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Re: Repeater: Persistent Problems with Sync

At 01:23 PM 9/10/2001, you wrote:
>so much for that theory...
>kim, you said repeater always sends midi clock.
>does it do this even if it is set to synch to midi?

ok, I checked this further. Yes Repeater always sends midi clock out it's 
output even when it is in Midi Sync mode, where you would expect it only 
receives midi clock. In Midi Sync mode the clock it sends out is not a 
direct pass-through of the input clock either. It is related to Repeater's 

I was curious what happens then when you change tempos. The repeater tempo 
doesn't directly follow the input clock, ramps at it's own rate to the new 
tempo. So if you make a radical tempo jump on your midi clock master, 
Repeater will ramp there and can take quite a bit longer to reach the new 
tempo, especially if you are slowing down. since tempos of repeater and 
other devices are different during this ramp, they end up completely out 
sync when repeater finally settles to the new tempo. So that's not real 

The repeater midi clock output during this tempo change ramps with the 
repeater's tempo. Or at least, that's what it seems like they wanted it to 
do. Actually it jumps all over the place while repeater is ramping in 
tempo, so my drum sequence sounds like a drummer that just got hit with a 
beer bottle during this time. It's kinda nuts. when Repeater finally 
settles on the tempo, the clock straightens out to a regular pulse (except 
the 23rd one :-). of course, now the midi device after the repeater is 
slipped in time from the device before the repeater, so you will have to 
restart everything to line it up again.

I guess this is why I saw a number of instances on the electrix forum 
they were recommending to use midi thru for devices down stream of 
Repeater. :-)


Kim Flint                     | Looper's Delight
kflint@loopers-delight.com    | http://www.loopers-delight.com