1 - Voice Conservation
1 Voice Conservation
Do you find that your EmulatorX/ProteusX is dominating your CPU usage? Is
your voice count meter showing 60-100 voices, even when playing single
presets? Are notes clipping whenever you play a multi-timbral sequence?
Fear not, the remedy is here!
The Poly Key options (located in the Voice Processing page) limit the number
of times a voice can be played when the same key is repeatedly pressed. With
Poly All selected (the default setting), it’s easy to chew up large numbers of
voices without even realizing it. This option creates a type of chorus effect
which is sometimes desirable, but is very wasteful of the available (and finite)
polyphony. By selecting one of the Poly Key groups, the preset will use far fewer
voices and usually without any reduction in sound quality.
Your library of EmulatorX/ProteusX sound banks can be easily modified to be
MUCH less wasteful of the available voices.
To Conserve Voices in a Preset:
1. Select the preset you wish to modify.
2. Play a single key on your MIDI keyboard and check the indicator at the
bottom of the window to find out how many samples are assigned to each
key.
Number of Samples Playing
3. Click on the (+) symbol in the Tree to open the modules for the preset.
4. Click on the Voice Processing icon . The Voice Processing (synthesizer controls) module appears.
5. Check to make sure the Voice Selector reads “All”. This is to make sure that the changes you make will affect all voices in the preset.
EmulatorX/ProteusX Tutorial 1
1 - Voice Conservation
6. Press the Assign Group button. The popup menu shown below appears. (The Poly Key options are highlighted for clarity.)
7. The Poly Key options limit the number of times a voice can be played when
the same key is repeatedly pressed. Poly Key 8 groups allow 8 voices per
key (mono or stereo); Poly Key 1 groups only allow a single voice per key
to be played (mono or stereo).
8. Start with a Poly Key Group twice the number of the samples used by a
single key. If this sounds too thin, try three times the samples used by a key
and so on. Poly Key Groups of less than the number of voices per key will
probably change the sound of the preset in an undesirable way.
9. Experiment with the different group numbers to find one that works best for the particular preset.
The different letter groups (A-B-C-D) allow you to assign different Poly Key
Groups to multiple voices assigned to the same ke
2 EMU Systems, Inc.
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