Hello,

this is an example :

this first sysex string sends +63 on "VCF FM send to ENV3"

F0 10 02 0D 01 F7
F0 10 06 01 63 0A 02 05 00 0D 00 01 00 07 00 09
00 03 00 0A 02 00 00 00 00 00 00 0F 01 01 00 02
00 00 00 00 00 0F 01 01 00 01 00 00 00 0F 03 00
00 00 00 02 00 00 00 00 00 0F 07 00 00 00 00 02
00 00 00 0F 03 0F 00 01 00 01 00 0A 03 00 00 00
00 00 00 00 00 06 00 0F 01 0A 03 00 00 00 00 00
00 00 00 06 00 0F 01 00 00 00 00 00 00 0F 01 0F
01 0F 01 0F 03 00 00 00 00 00 00 00 00 00 00 0F
01 0F 03 00 00 0F 03 00 00 00 00 00 00 00 00 00
00 0F 01 0F 01 0F 01 0F 03 00 00 00 00 01 00 00
00 0F 00 0F 01 0F 02 0F 03 08 02 00 00 08 02 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0F
03 00 00 00 00 00 00 00 00 00 00 00 00 0F 03 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 4D F7

this second sysex string sends -63 on "VCF FM send to ENV3"

F0 10 02 0D 01 F7
F0 10 06 01 63 0A 02 05 00 0D 00 01 00 07 00 09
00 03 00 0A 02 00 00 00 00 00 00 0F 01 01 00 02
00 00 00 00 00 0F 01 01 00 01 00 00 00 0F 03 00
00 00 00 02 00 00 00 00 00 0F 07 00 00 00 00 02
00 00 00 0F 03 0F 00 01 00 01 00 0A 03 00 00 00
00 00 00 00 00 06 00 0F 01 0A 03 00 00 00 00 00
00 00 00 06 00 0F 01 00 00 00 00 00 00 0F 01 0F
01 0F 01 0F 03 00 00 00 00 00 00 00 00 00 00 0F
01 0F 03 00 00 0F 03 00 00 00 00 00 00 00 00 00
00 0F 01 0F 01 0F 01 0F 03 00 00 00 00 01 00 00
00 0F 00 0F 01 0F 02 0F 03 08 02 00 00 08 02 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0F
03 00 00 00 00 00 00 00 00 00 00 00 00 01 04 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 4F F7

I dont have an m6 but an m1000 but i took these strings from the
Emagic Soundiver matrix6 adaptation

good luck

Regards
--------------------------------------------------Env1-----Env2--Env3-----------
Andrea.TONI@... Vco1 \ | | \
Solar System Missions Sci-SM Vco2-->--Vcf-->Vca-->Ducati996
www.rssd.esa.int Vco3 / | | /
--------------------------------------------------Lfo1-----Lfo2--Lfo3-----------

Has anyone any Idea of how to send a negative sysex value to the matrix 6R Some
parameters range from -63 t o63....

There might be a (multi byte) solution

The Maker