the XBase HiHat, Rim, Clap, Ride and Crash are samples stored
as 8 bit data on a chip. Xrom is a circuit that replaces this
chip and adds four times the memory. There are four sample banks
available which can be selected by holding the button SHIFT/FUNC
while pressing ENTER one to four times. What samples are on the
extension? It is your choice! Samples can be loaded over MIDI
Sysex - you create your own sample banks.
three LEDs can be mounted in the case which will show you the
status of the module. Two LEDs for the bank number, one for the
general status and sample transmission.
TR-808, TR-606 or RZ1? No problem: load the samples into your
XBase and push the ENTER & SHIFT buttons one to four times
(depends on desired bank number). Done!
the converter software, audio files can be converted into the
Sysex format and then sent to the XBase using a MIDI software
for PC or SysExLibrarian
a 16 bit wave file into the converter, select the destination
in the XRom memory (the XBase sample, that will be replaced) and
convert the sample into a Sysex file.
The software also enables you to join several files to create
complete banks which can be uploaded in one big file. For this
purpose, the merger - intergrated in the software - is used.
Uploading a bank takes less than one and a half minutes (depending
on your MIDI interface) and can be done in every situation (even
while the XBase sequencer is running but then, sound becomes distorted).
lenght is adapted automatically by the software depending on the
selected sample. Files that are too long are cut at the end, those
that are too short are extended with silence. It is an advantage
to cut the samples and adjust the volume using a software like
Wavelab or alike.
A Jomox XBase 09 (Airbase, XBase SE etc. won't work), the XRom
DIY Kit and experience in soldering.
Unfortunately, the EPROM in the XBase is not mounted in a socket
so that it needs to be desoldered first and then replaced by a
standard IC socket. This is the only tricky part, since desoldering
a 32 pin IC is not easy and the XBase may be damaged if not carefully
the mounted XRom board is stuck into the IC socket and the MIDI
connection (no additional connector
is needed) and the two buttons are internally wired with
circuit can be unmounted easily and be replaced by the original
EPROM (in case this one survived the desoldering process :-))
module is stuck onto the board and stays removable (beta version)
module mounted in the XBase
information about soldering and mounting the board can be found
in the downloadarea.