show up until later. If you need
to play around with variable tempo/meter, Ardour3 beta5 is in substantially
On Mon, Aug 27, 2012 at 7:42 AM, Kevin Thoma <kevin.thoma88 at gmail.com>wrote:
> That's bad news... But if it's not supposed to be valid, why does it
> appear to work perfectly until I undo stuff?
> And how would I go about using time signatures to make sure each tempo
> change starts at a new bar?
> Anyway, thanks for the heads up!
> On Mon, Aug 27, 2012 at 7:08 AM, Arve Barsnes <arve.barsnes at gmail.com>
> > On 27 August 2012 02:57, Kevin Thoma <kevin.thoma88 at gmail.com> wrote:
> >> Hi everyone,
> >> I was going to report this issue to the bug tracker on ardour.org but
> I seem
> >> to be the only one with this problem, so I decided to ask here first to
> >> if it's something on my end (because I feel like if a feature was this
> >> broken to everyone else, I would have found something about it on the
> >> net/forums)...
> >> So I recorded a drum track that wasn't played to a click track, and am
> >> trying to get the grid in ardour to match the (variable) tempo of the
> >> drummer. In theory, this works fine. I split up the whole performance
> >> one bar regions, then use the "set tempo from region=Bar" function to
> add a
> >> new tempo marker to the beginning of each region. Everything's fine
> until I
> >> restart ardour, at which point the tempo markers are all over the place,
> >> rendering all previous manual tempo setting useless. After the restart,
> >> first tempo change marker "snaps" to the beginning of the next bar in
> >> tempo. So if the global tempo is 120bpm and I set a tempo change marker
> >> bar 3, beat 2 at that tempo, after a restart of ardour the tempo marker
> >> - wrongly - be at bar 4, beat 1. For some reason, the newly set tempo
> >> still doesn't change with the beginning of the next bar or region
> (where I
> >> originally set a second tempo change marker), but stays the same for
> six or
> >> seven bars, after which my original second tempo change will occur (and
> >> on for the remaining tempo changes).
> >> The same falling-out-of-alignment happens when I "undo" the placement
> of a
> >> tempo marker, and even "redo" won't fix it. Obviously, this means I
> >> use the function, because the information it generates seems to corrupt
> >> saving. Any ideas what could be happening here? I'm using ardour 2.12
> >> can reproduce this behaviour in a new session every time.
> > There was some change a while back, making tempo markers valid only at
> > the start of bars. Not sure why the change was made, but there you
> > are. Your best bet at the moment is probably to use time signatures to
> > make sure each tempo change starts at a new bar.
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