DESCRIPTION:

CrossX is a somewhat strange Blue effect, as all Blue effects have 2 signal inputs and 2 signal outputs. CrossX does have this of course, but if you want to divide an incoming signal
into 3 frequencybands, one should have 2 inputs and 6 outputs (= 2 x 3). This is not how the Blue mixer is set up.
A workaround is to divide the incoming signal into 3 Subchannels, each with its own CrossX effect. One Subchannel for the Lowpass, one for the Mid, one for the Highpass. Disadvantage is that
when you want to change the frequencybands of one of the Crossx effects, you should copy this behaviour so all they all match...

The CrossX divides the signal in 3 band spectra: low, mid, high.
In the pre-fade of a Blue mixer strip, add 3 sends to 3 different Subchannels. In each Subchannel, put the CrossX and set the checkbox to active for the LOWpass, BANDpass and HIGHpass.

The Y axis represnts the amplitude of each band, and the X axis of the 2 windows LOW and HIGH determine the LOWpass frequency cutoff and HIGHpass frequency cutoff.

On each of the Subchannel (= spectrumband) it is now possible to add effects or adjust the volume. You can mix the 3 outputs of the Subchannels and its effects together again
, for example in a 4th Subchannel, to create different sound textures from one sound source.

CONTROLLERS:

ON/OFF - bypass
LOW/HIGH/BANDpass - frequency band of filter(s)
filterdepth - set steep slope of filter(s)
XY controllers - set frequency and gain

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version 1.21, May 2020
- added comments on controllers

version 1.2, 2019
- XY controller improvements

version 1.1, februari 2018
- added filter depth
- used modified buttpass UDO from Victor Lazarinni

version 1.0 , January 2018
- initial version by Menno Knevel
- 3 band spectrum divider
- checkbox on/off