Re: [Qtractor-devel] Wrong BPM - Resp. correct BPM, but bad time positions for note on events (and perhaps other events too)

[Ralf <ral...@al...>]

On Sat, 2011-02-26 at 12:09 +0000, Rui Nuno Capela wrote:
> On 02/26/2011 11:51 AM, Ralf wrote:
> > On Sat, 2011-02-26 at 10:45 +0000, Rui Nuno Capela wrote:
> >> On 02/26/2011 06:35 AM, Ralf wrote:
> >>> The BPM are correct, but the time positions for note on events (and
> >>> perhaps other events too) become bad, when changing the tempo. It
> >>> doesn't matter if there is an audio insert or not. Regarding to the
> >>> audio insert just the tempo after the song is loaded differ.
> >>>
> >>> $ qtractor -v
> >>> Qt: 4.7.0
> >>> Qtractor: 0.4.8.27
> >>>
> >>
> >> hmm... aha, found a time convertion glitch pertaining to midi clip
> >> editor state (piano-roll) when tempo changes--it seems that editor's
> >> offset is not converted to the new absolute position after a tempo
> >> changes, hence the slight difference in note event times ...
> >>
> >> however, if you save and reload the session, all times will be shown
> >> then correct--this is only for evidence, nor suggesting as a
> >> workaround--yep, it's a annoying bug and i'll try to squash it asap.
> >>
> >> thanks for insisting on it :)
> > 
> > :)
> > 
> 
> check if latest svn trunk (qtractor 0.4.8.28+) improves the
> situation--it closes any open midi clip editing (piano-roll) on tempo
> change but that's a lot less annoying than the prior dangerous situation :)
> 
> cheers

Version: 0.4.8.28
Build: Feb 26 2011 14:58:12
LV2 Plug-in GTK UI support disabled.
JACK Session support disabled.

I still need to disable and enable loop to get the original BPM.
Editing to 120.0 BPM and back to 118.5 BPM the notes always kept their
correct positions.

Thanx :)