Yamaha MU90R User Manual download pdf (Page 160)

APPENDIX

151

Glossary

A/D input

Abbreviation for analog-to-digital. The

A/D inputs of the MU90R allow you to process

analog inputs (such as a microphone, electric gui-

tar, CD player, or another electronic instrument)

with the digital effects of the MU90R and mix

them with the internal Voices.

Assignable Controller 1 Certain functions on the

MU90R (such as the Filter, Volume or Variation

effect) can be changed in real time by controllers

on a connected MIDI instrument. Assignable Con-

troller 1 lets you determine which controller (for

example: modulation wheel, breath controller, foot

controller, etc.) is used for that purpose.

AWM2 Abbreviation for Advanced Wave Memory 2,

an enhanced version of Yamaha’s original tone

generation system, featuring digital filters for su-

perior sound.

bank A set of Voices or programs. The MIDI stand-

ard supports up to 128 banks, each of which can

contain up to 128 Voices or programs.

edit Editing is the process of changing or adjusting

the settings of the MU90R.

EG Abbreviation for Envelope Generator, a common

control on electronic instruments that affects the

“shape” (or envelope) of the sound in time. The

MU90R provides two types of EGs: one for level

and the other for pitch.

Filter A control for affecting the frequency content

of a sound. Filters are used to selectively cut or

boost certain frequency ranges in the sound —

subtly enhancing the sound, or dramatically

changing its character. On the MU90R, the Filter

can be controlled in real time with the Assignable

Controller 1.

General MIDI (GM) An addition to the MIDI stand-

ard which effectively ensures that any General

MIDI-compatible song data can be properly

played back on any General MIDI-compatible tone

generator. The standard specifies that a GM-com-

patible tone generator must have at least 24-note

polyphony, 16-part multi-timbral capacity and 128

standard voices. The MU90R exceeds this with

64-note polyphony, 32-part multi-timbral capacity

and 779 Voices.

host computer The controlling computer in a com-

puter music system. The host computer is con-

nected to the MU90R (via the TO HOST or MIDI

terminals) and runs the software necessary for re-

cording and playing back song data, which is re-

produced by the internal sound sources and effects

of the MU90R.

LFO Abbreviation for low frequency oscillator,

which generates a low frequency signal that is

used to modulate certain aspects of the sound,

such as pitch or level. Chorus, Flanger, Tremolo,

Vibrato and other modulation effects use LFOs.

MIDI Acronym for Musical Instrument Digital Inter-

face, a worldwide standard that allows MIDI-com-

patible instruments and devices to communicate

with each other. For the instruments to communi-

cate, they normally must be set to the same MIDI

channel.

modulation wheel A controller found on most MIDI

keyboards which is normally used to control pitch

and other types of modulation. It can be used to

control various aspects of the MU90R sound by

proper setting of the Assignable Controller 1. (See

pages 70 — 72.)

multi-timbral This refers to the capacity of a tone

generator to produce several different sounds at

once. The MU90R is a 32-Part multi-timbral tone

generator, capable of playing 32 different instru-

ment Voices at once, each over an independent

MIDI channel.

Mute The Mute function of the MU90R allows you

to silence one Part to hear how all of the other

Parts sound without it.

parameter The word “parameter” refers to any ad-

justable setting of an electronic musical instru-

ment. For example, the Vibrato function of the

MU90R has three parameters: Rate, Depth, and

Delay.

Part The Voices of the MU90R are assigned to sepa-

rate Parts, and up to 32 of these Parts can sound

simultaneously. Parts are analogous to the various

instrumental parts in music: e.g., piano part, guitar

part, etc.

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