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Bc2000 (for the BCF2000 & BCR2000)

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Akai miniak preset for BCR please help!

Akai miniak preset for BCR please help!

2015-03-04 by francesco toccafondi

Hi everybody! I'm new to the group and to the Bcr. I really need some help to set my Akai miniak to be real time controlled by the Bcr. Is there anybody that can give me a working preset for the bcr for this task? I have the Mark Van De Berg editor to load it up: am I in the right direction?! Otherwise you tell what to use! Thank you for your patience and...for the preset! (If possibile to have ...!) Sorry for my english and take care everybody! Francesco

Re: Akai miniak preset for BCR please help!

2015-03-10 by steve@...

You may not know that the Miniak is very closely related to the Alesis Ion and Micron. In fact, it's nearly identical to the Micron, with a small number of updates.

And if you didn't know that, you probably wouldn't know to look to the "alesis-ion" yahoo group for support of the Miniak. Which is why I bring it up...

There are some BCR2000 presets in the ion-micron group's files.

Be warned: All 3 of these (Ion, Micron, Miniak) use NRPN messages for control, and Alesis (and AKAI) used the NRPNs in a non-standard way. First, I'm told they send the LSB and MSB messages in the wrong order; that is nothing the BCR cannot handle. But they also use the values in a non-standard way as well. If you are familiar with how numbers are encoded in binary, they used a "signed" representation, rather than the normal "unsigned".

If you don't know what that means, here's a concrete example. Oscillator 1 waveshape parameter (NRPN 12) has parameter values that range from -100 to +100. Midi standard would probably have you shift this range into the positive region from 0 to 200; send midi value 0 for a parameter value of -100, 100 for 0, and 200 for +100.

For reasons that only binary-understanding-geeks like me can comprehend :-), Alesis instead chose to send midi values 0 - 100 for positive parameter values 0 - 100, and values from the highest end of the NRPN range, 16285 - 16384, to represent -100 to -1.

So you really want a knob to send values [16284 - 16383][0][1-100], i.e. it wraps around through 0. The BCR cannot be programmed to do this as far as any of us have discovered. If you set up a knob to send all 16383 possible midi values, you end up with a lot of dead space that the synth doesn't respond to (101 - 16283). Other choices are ignore the negative half (that's no fun!); assign one knob to the negative half of a parameter, and another to the positive half; or a rather ingenious method is to assign one knob for sending negative values only (so you first touch a positive-sending knob to select which parameter to edit, then you turn the negative knob to get to negative values).

Hope this helps you!

--> Steve Wahl

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