Bc2000 (for the BCF2000 & BCR2000)

Hi all,

anyone out there using a Behringer BCR2000 to control the P12 with NRPN codes? The rotary encoders are working great but I'm having problems getting the buttons to function properly.

For example, with OSC1 sync...no matter what value I send to NRPN 11, all it will do is turn the Osc1 Sync On, nothing I send will turn it off. I've tried all variations of the 'toggle on' message, sending param1's of 0, 1, or 127 and param2's of 0, 1, or 127 with no success. Below is what Midi-Ox shows I'm sending...line 3 shows the "On" value of 127 (or 7F) and line 6 shows the "Off" value of 0. Problem is, the "Off" value doesn't turn the OSC1 sync off.

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT
0000CAAB 1 -- B0 63 00 1 --- CC: NRPN MSB
0000CAB3 1 -- B0 62 0B 1 --- CC: NRPN LSB
0000CAB3 1 -- B0 06 7F 1 --- CC: Data Entry MSB
0000D837 1 -- B0 63 00 1 --- CC: NRPN MSB
0000D844 1 -- B0 62 0B 1 --- CC: NRPN LSB
0000D844 1 -- B0 06 00 1 --- CC: Data Entry MSB

So, anyone else having this problem? If not, can you tell me what values you're sending from the BCR2000 buttons?

Thanks!
Dennis

Actually, controller 38 (CC LSB) is optional, and not required by MIDI.  An LSB need only be sent to "fine tune" the MSB.  If the MSB accurately conveys the value, the LSB need not be sent. 

For the logical value of "off" (presumably zero) and a value of "on" (presumably any non-zero) the MSB should be sufficient.  So, I suggest your Prophet is the device at fault here, not the BCR2000.

Apparently the Prophet (incorrectly) insists on receiving both the MSB and LSB for a value of zero (both of which would simply be all zero bits) -- in order to recognize "off" -- when it should be happy with just the MSB.

Btw, I would not surprised if a few rare positions of the rotary dial also transmit only the MSB (that is, when the LSB bits for the value are all zero and thus would add no information if transmitted).

- Matt

Great news...I got if figured out...well, mostly. I've been able to use the MountainUtilities editor to send the proper custom output sysex to turn the P12 parameter for NRPN 11 on and off from a button.

On: $B0 $63 $00 $62 $0B $06 $00 $26 $01

Off: $B0 $63 $00 $62 $0B $06 $00 $26 $00

Now I'm wondering if the button toggle feature is available in the custom output mode? I've been able to turn the parameter on OR off from a single button but not toggle through both on AND off states with a single button. I've tried all possible combinations in the editor but can't get the buttons to toggle between 2 unique sysex strings...is this possible?

Thanks!

Wanted to send a quick update...I now have 14 bit NRPN toggle buttons working! Got a great helping hand from someone on the Prophet12 forum who suggested I use the "val" keyword in my custom output button code. For NRPN code 11, I'm now sending:

$B0 $63 $00 $62 $0B $00 $26 val

and by setting the Custom output tab "Toggle" option and setting the "Value 1" knob to 0 and "Value 2" to 1, the button now sends alternate on and off messages to the NRPN code.

True 14 bit NRPN buttons! Hurray!