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Logic forces processing of all outputs from multi-output ins


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Logic forces processing of all outputs from multi-output ins "to a single core".

This is a real drag when you set up several multi instruments in Logic in a multi core mac pro.

In my case I created a big orquestral template in Logic using about 13 multi instruments loaded with each corresponding Vienna Ensemble pros connected overlan to a Vienna Ensemble server inside the same mac pro. In Logics mixer, the aux channels from the multi instrumetns are the audio returns from the Ve pro server where the sound libraries are loaded, outside of Logic.

I notice that in Logic, using these auxes routed to buses in the mixer, forces all the channels to a single core, witch ends overloading the system and making it unpractical. But If you eliminate all the auxes from the multis and route all the channels outs to outs 1 and 2 then Logic engines uses evenly all the cores. Very Extrange!.

thsi seems to be a flaws in Logics audio engine, a real drag for anyone that wants to create and use multinstruments with Vienna Ensemble.


Tomás San Miguel



Mac Pro 2 x 2.93 Ghz 6 core intel Xeon

32 Gb RAM

OSX Snow Leopard 10.6.4

SATA 64 bit cache internal RAID  Drives holding the Libraries.

SATA external  Drives holding the sessions and video.

VEpro v. 7349

VI pro v. 7349

Logic pro 9.1.3 (64bits)

Sibelius 6.2







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