Novation SL SysEx to SysEx (Roland) ? - Bome Forums Archive 2005

Wasp

2006-12-02 02:45:06

hey i just got my self a novation sl and i got realy happy that i found out it got Roland Checksum soo i finaly can control my roland V-synth XT but length of the string is not long enouth there is missing one Hex too make it able too control well that part was fixed fast i just made a code and then let it transfer the variable code as oo and the checksum as pp and that part worked super but now i got the problem where some of the parameters got the variable split into 2 soo it goes from 00 00 to 07 0F , soo it counts from 00 to 0F on first then it reset it and set next variable too 01 all the way too 06 how can i convert a 00-7F to 00 00 - 06 0F

i hope this is possiable soo i can finaly unlock true tweaking power of my V-synth XT

Peace Wasp

florian

2006-12-02 15:31:25

Hi, are you sure that it counts like this:

be the 2 MIDI numbers pp and qq, then you say it goes:

pp qq
00 00
.
.
0F 00
00 01
.
.
0F 01
00 02
.
.

etc.? Then this looks to me very much as if the second variable is only the high nibble, and the first value is the low nibble of a number from 00...7F.

Use this Translator (you need Midi Translator Pro for Rules). I made up the incoming and outgoing messages for illustration:

Code: Select all

Translator: Convert Controller message to double sysex
INCOMING: MIDI B0 07 oo
RULES:
  pp = oo & 0x0F
  qq = oo & 0xF0
  qq = qq / 16
OUTGOING: MIDI F0 01 02 03 pp qq F7

The & sign is a bitwise AND operation. How does that work? Remember, for testing you can show the log window, which will tell you exactly the result of rules, etc.

Regards,
Florian

Wasp

2006-12-02 16:59:32

shit i think i wrote it abit wrong i want a normal sysex that has one val that goes from 00 to 7F transformed it a 2 Hex that count like from 00 00 - 07 0F and it counts like this
pp qq
00 00
00 01
00 02
00 03
-----
00 0F
01 00
01 01
01 02
------
01 0F
02 00

all the way too 06 0F

i was abit tired when i wrote the last post hehe

Wasp

2006-12-02 17:09:17

yo i tried what u said but i just let pp qq shift place and it good damn works YOUR my Hero as soon the trial of the mt pro runs out i will buy it (abit poor this month) final i can mad tweak my Roland V-synth XT with my Novation SL Zero MUHAAHAHAHA

Wasp

2006-12-02 18:05:34

now for my next question how do it make it go the other way again where i transform a 07 0F into 7F soo i can send the changes on v-synth back too novation sl again

admin

2006-12-04 10:22:02

Hi,

I'm very happy to hear that it works! Now, is it really running from 00 00 to 07 0F or from 00 00 to 06 0F ? If the latter, then we'd need to change the Rules to use "real" scaling. Anyway, the way back is straight forward, just the inversion:

Code: Select all

Translator: Convert double byte sysex to Controller 
INCOMING: MIDI F0 01 02 03 pp qq F7
RULES:
  pp = pp * 16
  oo = pp | qq
OUTGOING: MIDI B0 07 oo

The | operation is a bit-wise OR operation, it combines the 2 values to one.

Let me know how it works!
Florian