[LAD] External midi sync

Tim E. Real termtech at rogers.com
Sat Jan 23 06:23:48 UTC 2010


On January 22, 2010 05:31:11 pm you wrote:
> Tim E. Real wrote:
> > On January 22, 2010 05:04:25 pm you wrote:
> >> On Fri, Jan 22, 2010 at 4:37 PM, Tim E. Real <termtech at rogers.com> wrote:
> >>> Hi, some of you might like to know...
> >>>
> >>> All the discussion of tempo maps and sync in the Jack lists forced me
> >>>  to get off my butt and finally fix MusE's midi sync in.
> >>> (Someone asked recently in the Jack lists if there are any apps
> >>>  which sync properly. Here is one answer).
> >>
> >> here's another:
> >>
> >> http://ardourmidi.wordpress.com/page/3/
> >>
> >> i don't know how much variable tempo testing Hans did; perhaps he will
> >> chime in.
> >
> > Are the midi (pianoroll) features in Ardour's releases now?
> > When I install my distro's package I still can't seem to find them.
>
> It's Ardour 3 ;).
D'oh! No wonder I could never find it. Sorry.
(Those posted Ardour graphs remind me of Phase Locked Loop
 circuits' error control voltages.) 

I can imagine sync was a tougher nut to crack in Ardour.
MusE's ticks per quarter note is fixed at 24, although
 the 'frames per quarter note' (hence division) is variable.
And you'd want sub-tick (frame) resolution in an app like Ardour.

I want to get our MTC code working. I've got the rate
 detectors working and have monitored input from Ardour Ok.

Question: Ardour supports many different timecode fps
 but MTC only has two bits for the fps.
How are these other fps supported? Not for MTC?

Tim.



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