The MIDI in this system is crude and very cool all at the same time. I features a Lexicon LUSP implementation which allows very detailed control. The will be the eventual connection to a glass or remote interface. I haven't had much to time to test it (or implement parts of it) but the new Lexicon foot pedal (MPX RG2) will be an excellent controller for this software. I should be able to put some very nice hooks in. Stay tuned.

For information on LUSP, refer to the LUSP section on page 16.

7.1. "Continuous Controller" Map
Please note that this map is only the default state on powerup (no NV memory). The running map can be different if the Learn Mode was used.

0	Slap Time	0-127
1	Slap Level	0-127
2	Click Level	0-127
3	Channel 1 Level	0-127
4	Channel 2 Level	0-127
5	Channel 3 Level	0-127
6	Channel 4 Level	0-127
7	Channel 1 Pan	0-127
8	Channel 2 Pan	0-127
9	Channel 3 Pan	0-127
10	Channel 4 Pan	0-127
11	Channel 1 Select	any value
12	Channel 2 Select	any value
13	Channel 3 Select	any value
14	Channel 4 Select	any value
15	Page 1 Select	any value
16	Page 2 Select	any value
17	Page 3 Select	any value
18	Page 4 Select	any value
19	Loop Function	0,127
20	Layer Function	0,127
21	Make Room Function	0,127
22	Replace Function	0,127
23	Mute Function	0,127
24	Fade Function	0,127
25	Destructive Fade Function	0,127
26	Active Channel Trigger Function	0,127
27	All Channels Trigger Function	0,127
28	Delay Function	0,127
29	Reset Function	0,127
30	Toggle Main Mute (Bypass)	0,127
31	Tap	0,127
32	Reset	0,127
33	Toggle Fade	0,127
34	Dry Level	0-127
35	Echo Divide	1-127
36	Echo Feedback	0-127
37	Number of Beats	1-127
38	Number of Repeats	0-127 (0 = infinite)
39	Output Level	0-127
40	Fade Rate	0-127

0 through 10 use continuous values from 0-127. Any value sent to 19 through 33 will select the channel or page. Transitions from 0 to 127 toggle the functions for 19 to 33. This is a real rough quicky system.

7.2. "Program Change" Control Map
This is roughly the same map as the JamMan:

0	1	Tap
1	2	Loop Reset
2	3	Bypass
3	4	Toggle Replace
4	5	Toggle Layer
5	6	Click On/Off
6	7	Channel Fade
7	8	Main Fade
8	9	Slap On/Off
9	10	Start/Stop
10	11	Tap
11	12	Select Page 1
12	13	Select Page 2
13	14	Select Page 3
14	15	Select Page 4
15	16	Stop/Start loop
16	17	Select Channel 1
17	18	Select Channel 2
18	19	Select Channel 3
19	20	Select Channel 4

7.1. MIDI Learn

The system also contains a learn mode for the following controls:

Slap Time

Slap Level

Click Level

Channel 1 Level

Channel 2 Level

Channel 3 Level

Channel 4 Level

Channel 1 Pan

Channel 2 Pan

Channel 3 Pan

Channel 4 Pan

You turn on the Learn Mode, select one of the previous parameters and send the system MIDI. If you have something that generates controller data on a single MIDI channel, you can very quickly connect up the JamMan to the controllers.

7.1.1. Turn on Learn Mode

Select a parameter. Turn the mode knob to select one of the indictated parameters. The slap and click are learned immediately.

The Channel and Pan take a bit more work.

• Turn the MODE knob to "Channel"
• Turn the SELECT knob to actually select the channel you want to program

selected "Channel". )

• Turn the MODE knob to "Level"
• Feed the system continuous controller data you want to assiciate with that parameter.
• Baste with a nice thick gravy and reduce heat

Because the learned controllers are not saved when the system powers down, it's best to program the controlling unit to the defaults for the controllers if you can. That way you won't have to mess with it each time you use it. The Learn Mode is best used in emergencies, like when the generating system is unbelievably hard or impossible to program. The Lexicon MRC works pretty good but I'd prefer something like the Peavy ___ controller.

The JamMan board was actually laid out for a EEPROM device but it was never installed for cost reasons. Probably a bad decision in retrospec but we really wanted to bring it in at a low price. The device can be easily installed if you have any soldering skills at all. You basically solder in the EEPROM (8 pin DIP) and, I believe, a resistor. The current software doesn't use it but it pretty easily could.

7.2. MIDI Indicator

The presence of incoming MIDI data is indicated by the decimal point on the number display.

7.3. LUSP

LUSP refers to the "Lexicon Universal SysEx Protocol" which was developed during the MPX 1 project. Though we have not gone public with the acronym, we have been using the protocol on all new MI products and probably will for now on. The intention of LUSP was to develop a single protocol that could be applied to all our products.

LUSP uses the concept of tree stucture not unlike a directory tree of a hard disk where, directories become menus on the system and files become parameters. So far, the protocol has worked very well on the MPX 1 but we wanted to check it on a fundamentally different type of system, so I implemented it on this new JamMan software.

I have begun work on a Windows based tool for the JamMan using LUSP but it's still in the early stages as I am trying to focus on the actual JamMan code. Ideally, an editor written in Java would probably be best because of it's platform independence but I'm not sure if it provides access to the MIDI ports. Anyone interested in helping out here should contract me directly (bsellon@lexicon.com put LUSP in the subject).

Some of the basic information about LUSP can be derived from the "MPX MIDI Implementation" Lexicon part #____ (email ghogan@lexicon.com for a copy).