Roland XV-88 Manuale Utente

The XV-88 is able to play up to 128 notes simultaneously. The 
following paragraphs discuss what this means, and what will 
happen when more than 128 simultaneous voices are 
requested from the XV-88.

The XV-88 is able to play up to 128 notes simultaneously. The 
polyphony, or the number of voices (sounds) does not refer 
only to the number of sounds actually being played, but 
changes according to the number of tones used in the 
Patches, and the number of Waves used in the tones. The 
following method is used to calculate the number of sounds 
used for one Patch being played.

(Number of Sounds Being Played) x (Number of Tones Used by 
Patches Being Played) x (Number of Waves Used in the Tones)

For example, with a Patch combining four tones, each of 
which uses two Waves, the actual number of sounds being 
played comes to 16. If you are using the XV-88 in 
Performance mode to play an ensemble, count the total 
number of Tones used by all the Parts using the following 
formula.

When the XV-88 is requested to play more than 128 voices 
simultaneously, currently sounding notes will be turned off 
to make room for newly requested notes. The note with the 
lowest priority will be turned off first. The order of priority is 
determined by the 

 setting.

Voice Priority can be set either to LAST or LOUDEST. When 
LAST is selected, a newly requested note that exceeds the 128 
voice limit will cause the first-played of the currently 
sounding notes to be turned off. When LOUDEST is selected, 
the quietest of the currently sounding notes will be turned 
off. Normally, you will set Voice Priority to LAST.

Since Performance mode is usually used to play an ensemble 
consisting of several Patches, it is important to decide which 
Parts take priority. Priority is specified by the 

 

settings. When a note within a Patch needs to be turned off to 
make room for a new note, the 

 setting of the 

Patch will apply.

The XV-88 has a 

 function that lets you 

reserve a minimum number of notes that will always be 
available for each Part. For example if Voice Reserve is set to 
10 for Part 16, Part 16 will always have 10 notes of sound-
producing capacity available to it even if a total of more than 
128 notes (total for all Parts) are being requested. When you 
make Voice Reserve settings, you need to take into account 
the number of notes you want to play on each Part as well as 
the number of Tones used by the selected Patch. (p. 53)

It is not possible to make Voice Reserve settings that 
would cause the total of all Parts to be greater than 64 
voices.