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About simultaneous polyphony – Roland Sonar V-Studio VS-700 User Manual

Page 93

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93

Overview of the Fantom VS

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Performances

A performance has a patch or rhythm set assigned to each of

the 16 parts, and can simultaneously handle 16 sounds.

Because the Fantom sound generator can control multiple

sounds (instruments) it is called a Multi-timbral sound

generator.

fig.04-005.e

Part

A “part” is something to which you assign a patch or rhythm

set. The Fantom VS has sixteen parts, and you can assign a

patch or rhythm set to each part.

The Fantom VS can play a maximum of 128 sounds

simultaneously. The following paragraphs discuss what this

means, and what will happen when more than 128

simultaneous voices are requested from the Fantom VS.

Calculating the Number of Voices Being Used

The Fantom VS 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 patches

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 patches being played) x (Number of tones used

by patches being played) x (Number of waves used in the

tones)

For example, a patch that combines four tones, each of which

use two waves, will use eight notes of polyphony at once.

How a Patch Sounds

When the Fantom VS 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 Patch Priority setting (p. 97).

Patch 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. Usually, “LAST” is selected.

Performance

Part 16

Part 1

Patch/

Rhythm Set

About Simultaneous Polyphony

VS-700_r_e.book 93 ページ 2008年11月20日 木曜日 午後2時28分