User's Manual
Program mode: HD-1
126
8–5: Insert FX
8–5a: Effect/EXi Fixed Resource Meter
Background information
Most hardware synthesizers offer a single, fixed 
method of synthesis, a predetermined number of 
voices, and a fixed amount of effects processing power. 
OASYS is different; it has no fixed synthesis method, 
and it shares its processing power between voices and 
effects.
This flexibility means that the system can deliver 
power where you need it the most. For instance, one 
Program may need a bunch of voices layered together, 
but not many effects; another might need complex 
effects processing, but not as many voices. In both 
cases, OASYS will automatically divide its processing 
power appropriately.
Unlike most computer-based systems, OASYS also 
monitors the overall processing power, reducing the 
overall number of voices if necessary, to make sure that 
there are never problems with the audio.
Normally, you shouldn’t need to think about this at all; 
it will just happen automatically. Sometimes, however, 
it can be convenient to know how the system is 
allocating its resources. That’s what this meter is for.
The resource meter
The resource meter shows how the OASYS processing 
power is being used, as an approximate percentage of 
the total available power. There are three main 
categories: FX, EXi Fixed, and Free for Voices.
Note: the displayed values are rounded to the closest 
1%, but the internal values have a much finer 
resolution. This means that you may sometimes add an 
effect, but see no change in the resource meter.
FX shows the percentage of the total processing power 
being used for the IFX, MFX, and TFX. This will vary 
depending on the specific effects being used.
If an effect has been assigned to an IFX, MFX, or TFX, it 
will take up the same amount of processing resources 
even if it is turned Off or bypassed. If you want to free 
up the processing resources, change the selection to 
000: No Effect.
EXi FIXED shows the percentage of the total 
processing power used for the fixed components of EXi 
instruments. “Fixed” means that part of the EXi starts 
using processing power as soon as the EXi is loaded, 
before playing any notes; this includes the built-in 
effects of the CX-3, for example.
Only some EXi include fixed components; for instance, 
the CX-3 does, but the AL-1 does not. For information 
on other EXi, see their individual documentation.
For more information on EXi fixed resources, please 
see “CX-3 & STR-1: Limitations on EXi fixed resources” 
on page 326.
FREE FOR VOICES shows the percentage of the total 
processing power remaining after the FX and EXi fixed 
components. This power is available for playing 
synthesizer voices.
When Free for Voices is at 100%, you can achieve the 
maximum polyphony–for instance, 172 voices of the 
HD-1, 96 voices of the AL-1, or 172 voices of the CX-3. 
When more effects or EXi fixed resources are being 
used, polyphony will be reduced accordingly.
8–5PMC
8–5a
8–5b










