Bc2000 (for the BCF2000 & BCR2000)

Royce,
I figured out how to route the midi to from the BCR.
Here is my current setup.
BCR> (usb to midiox mapped to motu (usb) midi interface midi out 1>vfx
Midiox is input and output window agree.  Midi out show activity on
the motu midi interface.
When I turn the knob 49 any amount.
The VFX responds "Midi sys-ex receive error press any key to continue"
I suspect I have some sort of time issue with the vfx and receiving
sysex messages. 
When I use an editor librarian I also get trouble when trying to edit
a preset.  I often get that message.  I fear that the preset and sound
editing structure will not allow real time tweaking of this stuff.
The vfx has a compare button, basically (as far as I know)a patch
memory to compare your changes to the previous sound you are editing.
A buffer if you will to go back to if you don't like the changes.
I often got the above sysex error message when using the editor/lib
program.
If I press a button on the vfx it will reset the error message,
however, every time I turn that knob 49 it errors out.
I do not have any midi looping back, only midi input cable connected
to the vfx. 
Thoughts or ideas/recommendations of what to try next?

Thanks, Kip

--- In bc2000@yahoogroups.com, "k5kip_1999" <k5kip_1999@...> wrote:
>
> Royce,
> 
> Thanks for the jump start, so this should do the filter cutoff on
> encoder 49, correct?
> 
> I will try to get to this when/if my son takes a nap! 
> 
> I will post my results here.
> 
> Kip
> 
> 
> --- In bc2000@yahoogroups.com, "rpcfender" <rpcfender@> wrote:
> >
> > Hi Kip
> > 
> > > Please take a look at the doc I uploaded.
> > > Tell me if it is possible.
> > Yes it is a very clear sysex implimentation
> > 
> > > Then, if you can get me started a little, I will press on ahead.
> > 
> > The sysex for changing as parameter starts with the header
> > $F0 $0F $05 $00 - This is always the start for the Ensonic VFX
> > next byte is the base Midi channel $00 to $0F
> > then the command number. For changing a parameter it is $01
> > So a header for parameter when on channel 1
> > 
> > $F0 $0F $05 $00 $00 $01
> > 
> > You need to determine the address offset in the parameter list.
> > Section 3.1.2  says
> > Command type (parameter $01)
> > Voice number 0 to 5
> > Parameter Page 0 to 31
> > Parameter slot 0 to 5
> > 
> > $F0 $0F $05 $00 $00 $01 $Voice $Page $Slot
> > 
> > 
> > The next bit is a bit confusing.
> > There are 2 8-bit data bytes, but Midi data bytes can only be 7-bit so
> > the 2 bytes are broken up and sent as 7 bits
> > 
> > HHHHLLLL  8-bits of data becomes
> > 0000HHHH
> > 0000LLLL
> > 
> > The value appears to really be 16bit (2 8-bit bytes a high byte and a
> > low byte)
> > So...
> > HHHHLLLL hhhhllll is the 16 bit number sent like this
> > 0000HHHH
> > 0000LLLL
> > 0000hhhh
> > 0000llll
> > 
> > The BCR can only cope with 14 bit values, but can handle them
broken up
> > like this.
> > You will need to send the following .tx message to the BCR
> > 
> > .tx $F0 $0F $05 $00 $00 $01 $Voice $Page $Slot val12.13 val8.11 val4.7
> > val0.3 $F7
> > 
> > of course the $Voice $Page $Slot have the correct numbers instead
of the
> > words.
> > Use section 5 Parameter Page and Slot Definition
> > 
> > As an example lets use the Filter#1 Cutoff as it is fairly straight
> > forward (top of pp 12)
> > The Filter pages are 12 and 13,  so for Filter#1  we use 12.
> > The Cutoff is in slot #1 and has a range of 0 to 127 - as this is less
> > than 14bits we are OK.
> > In our example we will use voice# 1 which is number 0
> > Here is the .tx statement.
> > 
> > .tx $F0 $0F $05 $00 $00 $01 0 12 1    val12.13 val8.11 val4.7
val0.3 $F7
> > 
> > The numbers after val are the bit positions in a 14 bit number,
val8.11
> > = bits 8 9 10 & 11
> > With the BCR you can mix hexadecimal and decimal numbers ($ for
> > hexadecimal)
> > 
> > One of the particular problems you face (and I do with my Emu
Morpheus)
> > is that a few old synths used negative numbers
> > 
> > Page 2 slot 4 is the Filter#1 Modulation amount and the values go from
> > -127 to 127.
> > For values less than 13 bit numbers there is a tricky way to get
around
> > this, but not if the values are 16bit as is your machine.
> > eg of negative range
> > 3 = $03
> > 2 = $02
> >   1 = $01
> >   0 = $00
> >   -1= $FF
> >   -2 = $FE
> > -3 = $FD
> > 
> > in 16 bit numbers
> > 3 = $0003
> > 2 = $0002
> >   1 = $0001
> >   0 = $0000
> >   -1= $FFFF
> >   -2 = $FFFE
> > -3 = $FFFD
> >   which to us $FFFF etc. are greater than 14 bit numbers so for
> > parameters like this you can only use the positive side of their range
> > (0 to 127)
> > 
> > Now after saying all this, I don't have a VFX to test this on so I
hope
> > I am correct but you might need to experiment a little .
> > 
> > Get a copy of my editor (I'm sure you can do this in Mark's editor
but I
> > am not familiar enough with it) and copy (cut and paste) this code
below
> > into the script and send it to the BCR.
> > 
> > It just goes into the edit buffer so no presets will be changed unless
> > you save it.
> > 
> > $rev R1
> > $preset
> >    .init
> > $encoder 49
> >    .showval on
> >    .mode 1dot
> >    .resolution 96 96 96 96
> >    .default 100
> >    .minmax 0 127
> >   .tx $F0 $0F $05 $00 $00 $01 0 12 1    val12.13  val8.11  val4.7 
> val0.3
> > $F7
> > 
> > $end
> > 
> > Hope this helps. Let me know how you get on.
> > 
> > All the best
> > 
> > Royce
> >
>