Akai S1000 Series Operator's Manual download pdf (Page 17)

Introduction

Keygroup

The term for a collection of a number of parameters of up to four samples - their name,

keyspan, filtering, envelopes, etc.

Keyspan

On the S1000, a keyspan is the range of the keyboard on which a sample can be played.

LFO

Low Frequency Oscillator - an oscillator which operates at too low a frequency to produce

an audible tone, but is used to modulate such parameters as pitch, pan position, etc. The

S1000 has a number of LFOs implemented in software.

Looping

In sampling, looping refers to the process of taking a portion of a sample and repeating it.

The 51000 allows eight such loops to be present in a sample, allowing incredibly subtle

variations on the basic sampled sound.

Multisampling

When sampling a sound, replaying it at a radically higher or lower pitch will produce

strange and unnatural effects. To overcome this problem, samples should be taken from

across the pitch range of an instrument and assigned to different keyspans across the

keyboard. This is known as multisampling.

Operating system or Operating software

Without a computer program to send signals through the maze of chips and circuitry

which make up the hardware of the S1000, the machine would be useless. The program

which contains the instructions to respond to MIDI messages, buttons and controllers, and

display messages, etc on screen (as well as to record and play back sounds) is known as

the operating system. This is automatically loaded when the S1000 is powered up, either

from chips inside the S 1000, or, if a disk containing a later version of the operating

system has been placed in the drive, from disk.

Page

On the S1000, a page is the set of information and parameters shown at any one time on

the display screen. Pages can be entered by pressing the named buttons (

SELECT PROG ,

MIDI, etc), or the soft keys whose legends are displayed at the bottom of a page.

Parameter

A value which can be changed (for instance length, tuning, upper limit of a keyspan) as

displayed on the screen of the S1000.

Positional crossfading

See Crossfading.

Program

The term for a collection of keygroups which will all be selected together when the

program is selected. Different programs can be assigned to different MIDI channels, so

that when a

sequencer is connected to the S1000, multi-timbral output is possible.

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Akai S1000 Series Operator's Manual Page 17

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