Compact Flash File Functions; Compact Flash File Structure; Songs; Midi - DigiTech GNX4 Owner's Manual

Compact Flash File Structure

The GNX4 requires a specific file structure for organizing the different file types it uses. To utilize a
Compact Flash memory card in the GNX4 it must be formatted using the FAT16 File format.
DigiTech recommends that you format your card in the GNX4 using our internal format routine. Our
internal format routine will configure the card as FAT16. You can also format a card on a PC using Windows
2000 or XP but you MUST select the File System to be FAT (meaning FAT16) instead of FAT32 and enable
the Quick Format option. To quickly format a Compact Flash memory card, the GNX4's setup menu
provides a format function. If a Compact Flash memory card is not present in the Compact Flash memory
card slot, the format function is not available. To format a Compact Flash memory card, follow the steps
documented on page 75.
NOTE: The GNX4 is compatible with Type I Compact Flash cards only. It is not compatible
with Type II cards or IBM/Hitachi Microdrives
When you view the card's contents on your computer, you will see a main directory folder called GNX4.
Inside this directory are four sub directory folders in which you can move Song, MIDI, MP3, and Card Preset
files to and from. These sub directories are labeled as follows:

SONGS

This is the folder in which all songs or loops that are created on the GNX4 reside. Within the Songs
folder, each song is individually named. (For more information on song and track file naming conventions
see page 103.) A SETUP.XML file is created within each song folder that stores song setup information
including:Tempo, Pre-Roll, etc. Please refer to the Song Setup section on page 70.

MIDI

This is the folder in which you will place any Type 0 MIDI (.mid) files that are to be played by the GNX4's
DRUMS/MP3 player. The GNX4 plays any MIDI file that appears in this folder both to the internal drum
machine and out the GNX4's MIDI output jack. The GNX4's drum machine only responds to note
information on MIDI channel 10. If the note data was saved using any other channel, the GNX4's drum
machine ignores it.
Type 0 files contain only one track, and all of the MIDI messages (ie, the entire performance) is placed in
that one track, even if it represents many musical parts upon different MIDI channels.Type 1 files separate
each musical part upon its own track and are not compatible with the GNX4's playback engine.

MP3

This is the folder in which you will place any MP3 files you want to play back on the GNX4. The file
names will be added to the end of the user MIDI patterns that are accessed using the PATTERN button
in the Control Panel section of the GNX4.

Presets

This folder is where any user created presets that are stored to the compact flash (CF) card are stored.
The card preset file is a special format file, not separate preset files like those dumped from MIDI or
saved using the X-Edit editor librarian. Individual preset files or bulk dumps placed in this directory will
not be recognized by the GNX4. Conversely, the preset file created by the GNX4 will appear in the
X-Edit librarian thus allowing you to select and edit individual presets.
MIDI files and MP3s can use most any naming convention provided they have the .mid suffix for MIDI files
and the .mp3 suffix for MP3s added at the end of the name.

Compact Flash File Functions

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