Akai MPC 60 Operator's Manual download pdf (Page 158)

Chapter 8: Creating and Editing Sounds

Page 152

Sound Compression

Sounds may be compressed to ½ their original size to save sound

memory space. This gives an MPC60 with memory expansion (26.2

seconds) an equivalent maximum sound memory of 52.4 seconds!

Compression does, however, add distortion and reduce clarity in the

treble frequencies, and can add much distortion to sounds containing a

large amount of high frequencies such as crash cymbals.

To compress a sound, press SOUNDS, then 9, then 3, and the following

screen will appear:

============ Compress Sound ===========A

Sound:Long_sound Tune: 0

Right:Snare_drum_R

Press <Do it> to compress to 1/2 size.

Tune must be 0 or more.

========================================

In the SOUND field, select the sound to be compressed, then press <Do

it>. The selected sound’s tuning is displayed in the TUNE field. (This is

the same parameter as in the EDIT SOUND screen.) During the

compression process, 120 is subtracted from the tuning in order to

compensate for the faster play of the smaller sound. Since -120 is the

lowest possible tuning, compression is only permitted on sounds with a

tuning of 0 or greater. If your sound’s tuning is below 0, you must retune

it to 0 before compressing.

After compression, save the sound to disk. It’s a good idea to save it to a

different file than the original uncompressed sound. That way, you have

the option of loading either the normal or compressed version of the

sound as needed.

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Akai MPC 60 Operator's Manual Page 158