Sound of Shadows Expansion Module
Moderators: Kent, flight, computer controlled
As far as the expansion goes, I say really take your time. The additions should take full advantage on any exploitable quirks in the circuit to turn an already very cool delay into something truly otherworldly. I love the idea of bends or happy mistake crossed wires that do something this thing was never meant to do. I had some great stuff going with the Choices controlling delay time and frequency of a Polivoks in the feedback look and a Pressure Points running feedback. Good shit.
SoS is amazing with any input signals be them lfo slow or audio rate. it does crazy shit in audio territory but it works wonders. i also just figured out how to make it flange REALLY nice (inspired by Kent of course). as always, attenuators are our friends in regards to the incoming modulation of the SoS. definitely jacks for cv and attenuation for them!
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Vids or it never happeneddude wrote:SoS is amazing with any input signals be them lfo slow or audio rate. it does crazy shit in audio territory but it works wonders. i also just figured out how to make it flange REALLY nice (inspired by Kent of course). as always, attenuators are our friends in regards to the incoming modulation of the SoS. definitely jacks for cv and attenuation for them!

Flight,
If you are already considering a VC-Mix control then that takes care of items # 1 & 2 on my list. I wasn't sure if it was possible, given the block diagram, so I was giving an overly long explanation of a kludge that could work.
If there were some way to have a Wet/Dry control on the Insert point, that would be swell.
If you are already considering a VC-Mix control then that takes care of items # 1 & 2 on my list. I wasn't sure if it was possible, given the block diagram, so I was giving an overly long explanation of a kludge that could work.
If there were some way to have a Wet/Dry control on the Insert point, that would be swell.
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This definitely has my interest! Some "sound of thunder" type of circuit bending switches on the expansion would be rad... what kind of bends have you found so far Flight?Quote:
•Any circuit bends on the PT chip? Perhaps some momentary push-buttons or SPST (or other) switches if fun is to be had here.
Good idea. There are a few bend points on there that I found. I made a test rig that brings all the connections out for easier testing and I often end up playing with the exposed traces.
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I will (take my time), don't worry. I'm actually thinking of doing two expansions: the first will just have the Rate LED and attenuated CV inputs, and be about 6-8hp. Now that it looks like there will be enough for it, the other will have the "exotic" functions and probably be 8-10hp.Soy Sos wrote:As far as the expansion goes, I say really take your time. The additions should take full advantage on any exploitable quirks in the circuit to turn an already very cool delay into something truly otherworldly. I love the idea of bends or happy mistake crossed wires that do something this thing was never meant to do. I had some great stuff going with the Choices controlling delay time and frequency of a Polivoks in the feedback look and a Pressure Points running feedback. Good shit.
*Phew* OK, cool.Kent wrote: Flight,
If you are already considering a VC-Mix control then that takes care of items # 1 & 2 on my list. I wasn't sure if it was possible, given the block diagram, so I was giving an overly long explanation of a kludge that could work.
Probably not - the Insert is hard-wired - but what other signal would you mix in there? Any combination I can think of is really the job of a mixer. I'm trying to avoid duplicating common existing modules.If there were some way to have a Wet/Dry control on the Insert point, that would be swell.
Mostly just rate and feedback weirdness so far. I haven't actually tried finding any, just happenstance.VanEck wrote:... what kind of bends have you found so far Flight?
Here's that audio rate CV. Damn I'm having fun with this one!
http://soundcloud.com/soy-sos-sweet-sou ... ding-scale
http://soundcloud.com/soy-sos-sweet-sou ... ding-scale
Kent wrote:If there were some way to have a Wet/Dry control on the Insert point, that would be swell.
This would be so that the inserted effect could be faded into the insert point. Imagine if you could fade in a Moog MuRF or a Phaser onto the delay repeats. That's what I'm getting at.He Who Lurks In Shadows wrote:Probably not - the Insert is hard-wired - but what other signal would you mix in there? Any combination I can think of is really the job of a mixer. I'm trying to avoid duplicating common existing modules.
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First, gotta say, I love the new name. It fits! I do love to lurk.Kent wrote:...
This would be so that the inserted effect could be faded into the insert point. Imagine if you could fade in a Moog MuRF or a Phaser onto the delay repeats. That's what I'm getting at.
Could you describe that signal-chain-wise? I'm having a hard time with it. My guess:
Signal into input --> Delay out to effect --> effect output to Insert.
So are you saying you want to crossfade from the "plain" delay out signal to the "effected" delay signal?
I should probably make a clearer block diagram before we continue... the existing one is very vague for this kind of thing - we need a schematic.
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Can I pre-order one of each?flight wrote: I will (take my time), don't worry. I'm actually thinking of doing two expansions: the first will just have the Rate LED and attenuated CV inputs, and be about 6-8hp. Now that it looks like there will be enough for it, the other will have the "exotic" functions and probably be 8-10hp.

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*boing boing*.
This idea needs a bit of explanation:
The other day Exuviae brought over his SoS and wanted to compare his to mine. With the same source material going to both and with the knobs set the same, we both cranked down our Rate knobs to see how "pukey" it could get.
Mine would get ugly (in a good way, mind you) around 8 o'clock, and if the rate was increased, it'd stutter back to life in a glorious way.
His would never get that dirty. The delay times would increase, sure - but the material wouldn't get ugly (or pukey, really).
We might have a recording of this (maybe, Audacity took a dump on me) but this brings up a question - is there any way to 'tailor' the response of the Rate knob? I glanced at the PCB when moving things around in my rack, and I didn't see any trim pots to adjust.
Any idea regarding the different responses, 'Flight? Maybe this is something that could be an end-user mod or maybe there is something to possibly exploit for the expansion.
Speaking of which, any ideas?
This idea needs a bit of explanation:
The other day Exuviae brought over his SoS and wanted to compare his to mine. With the same source material going to both and with the knobs set the same, we both cranked down our Rate knobs to see how "pukey" it could get.
Mine would get ugly (in a good way, mind you) around 8 o'clock, and if the rate was increased, it'd stutter back to life in a glorious way.
His would never get that dirty. The delay times would increase, sure - but the material wouldn't get ugly (or pukey, really).
We might have a recording of this (maybe, Audacity took a dump on me) but this brings up a question - is there any way to 'tailor' the response of the Rate knob? I glanced at the PCB when moving things around in my rack, and I didn't see any trim pots to adjust.
Any idea regarding the different responses, 'Flight? Maybe this is something that could be an end-user mod or maybe there is something to possibly exploit for the expansion.
Speaking of which, any ideas?

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Last edited by HeWhoWantsJeans on Mon Mar 29, 2010 10:46 pm, edited 1 time in total.
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i understand that one of the things that can be changed is the filters (pre and post delay). that might be useful ....
also boosting the output to put it back in the 'normal modular' +/-5v range would be good.
about reverse delay: the idea is that the sound comes out in the reverse order then that it went in. like reversing the tape: epat eht gnisrever (yes i'm old enough to have done that as it was the only way to get that effect 20 years ago
). great sound but impossible with this chip, i'm afraid.
also boosting the output to put it back in the 'normal modular' +/-5v range would be good.
about reverse delay: the idea is that the sound comes out in the reverse order then that it went in. like reversing the tape: epat eht gnisrever (yes i'm old enough to have done that as it was the only way to get that effect 20 years ago

don't need midi, don't need keys, just want knobs and cables (all together now ;-)