Shimmer Reverb (without FV-1?)

[ghiekorg]

Hi everyone,
today i was thinking on how to spend more money than i should and an iOS app came to my mind. it's called crystalline and i remember i LOVED it. It's a double shimmer reverb or something like that.

I went for a search and i found out that there is almost nothing about shimmer reverbs and the only ones i found use the FV-1 IC (which, i guess, doesn't exist as through-hole mount). And zero, not even one, PCB layout. I only found a ready-to-buy PCB on PedalPCB (for the phythagoras v3, somewhere else called threeverb (?)).
I could buy that but a)i wanna etch my boards and b)it would cost me around 80$ shipped. A TC harmonics Hall of fame reverb costs 110$ brand new... I was thinking about making my own layout from the schematic of it using DIYLC but i am not sure i have the knowledge (a month ago i didn't even know what a capacitor was).

I am missing something? 

Thanks anyone

[11-90-an]

Hall of fame reverb seems to use SMD and digital chips...

(not my image, found it one google)

from what I searched... shimmer reverb is basically the reverb an octave up?

if so, then you can modify your chasm reverb to have dry/reverb outputs, feed the reverb output to a pitchshifter (whammy?) then mix the two signals back together... plus, pitchshifters, don't really come in analog... (there are, but they are quite lofi and have some unwanted changes...)

[ghiekorg]

Yes from what i understood the shimmer has higher octaves (some have 4, i saw). Your idea seems cool, it would just take a lot of space (chasm + octaver + mixer). It could be interesting to place a octaver and a mix together then (i just made a post about an up octaver) in the same box...

I think for now i will either go on buying an already-made one  (like the TC or the BOSS RV-6) or i will stay with what i have.
In fact,  after posting this, i played a bit with the chasm (i realised i built several pedals but didn't really yet play them properly) and setting the dampening to the max "aperture", the oscillator ON and the  decay on the 90% "widening" (not 100% to avoid feedbacks) i get a really nice wide and full of harmonics reverb which is similar to a shimmer. Or at least similar to the way i would use a shimmer.
I have to say i am happily surprised about that I love the chasm

[potul]

You can find a PCB layout for an FV-1 project in the Digital and DSP area of the forum. Look for "FV-1 project including shipmverb", or something similar. Long post and you need to hunt for the link, but all info including EAGLE files and so on is there.
Of course, you will need to solder the FV-1 (SMD), but it's not that hard. And you will need to program the EEPROM with the code.

I don't think you will be able to create any decent shimmer unless you go digital. But the learning curve is steep.
So my recommendation is:

-If you want to go down the dsp rabbit hole, give FV1 project a try.
-If you just want a working unit, buy a commercial one. There are cheap options out there. Try to find a used Behringer RV600 (clone of the boss), or you could try with a Zoom MS50G, I think this one has a shimmer as well and it's a good option to have these effects you just use in one song.

[ghiekorg]

Thank you potul.
I saw some thread about it. One was something like 35 pages... Probably it's the one you talk about.
I am quite new to pedals (i did my first one a month ago) so probably it would be too much for me atm. I will keep it in mind in the future when i will decide to go for another reverb.
I could take the RV600 and change the case it seems a really good pedal from what i see.

Thanks a lot!

[bartimaeus]

i'm not sure it's worth the time and effort of learning the software and hardware of the fv1 just to make a shimmerverb, when so many shimmerverb pedals already exist for fairly cheap. the fv1 octave up sound has an inherent chorusing/tremolo to it, so it isn't the most versatile shimmerverb either. the pedalpcb spatialist isn't a bad option, and the chip they include has shimmer plus a bunch of other reverbs. but the fv1's programming language is only relevant to the chip, so it's only worth learning if you think you'd do a lot with it.

[MetalGuy]

i'm not sure it's worth the time and effort of learning the software and hardware of the fv1 just to make a shimmerverb,

If we're talking only soldering one SMD part (some PCBs are sold with the chip presoldered) and uploading the programs (already available - no need to code anything) to the EPROM it's not that hard.
If you want to create your own effects it's an entirely different story.

[niektb]

i'm not sure it's worth the time and effort of learning the software and hardware of the fv1 just to make a shimmerverb, when so many shimmerverb pedals already exist for fairly cheap. the fv1 octave up sound has an inherent chorusing/tremolo to it, so it isn't the most versatile shimmerverb either. the pedalpcb spatialist isn't a bad option, and the chip they include has shimmer plus a bunch of other reverbs. but the fv1's programming language is only relevant to the chip, so it's only worth learning if you think you'd do a lot with it.

Or use SpinCAD