Do we have a slew module?
&e
Not a dedicated one.
A few of my modules do include slew.
for general use, you could use attn.
However, with the exception of cart, the slew time is not configurable. (Iirc) , basically I use more to smooth out signals - for dc → ac use. ( * )
However, reality is. a slew is just a lpf ( ** ) with low cutoff and no res - so you could use this something like svf.
I wonder if I should add this to shq , as it’d be quite a natural fit for it.
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( * ) this limitation allows me to use a slightly cheaper (cpu) implementation.
( ** ) technically, there are different kinds of slew, wtih different responses etc… e.g. you could have a linear or an exponential response. which is suitable, rather depends on use-case, and to some extent ‘taste’
with a rate that’s syncable to clock would be a nice addition
I am using some alternative handheld controllers, and it’s so damn jumpy, really could use some smoothing/slewing. But I would need to be able to adjust the timing, and would benefit from several channels, like 8.
attn should be enough too eliminate the audible ‘stepping’ … or rather should I say the audio discontinuities.
for variable, with what we have now, id try the SVF… assuming its not ac coupled , it may be help with low frequencies rates. that said, you’ll need a few modules to get 8 channels, and svf is a bit expensive/overkill (in terms of cpu) for this.
other than that needs some dev work…
for now, you could try to do in rnbo and use my module creator. it’d be a very simple project to do, and you could add as many channels as you want.
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There isn’t any stepping, these controllers are super smooth, they just pick up the very slightest hand wiggle-beyond my ability to hold still. I’ll look at the rnbo thing, but I’m way behind on that kind of knowledge. I doubt I could get up to speed.
with rnbo you’d only need one object, rampsmooth~ (for linear slew), just connect parameters (up/down for rates) and in/out audio … about as simple as it gets.
(copy 8 times)
out of curiosity, I also tried with SVF …
as you can see slow sq wave, but would work with any analogue signal…
here you can see I got to about a half second slew.
some ‘oddities’ (as expected, which is why Im always curious)…
SVF has min freq of 20hz, and we want something very slow…so low frequency.
so I used an ATTN to create a negative voltage, which even then I scaled back.
sure, tis a bit fiddly…
that said, I always find it fun in modular abusing modules for other uses, and like here you tend to learn something when doing so.
what’s also nice here, is we can also see the (normal) filter characteristics but in ‘slow motion’.
the filter slope is pretty sharp, not sure what slope is… though, for a slew (which is typically quite ‘slow’) you’d probably want something softer like a 3db (id not be surprised if this is 12db… but would have to measure it)
anyway just a bit of fun 
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