[Fluxus] Fluxa sync question

[David Griffiths]

Hi Kassen,

Sorry for the delay, holiday times...

On Mon, 2011-08-15 at 23:03 +0200, Kassen wrote:
> I'm trying to implement MIDI sync for Fluxa. I now have a function
> that gets me the time of the last clock increment and one that gets me
> the duration of a midi beat, both according to the set time-signature.
> I'm getting those from within the midilistener.cpp code to avoid
> frame-rate induced latency and jitter. This seems to work ok, so far.

Super!

> However, now I need to understand how the existing sync stuff works
> and I'm having a bit of a hard time with that. The only way I can make
> sense of it is if you would be using "sync-tempo" as the last line of
> your "seq" function when performing with sync. Is that correct?

Yes, this allows us to ignore the tempo if we want, divide it by a whole
number for speeding things up, or just make it wacky during a live
performance (for example changing it every beat).

> I'm also a bit lost on the use of the "on-sync" function/variable. Is
> that one meant for debugging? I can't see any conditions under which
> that one would or could be used.

It looks like it's a debugging thing for checking messages are still
being received, I can't remember what it was used for now. 

> Sorry to bother you with this, but without the other half of the
> syncing process it's all a bit hard to understand.

Yes, none of it is that easy. Well done for sticking with it...

cheers,

dave

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