29 May
2009
29 May
'09
4:31 p.m.
On Fri, May 29, 2009 12:50 pm, Atte André Jensen wrote:
Hi
Long story short: I'm writing a osc2midi_clock script in chuck for
controlling sooperlooper from incomming osc messages. I have no
experience with midi clock so I had to play around with it. The
following seems to work (T for time messges (0xf8), S for start (0xfa),
x23 means "repeat 23 times"):
S Tx23 S Tx23 S etc.
It even works to the point that I can throw in clients at any time,
since the start messages resets the clock every quarter note. The two
clients I checked with are sooperlooper and renoise.
I think all the extra 'S' messages aren't necc. Start and Stop are
supposed to be transport controls, not synchronization messages. Also,
Start is not a substitute for a clock pulse. The start message means
"start on the next clock pulse (T)."
So, I think the MIDI creators intended this:
S Stop
T T T T T T T T .....
It presumes that none of the T's will be dropped and that everyone is
working off the same score. But, for your purposes, you might try the S
Tx24 like this:
S S S
T T T T .... T T T T .... T T T T
That is, your T's happen at the right time, and the synchronization
attempt with 'S' would precede the synchronization T pulse.
I have a hardware synth that's constantly sending out the T, but never
sends S.
HTH,
Gabriel
--
G a b r i e l M B e d d i n g f i e l d