Almost Recordable Sequencer – Euroburo Version

Empress Zoia / Euroburo Patch: rec seq osc
rec seq osc stands for Recordable Sequencer with onboard Oscillator.

The demo of the patch kind of follows each page in order. So, if you feel like skipping ahead, you can do that. It is probably better to see it the whole way through the first time.

This patch has been made in two versions. One is made for the Euroburo. The whole thing was made on the Euroburo but I thought that some people might like to see it on the Zoia pedal version so I made one that would show all the connections on the grid. I believe that a Euroburo patch with audio IO will show but the CV Out might be a problem. So for the Zoia pedal version, I put in a sawtooth oscillator. The Cap’n BIG-O was using a sawtooth oscillator so they sound quite similar that way.

The Euroburo version has the recordable step sequencer send its CV out to the CV Out on the panel to the Cap’n BIG-O VCO tune port. The sawtooth port goes to the Audio In Left Channel on the Euroburo which is connected to the SV Filter In. The rest is the same except that the Euroburo version does not have the pad in the main grid for the audio out.

Page 0 is called “midi and select”
Page 1 is called “set seq cv out”
Page 2 is called “filter n VCA”

Page 0
In the lower left is a button that switches control of the gate signal from the MIDI Clock In module to the MIDI Notes In gate out using an In Switch which is located in the top right corner. In the middle of page 0 is a 16 step step sequencer with CV’s set to 16th’s of a step plug one notch to the right with the rotary encoder.

Page 1
Those values are sent to a 16 out Out Switch which cycles it through 16 steps. The Out Switch’s CV input comes from the MIDI Notes In and through the Out Switch is sent to respective steps 1 to 16 of the 16 step step sequencer on this page, which was meant to hold the note values. Or the Out Switch was meant to hold the note values. The patch is a work in progress so the understanding of it changed during its making.

Page 2
The CV out of the 16 step sequencer is sent to either an external VCO module through a CV Out (Euroburo) or a sawtooth Oscillator. In either case, the output of the oscillator is routed back into an SV Filter which has an ADSR modulating the cutoff frequency. The output of the filter feeds into a VCA which has an ADSR modulating its level. The output of the VCA is sent to the left Audio Out channel (both versions).

The problem is that the Out Switch has its outs always connected to the steps of the step sequencer. So when the Out Switch progresses through one out to the next out, the previous out reverts back to a 0V CV. This value gets placed into the step sequencer even though the step has been passed.

I think a recordable step sequencer could still be made using some more work with this patch. However, I think Empress could also make their product a little better by adding a feature where the Out Switch outs would hold their values after another out has been selected. The next time that out is selected, it can change to whatever value is presented at the cv input.

This feature could be a selectable option just like other modules have selectable options. I have not found a use for the outs of the Out Switch reverting back to 0 but I am sure that is just my lack of knowledge.

Another option could be that the step sequencer have an option for a cv input and it would write those values to the steps as trigger by the gates. The steps would hold as the step was written and passed by.

This whole written piece was intended as a script for a walk through of the patch. Then it had to be rewritten because it was too long.

I am hoping that Empress can see the value in what is almost a recordable step sequencer and make the changes. It also almost something on its own that is closer to being a recordable step sequencer with some additions with the current modules available. So, hopefully, I can get around to doing that. I like the recordable step sequencer better than the audio looper. It is neater and probably takes less CPU power. Maybe not by the time it is finished.

Regardless, I am glad I made the patch as I learned a bunch of new modules. An Out Switch, In Switch, using a step sequencer as a way of controlling both of those types of switches, and how to toggle one thing on and another thing off which the push of just one button as a UI feature. Plus I slogged through different versions, sometimes recording a video thinking I thought “This is the version that is almost ready!” – And then finding out there should be more.

Feel free to comment with your likes, dislikes, opinions, etc.

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  • State: Work In Progress
  • Platform:
  • Category: Sequencer
  • Revision: 1.0
  • License: Do What The F*ck You Want To Public License
  • Modified: 2 years ago
  • Views: 409
    Likes: 0
    Downloads: 429
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