Monostable

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Keres
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Monostable

Post by Keres »

Monostable.

this thread might belong in tips-and-tricks, but i would like one to be mostly used on notes, and to be able to sync with the lines in the pattern. if the monostable could work on audio signals too that would be great. it would have a trigger slider like the ctrl2note. then the value for time then time units. but basically, you could do things like add note delays that auto sync the note off to the next quarter or 8th note. or.. just holds a signal... well most of you know know better than me.
Kid_lofi
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Re: Monostable

Post by Kid_lofi »

so automating note events with tempo sync? Maybe i misunderstand (I had to plug 'monostable' into a search engine) To use existing Sunvox features as an example, it would work like a like a Sound2Ctl hooked up to a repeating beep pattern, except that it can do "Sound2Note" as well?
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Logickin λ
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Re: Monostable

Post by Logickin λ »

Do you want monostable circuit like this ? (My website in the chapter with monostable circuit)

The monostable circuit is made of delay modules. You can change it to rising or falling edge using modulator.
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Keres
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Re: Monostable

Post by Keres »

FX2 by Nick Jones is the only other synth where I have seen one as a dedicated module. In his app, the tool only has one setting in milliseconds. This layout shows what it does to a square wave at 1Hz with the monostable time set to 333ms.
Image

This is the output in Audacity. You can see that his monostable acts only when it's specified period is over and only on the first positive input.
Image

Also from the FX2.1 manual:
Monostable
A triggered monostable tool. This is a rather specialised tool likely to be of interest to people developing complex layouts using control signals.
The monostable has a single control input. Normally the monostable exists in an idle state where its output is zero. When the control input level rises, the monostable is triggered. At this moment the output rises to a maximum value, remains at this value for a fixed delay period (defined in the monostable's control dialog) then falls to zero again as the monostable re-enters its idle state and waits to be re-triggered.
The monostable's control dialog is very simple, it contains only one field - the monostable delay period which is defined in milliseconds.

Notes
1. The monostable's trigger input is ignored when the monostable is busy. It will not be retriggered until after it drops back to its idle state.

2. The monostable is useful as a way to convert an external event from a midi keyboard or joystick button into a pulse of a defined width.
I will have to read your book and become more acquainted with it... it's amazing the user contribution to Sunvox. I think that you have it exactly, but with more options than I am used to. Thanks
Kid_lofi
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Re: Monostable

Post by Kid_lofi »

Do you want monostable circuit like this ? (My website in the chapter with monostable circuit)
:shock:

Logickin,
...are you a wizard?
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Logickin λ
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Re: Monostable

Post by Logickin λ »

Keres wrote: Fri Sep 16, 2022 7:49 am I will have to read your book and become more acquainted with it... it's amazing the user contribution to Sunvox. I think that you have it exactly, but with more options than I am used to. Thanks
Thank you! Hope you have found something useful in the book. Meanwhile, I am still updating the 3xLog, so the some of the page are skipped since more clarification are needed. Despite I have studied Digital logic in my university, I may still make some error. If anyone find any errors or have any suggestions, feel free to send me a message, so I can improve the manual further for the community. :beer:
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Keres
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Re: Monostable

Post by Keres »

Image


ok, this works exactly the same in both softwares. The top recording is from Sunvox with a 1Hz square wave into a 333ms monostable as explained in Logickin's book. You can see it is (except for amplitude and offset) the same as the layout in our ancient softsynth. I say it is... but if you zoom in, the file from FX actually has a bit of delay (about 20 samples or so). I don't know if it is from recording Sunvox into Audacity using alsa, but I don't think that is going to matter for what i want to do, which is create MIDI input quantizers.

One thing is that in Logickin's book, he explains that the delay module has to be in stereo with both delay times working together and that would create problems when trying to establish control sliders in a metamodule. The good news is that this also works with the delay in a MONO setting using only the left slider.
Logickin,
...are you a wizard?
Yes, he is.
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