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Post by teking66 on Feb 7, 2015 16:53:16 GMT 1
Hi everyone,
I'm trying to create a Sample & Hold circuit that will give me that 'burbling' effect and I just can't seem to get there.
I'm close, but I'm getting a lot of white noise being introduced and just ruining the sound.
My goal is to have this LFO controlled, which at this point I am only assuming can be done.
I'm using the stock "Sample and Hold" module, with the Hold being controlled/activated by a "Comparator" module.
This is fed signals from a couple of 'Monostable" modules, which are being activated be the LFO.
In truth, I'm not sure I know exactly what I'm a doing , but I am trying to give it a go. After all, nothing ventured, nothing gained. And, I have finally gotten to the point that I'm a bit frustrated, and so thought I might ask for a bit of help with the issue. And as long as I end up with the burbling effect, then what the hey, It doesn't have to be an LFO that produces it.
If anyone can help to point me in the right direction then it would be much appreciated.
Thanks in advance to all,
Tim
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Post by Rob on Feb 7, 2015 17:02:46 GMT 1
Hi,
I never made something like that, but can you post a sample and provide a schematic of what you have now?
Maybe we can help out that way..
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setronic
Synthedit regular
Posts: 293
Posts: 293
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Post by setronic on Feb 7, 2015 22:11:02 GMT 1
i think you'll find an example in the SE files area. you want 'random' LFO, right? > osc produces noise, into a sample and hold module, whose gate/hold...hang on, booting SE... ok, so noise goes into 'audio', and 'hold' is controlled by the main LFO osc. so if you have eg: a pulse wave selected on that, its rate will determine how often the noise level is sampled, and the 2 give this 'random' CV output. the trick is how you select the s+h mode, and what waveform this selects on your main LFO. so do this work where you have the list, with a bools to list, and associate what you want by using boolsplitters/other to combine the TWO list options(for each osc, regular waveforms, and the noise osc) - or alternatively  ) find the oldschool demo prefab in the files section! i have used and modified it heavily, but i'll see if i can find the original for you.. |
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setronic
Synthedit regular
Posts: 293
Posts: 293
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Post by setronic on Feb 7, 2015 22:12:34 GMT 1
ok: look for the bpm sync lfo prefab. it is in there.
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setronic
Synthedit regular
Posts: 293
Posts: 293
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Post by setronic on Feb 7, 2015 22:16:23 GMT 1
really fffffffn arcane!!! haha with the hysterisis calculated on 'either side' comparators. this is why i did it GUI side, using bool to list, and joining the options i wanted with boolsplitters. (meh, too late tonight, i have to cook something to EAT!!!!) you'll figure it out ;-) once you get a lfo wave triggering the hold. works a treat, everything you want. (and then you can figure out dotted and triplet bpm divs, by x0.6667 and x1.5, and later limit range, with offset, and separate cv + and - polarities, sending them wherevr you want  separately ) |
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Post by KlangManipulation on Feb 8, 2015 0:00:58 GMT 1
mmm you could build a stepsequencer for rythmic hold  |
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setronic
Synthedit regular
Posts: 293
Posts: 293
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Post by setronic on Feb 8, 2015 22:17:39 GMT 1
*totally* - the 'hold' pin is best triggered by the pulse LFO,
(or ramp?) so rhythmic random gate...yah gotta do that..
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Post by teking66 on Feb 8, 2015 23:49:51 GMT 1
Cool beans guys.
Rob, actually I have quit a few prefabs that I would like to upload and share (just need to find a really good place to host them).
Just curious, are custom GUI images stored in the prefad? Probably would need to be packed separate I would presume.?
KlangManipulation, you know, I believe I did put together a step sequencer already. ;-) (probably should share this one for sure).
By the way, this one now has a custom GUI, pretty cool and it works, though I'm not 100% sure I did it exactly the right way.
setronic, thanks for the suggestions, I shall have to dig into some of those deeper, especially the pulse wave osc feeding the hold (for some reason that idea just had not occurred me). And the BMP syncable LFO, I already have that covered, actually you can select either synced or free running (another that needs sharing).
Before I throw this out there I'm going to try a few more things (time permitting), just to see what I can get it to do.
Give me a day or two (maybe three), and I'll be back in touch, hopefully with a really cool toy to share.
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Post by teking66 on Feb 19, 2015 3:38:02 GMT 1
OK guys and gals, The Sample and Hold prefab is pretty well complete as I can seem to get it. Meaning that it works about as well as I have been able to get it to. If anyone wants to improve it, then please feel free to do so as I'm sure it probably isn't the best it could be. Or if you have a look see a wonder why I did what I did, well then we can try and figure out just exactly that.  I uploaded the archive file and shared a link in my thread here the 1.2 Prfabs section of the forum. It's the last file listed on the original post. Feel free to use it if you want, or course if you improve it and would like to share those improvements, then I certainly wouldn't mind. Enjoy! |
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Post by Rob on Feb 21, 2015 19:04:39 GMT 1
Cool beans guys. Rob, actually I have quit a few prefabs that I would like to upload and share (just need to find a really good place to host them). Just curious, are custom GUI images stored in the prefad? Probably would need to be packed separate I would presume.? Nice, You need to include the folder with the custom images. |
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Post by vangelis on May 3, 2015 13:11:48 GMT 1
Hi everyone.
thank you for all the interestng stuff.
Can someone note to me where this "files location" of prefabs is?
Thanks.
Vangelis
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Post by Rob on May 6, 2015 19:20:34 GMT 1
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Post by vangelis on May 9, 2015 8:58:30 GMT 1
Thanks again Rob!
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) find the oldschool demo prefab in the 
