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wakyct
Joined: Dec 30, 2020
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airlock
Joined: Apr 06, 2007
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Location: Calabash, NC USA
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 Posted: Sat Jan 02, 2021 12:43 pm Post subject:
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Nice one!
Noisecloud is your website? |
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wakyct
Joined: Dec 30, 2020
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Location: USA
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| Posted: Sat Jan 02, 2021 2:02 pm Post subject:
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| Airlock wrote: |
Noisecloud is your website? |
No, I randomly found it. The person who made it has some cool diy synth pages on their main site though, https://chrisbeckstrom.com/projects/the-modular/ |
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wakyct
Joined: Dec 30, 2020
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| Posted: Sat Jan 02, 2021 8:13 pm Post subject:
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I had a go with a snare drum sound. A LFO triggers the Euclidean rhythm module, which triggers an envelope modulating a basic noise generator. I added a resonator to give it a little more impact.
Sample mp3s attached. The brush sound is the basic snare with the LFO doing a little more work and me changing the speed of the envelope live.
You can have some fun using the LFO in this one  .
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basic_snare.wren |
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basic_snare.mp3 |
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wren_brush.mp3 |
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358 Time(s) |
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Blue Hell
Site Admin
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Location: The Netherlands, Enschede
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| Posted: Sun Jan 03, 2021 10:54 am Post subject:
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Ah, good to see you discovering things 
_________________
Jan
also .. could someone please turn down the thermostat a bit.
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wakyct
Joined: Dec 30, 2020
Posts: 105
Location: USA
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| Posted: Sun Jan 03, 2021 8:09 pm Post subject:
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Yes it's a lot of fun
Also at the risk of repeating the obvious, I wanted to mention to people new to Wren, there is a zip file of over a thousand examples at https://bluehell.nl/wren/patches/forums.html. Download that and sort the extracted folder by size. I've found that the smaller patches (for example 'kickbassdrum_126.wren' is 13 KB) are easier to understand than the big 50 KB+ ones. |
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wakyct
Joined: Dec 30, 2020
Posts: 105
Location: USA
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| Posted: Thu Jan 07, 2021 9:30 pm Post subject:
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Like I guess many people new to synths I've been looking for examples of how to patch to get different sounds. I read about this idea,
| Quote: | A cool way to get lots of complex patterns that always repeat exactly, like a sequencer, is to
connect two (or more) LFOs to a mixer, then send the mixer to a S/H in, then send the S/H to
a quantizer to derive exact notes. Use a clock divider to retrigger both LFOs after every 8
S/H steps. Now just mess around with the various LFO rates and the mixer levels. You'll get
all sorts of complex patterns, but each pattern will repeat exactly every eight notes until you
change the LFO frequency & mixer level settings. add a noise source (or two) to the lfo's and
you'll have a huge range of variations. the trig for the s&h is the rhythmic part of it. if you
want tonal and can trigger the quantizer (like with the doepfer) you could skip the s&h as a
seperate module. |
An LFO triggers a sample and hold which gets a sine oscillator input. The S&H sends to a note quantizer, which controls the frequency of a tri oscillator. The tri goes through an envelope and low pass filter to audio out.
Originally I had two LFOs triggering the S&H and a clock to sync the LFOs, but I removed them from the attached patch to make things simpler to look at.
That's related to one thing I haven't yet figured out how to reproduce from the quote above, which is dividing the S&H into a set of steps and then resetting to get a new pattern.
What is a 'clock divider' in Wren?
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alien_bass.wren |
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alien_bass.mp3 |
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366 Time(s) |
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Blue Hell
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Joined: Apr 03, 2004
Posts: 24040
Location: The Netherlands, Enschede
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| Posted: Fri Jan 08, 2021 7:34 am Post subject:
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| wakyct wrote: | | What is a 'clock divider' in Wren? |
It's called Divider and can be found on the Logic tab.
Using CTRl+F you can search for modules in the module selector and in the patch (and when that is not working use F3 to go to the settings page and in the leftmost column find the checkboxes for 'search works on patch' and/or 'search works on selector'). Then use F2 to go back to the patch.
Using CTRL+F and then type div you'll find a bunch of dividing modules, the ones on the Logic page all being clock dividers of some sort.
To clear the search you can use CTL+F and then ESCape.
_________________
Jan
also .. could someone please turn down the thermostat a bit.
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wakyct
Joined: Dec 30, 2020
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Blue Hell
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Joined: Apr 03, 2004
Posts: 24040
Location: The Netherlands, Enschede
Audio files: 276
G2 patch files: 320
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| Posted: Sat Jan 09, 2021 7:57 pm Post subject:
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| wakyct wrote: | Also one thing I just realized is that to edit values in modules I need to press Ctrl and Enter simultaneously. The right-click menu says "Ctr+Enter" and I was used to either holding Ctrl and pressing Enter, or pressing Ctrl and then Enter from other programs (neither of which seem to work in Wren). Also selecting in the right-click menu appears to work inconsistently -- sometimes you can set the value but the value will reset once you edit it.
However pressing Ctrl and Enter at the same time seems to be consistent.
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The shortcuts that always work are <ctrl+(left-mouse-)click>, or (after clicking in it) just <enter> .. it is a bit messy indeed.
There are some different kinds of editable values ...
The ones associated with knobs don't work properly (these are the ones that will lock a knob after a manual edit), and I really should disable editing for those .. except that it's on my todo list still to make it work 
And then there are some that want you to enter a free format text value (or a file name),that is working as expected.
But <ctrl+enter> never works I think  I've changed the shortcut in the popup menu to just show <enter> .. for the next release .. I can not make it show <ctrl+click> though ... which is the thing I always use ...
Edit: and then there are single line values and multu line values .. the single line ones can be acknowledged by using <enter>, as those do not allow for line breaks in the text, but the multi line ones want <ctrl+enter> to actually make the value work.
Last edited by Blue Hell on Sat Jan 09, 2021 8:18 pm; edited 1 time in total |
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wakyct
Joined: Dec 30, 2020
Posts: 105
Location: USA
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| Posted: Sat Jan 09, 2021 8:16 pm Post subject:
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| That makes sense, thanks for the explanation. |
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Blue Hell
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| Posted: Sat Jan 09, 2021 8:20 pm Post subject:
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I've added an extra edit: section for single/multi-lined edit thingies .. for in case we cross posted ... 
_________________
Jan
also .. could someone please turn down the thermostat a bit.
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wakyct
Joined: Dec 30, 2020
Posts: 105
Location: USA
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| Posted: Thu Jan 21, 2021 11:23 pm Post subject:
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I was messing around with hihat sounds, and added a random generator for variety. That gave the idea to use a logic module, a logic selector, as a really basic sequencer, and the result is this cymbal and kick drum demo.
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cymbal_and_kick_demo.wren |
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116 Time(s) |
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cymbal_and_kick_demo.mp3 |
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295 Time(s) |
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wakyct
Joined: Dec 30, 2020
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wakyct
Joined: Dec 30, 2020
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| Posted: Fri Jan 29, 2021 11:49 pm Post subject:
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Here is a slightly more complex patch again imitating a patch from modular-planet (http://www.modular-planet.de/texture/pulssweep/pulssweep.html). It uses a sequencer with quantizer to drive the VCO's frequency. I'm also starting to see the utility of assembling basic math (like constant and multiplier) and mixer modules to fine tune the signal.
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pulse_sweep.wren |
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87 Time(s) |
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pulse_sweep.mp3 |
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271 Time(s) |
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wakyct
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Location: USA
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| Posted: Sun Mar 14, 2021 10:04 am Post subject:
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I'm starting to explore multiple voices that respond to each other in some way and this is a basic 4 step lead part with a following bass, keyed to the first step.
One funny thing about this patch I don't understand is that the lead part will play multiple notes on a single step. I would have thought the sequencer would send one signal to the quantizer which would produce one note. But maybe if the sequencer stays on a step the signal changes? Maybe this has something to do with the cross-fader output?
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lead_and_bass_voice.wren |
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harmonic_bass.mp3 |
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251 Time(s) |
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Blue Hell
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| Posted: Sun Mar 14, 2021 1:52 pm Post subject:
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| wakyct wrote: | | IOne funny thing about this patch I don't understand is that the lead part will play multiple notes on a single step. I would have thought the sequencer would send one signal to the quantizer which would produce one note. But maybe if the sequencer stays on a step the signal changes? Maybe this has something to do with the cross-fader output? |
Yes, that is due to the cross fading, the rightmost column of outputs (above the X (for x-faded)) is crossfaded, the one left of that (above R (for raw)) is not cross faded.
When cross fading is in effect the X outputs will try to interpolate between the current and the next step, so they will glide. The amount of glide is determined by the xfade knob (and it's modulation input). So when cross fading the quantizer will see a hit on a couple of in-between values. The glide will only be perfect when the sequencer is stepped with a constant rate, as the glide time is being calculated from the time betweensteps .. which can only be known after one step completed.
You can set the cross fading to zero, use an output from the R column or use an extra sample&hold before the quantizer.
Or when you like it to do steps, you could time quantize those steps by using a s&h directly before the quantizer and trigger that one from a faster clock .. say directly from the clockgen output or with an extra divider by 2 or 3 or so.
_________________
Jan
also .. could someone please turn down the thermostat a bit.
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wakyct
Joined: Dec 30, 2020
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| Posted: Sun Mar 21, 2021 8:39 pm Post subject:
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After hearing more about generative stuff I had a go with mixing multiple square LFOs to control the step of in this case the random note sequencer SeqRandom.
It made me wonder if there's a good way to visualize (or conceptualize) the mixing of the LFOs? Setting the input levels of the LFOs in the mixer to produce interesting patterns is something of a guessing game (or I'm not a very good guesser yet ....)
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square_lfo_makes_seq.wren |
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95 Time(s) |
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square_lfo_into_seq.mp3 |
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250 Time(s) |
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Blue Hell
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Location: The Netherlands, Enschede
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G2 patch files: 320
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| Posted: Mon Mar 22, 2021 9:59 am Post subject:
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You found a bug in the SquareLFO module ... it has an internal 'Warp' parameter that should be set to 0.5 .. but it is never initialized .. so it is zero .. meaning .. only an occasional spike comes out ...
So yeah, that will not perform very intuitive.
I'll fix that for the next release, meanwhile you can use the regular LFO set to run with a square wave output.
This will of course kill the pattern you now have ... but it really is bug based as is
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Jan
also .. could someone please turn down the thermostat a bit.
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wakyct
Joined: Dec 30, 2020
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Location: USA
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| Posted: Mon Mar 22, 2021 10:30 pm Post subject:
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Well you found the bug, but at least I made the noise that scared the bug from its hiding place
As it happens two LFOs into the mixer made a nice pattern too, with a kind of call and response by doubling a channel with a reverb.
https://soundcloud.com/ergodicbreak/2lfos-into-seqrand-with-reverb |
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Blue Hell
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Location: The Netherlands, Enschede
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G2 patch files: 320
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| Posted: Tue Mar 23, 2021 7:52 pm Post subject:
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Yeah wel, I'm glad you are trying things with it ... like .. erm .. like refreshing the parts other beers can't reach.
A brilliant slogan that, even when I prefer "real" beer
_________________
Jan
also .. could someone please turn down the thermostat a bit.
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wakyct
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Blue Hell
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wakyct
Joined: Dec 30, 2020
Posts: 105
Location: USA
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| Posted: Sun Mar 28, 2021 1:39 pm Post subject:
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| Blue Hell wrote: | | May I suggest the following ... (I've simplified it a bit too .. ) |
Yes that works much better thank you! I like that use of the S&H. Also I notice the result is the same if I route the audio from the filter directly to the VCA and control the VCA with the envelope. |
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wakyct
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| Posted: Tue Mar 30, 2021 11:36 pm Post subject:
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With the velocity patch I was kind of crudely dividing the clock with the interrupt input (I think that's what it is anyway) of the envelope module, but then I realized you can just mix divider modules to get patterns.
Combine this with the random velocity, also clamping the minimum velocity with a constant and min/max module (perhaps there's a better way to ensure a minimum gain?). Modulate the oscillator frequencies slightly with the dividers too to make the tone a little more interesting.
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clocks_on_control.wren |
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19.49 KB |
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82 Time(s) |
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clocks_control.mp3 |
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272 Time(s) |
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