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Old 02-01-2011, 01:39 AM
sean sean is offline
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Default Experiencing Major Midi Sync Issues

Since downloading the latest Num build, I cannot get it to sync with Logic any more. I'm running SE in stand alone mode, and syncing to Logic's clock via an IAC bus. When I start the clock in Logic, Num wildly fluctuates all over the place at random tempos. This set up was working fine up until I downloaded the latest build, the issue also occurs on my older projects. The only change to my system recently is that I installed the Soundflower app -- I wonder whether it's interfering with my IAC device somehow (it shouldn't be since it only deals with audio and not midi, but still).

Any ideas?
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Old 02-01-2011, 01:47 AM
sean sean is offline
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Actually "fluctuates" would be an inaccurate description -- Numerology literally cycles through its entire tempo range, from 0 to maximum then back again ad infinitum.

Also, it's taken to shutting down suddenly.
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Old 02-01-2011, 01:50 AM
sean sean is offline
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BTW my system is a 2.2 GHz Intel Core Duo, 2GB ram, OS X 10.5.8. Running Logic 8.

I've had a fair few problems with Numerology since buying a license in December -- not saving projects, not shutting down completely, timeline glitches -- so I'm wondering if it might not be my system that's the problem?
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Old 02-01-2011, 08:51 AM
jim jim is offline
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Nothing that I can recall has changed in the sync sub-system -- mostly it is an algorithm built into OS X called Core Audio Clock. I ran a rough sync test with Logic over IAC and build 32 and didn't see anything obvious other than a very short tempo fluctuation when Logic's transport is looping.

In general, I consider Logic to be a lousy sync source -- Logic does not timestamp MIDI clock events, which means that by the time Numerology gets them, they have a huge amount of jitter. CoreAudio Clock does a great job of syncing to them, but I find it non-optimal in general.

Regardless, you shouldn't be seeing the behavior that you have. Email me (jim <at> five12 <dot> com) and I will get you a debug build so we can track it down.

As for the other issues, they need to be addressed individually. The way to start is for you to email me any and all crash logs you have. They will be located in <your home dir>/Library/Logs/CrashReporter, or on 10.6.4 or later, <your home dir>/Library/Logs/DiagnosticReports.

Thanks,
Jim
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  #5  
Old 02-01-2011, 10:04 AM
vanhaze vanhaze is offline
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I am running also build 32.
Syncing from Logic Pro 9.1.3 to Numerology through IAC bus.
NO sync problem for me, besides the little glitch in tempo when Logic's playhead jumps when in cycle mode, as Jim mentioned also.


Just for you 2 know !


Best,

Rob.
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  #6  
Old 02-01-2011, 04:44 PM
Logos Lover Logos Lover is offline
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Quote:
Originally Posted by vanhaze View Post
I am running also build 32.
Syncing from Logic Pro 9.1.3 to Numerology through IAC bus..
Is there a benefit of syncing through the IAC bus, as opposed to syncing with ReWire?
I tried to get my head around the IAC bus sync method, but it may as well have been written in Chinese so i just left it, and sync Numerology to Logic Pro 9 using ReWire.
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