Vienna Ensemble 5, Руководство пользователя

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Vienna Ensemble
– User Manual
Vienna Ensemble Service
A Note on Multiprocessing

There are some general guidelines to follow when using Vienna Ensemble on a system with multiple
cores. The general rule to follow is that the optimal number of threads on a system should be equal to the
number of virtual cores present.

Vienna Ensemble , like most other hosts today, offers multi-threading. This means that it runs instruments
and plug-ins in parallel using several different threads, which allows to utilize several cores on the system.
Vienna Ensemble Service will generally perform best when running as few instances as possible . With
the VST3 / RTAS /AAX Service Interface plug-in, this is possible to achieve by increasing the number of
midi ports per instance (see below).

Using the AU or VST2 plug-ins, you might be required to run several instances to work around the 16-
MIDI-channel limitation of these standards.


As you are running a sequencer on the same machine as Vienna Ensemble , you could lower the number
of threads for Vienna Ensemble , to represent the estimated load of Vienna Ensemble versus the load of
your sequencer. In a system with 8 virtual cores and an estimated even load between sequencer and
Vienna Ensemble , a good starting point would be to set Vienna Ensemble to 4 threads (if running a
single instance).

When running more than one instance of Vienna Ensemble , the number of threads per instance should
be lowered accordingly.