Akai MPC 60 Operator's Manual download pdf (Page 21)

Chapter 2: The Basics

Page 15

Sound

Each individual sampled recording in the MPC60 is called a sound. A

sound could be a recording of a single strike of a snare drum or cymbal,

or a sound effect. Sounds are sampled in a proprietary 12-bit non-linear

format at a sampling rate of 40kHz and can be any length up to the limit

of sound memory. A maximum of 128 sounds can reside in sound

memory.

Pad

When sounds are loaded into the MPC60, each pad plays a particular

sound. Though there are only 16 pads, the MPC60 can hold many more

than 16 sounds, To access more than 16 sounds from the pads, the

MPC60 provides four banks of pad assignments permitting up to 64

sounds to be played from the 16 pads. Only one bank can be active at a

time. The four banks are named A, B, C, and D, and the pads are

numbered 1 through 16. The 64 bank/pad combinations are named by

combining the bank letter (A–D) with the pad number:

Pads in bank A: A01 through A16

Pads in bank B: B01 through B16

Pads in bank C: C01 through C16

Pads in bank D: D01 through D16

Each of these 64 bank/pad combinations (A01–D16) is referred to as a

pad.

Notice that sounds are not assigned directly to pads, but rather to MIDI

Note Numbers. In order for a pad to play a sound, it is first assigned to a

MIDI note number, then that note number is assigned to a sound. This is

described further in the “MIDI Functions” and “Creating and Editing

Programs” chapters of this manual.

Note Number

In MIDI terminology, note number refers to the element in a MIDI Note

On event that supplies the pitch of the note. The note number range is

from 0 to 127. For example, if Middle C is played on a MIDI keyboard, a

Note On event is sent out over MIDI containing note number 60; the

receiving sound generator interprets this as Middle C and plays the

appropriate pitch. If the sound generator is playing drum sounds, the

note number is not used for pitch, but rather to select which drum will

play—one key for bass drum, one for snare, one for high tom, etc.

This system of using MIDI note numbers to select drums is used in the

MPC60’s sound assignment system. In programs (described below),

sounds are assigned directly to one of 64 MIDI note numbers (35–98). In

sequences, drum notes are also assigned to one of 64 note numbers

(35–98) to indicate which sound to play. Because of this assignment

method, there are many data fields in the MPC60 called Note, in which

you enter either the note number you wish to assign in a program, or the

note number you wish to edit in a sequence’s drum track. (For easy

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Akai MPC 60 Operator's Manual Page 21

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