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Re: Help needed w/echoplex ARRAY



At 10:03 08/01/2007, you wrote:
>At 03:33 AM 1/7/2007, a k butler wrote:
>
>>>We designed the Echoplex to support this sort of use, it should work ok.
>>
>>It didn't work when I tried it ( at Mathon, with Matthias).
>>
>>I had my 2 edps Brother synced,
>>both Sync=Out
>
>there's your problem. If you are trying to receive clock, Sync=IN. 
>(on both units). Why would you set it to Sync=out if you are trying 
>to receive sync?

er..
because I read on LD that you had to use sync=Out to make brother-sync 
work :-)
There were quite a few posts at one time.

or was it the Loop3 manual?
which says
"All Echoplexes using Brothersync should set Sync=Out"

and

"Sync=In should not be used for BrotherSync"

I don't remember, but I think I did try Sync=In and got it to work.
(may have removed BrotherCable)
This wasn't in a test situation, but while playing with a roomful of 
noisy loopers.



>>I don't remember, as it was a while back and I didn't midi-sync again.
>>...but I think I got around it by setting EDPs to Sync=In
>>(may have taken out the brother sync)
>
>no, that's what you are supposed to do. BrotherSync works just fine 
>with Sync=IN, Out, or OuS.

Yep :-)
just checked here, and have the stereo pair running with both on Sync=IN
Works just as well as with Sync=Out



I don't have it hooked up to check how they perform with incoming clock 
though.
Would the Midi-sync override the BrotherSync?
( In which case I'd be unsurprised by a haas effect changing on each sync )





>>Sync=In disables brother sync ( as far as I know)
>
>nope. We designed it to support all these cases transparently.

Right


>>>There are other ways to sync as well. For example all the units 
>>>could be connected with BrotherSync, which allows any of them to 
>>>set the tempo for the others. This is especially nice for group or 
>>>band situations.
>>
>>...but brother-sync is problematic for more than 1 EDP
>>...isn't it?
>
>only if you get up to maybe 12 or more. I forget what the limit is 
>but nobody ever reached it so far as I know. The sample clock sync 
>doesn't work so well with multiple units, but usually that only 
>matters for stereo.

which is what Bob is asking for.
8 edps as 4 stereo pairs

>The BrotherSync part for jamming with multiple echoplexes should work 
>fine.

Jamming with others, when you have a stereo pair, has been a problem 
though.
I hope to get it working if Bernhard Wagner brings his edp over on 
his next trip here.

Starting a stereo pair doesn't produce 2 edps with exactly the same 
loop-start time,
there's a slight delay due to the midi connection.
They have exactly the same loop length, but are offset (although the 
audio itself is accurate)
(hence the dramatic haas effect when reversing a stereo pair)

I checked this out a while back, and can't re-check now, but I think 
this means that
the Sync pulses from the 2 edps don't coincide.

trying to sync the 3rd edp to them can have 2 possible results
1) loop slightly too short, by the amount of offset
2) (rare) very short loop equal to the amount of offset


>kim

thanks
andy

>