Search found 145 matches

by kpreid
Mon Jan 18, 2021 10:06 am
Forum: Eurorack Modules
Topic: Doepfer A-135-2 Quad VCA
Replies: 48
Views: 5651

Re: Doepfer A-135-2 Quad VCA

I don't have an A-135-2 but I have two of the A-141-4, which also has 4 jacks across in 8 HP. The jack spacing is very slightly narrower than a row of Tiptop Stackcables. You can plug four into one module comfortably enough, but if you have two such modules side by side you can't plug 8 stackcables ...
by kpreid
Thu Dec 31, 2020 6:15 pm
Forum: Eurorack Modules
Topic: Befaco Chopping Kinky!
Replies: 40
Views: 5586

Re: Befaco Chopping Kinky!

I got out my Chopping Kinky (which is a Befaco factory build I got as a warranty replacement, so hopefully it's exactly as intended) and hooked up an oscilloscope, and both channels are phase inverted, but they are also both bipolar. ck.jpg The faint lines indicate the zero volts level. Top trace is...
by kpreid
Thu Dec 31, 2020 4:23 pm
Forum: Eurorack Modules
Topic: Befaco Chopping Kinky!
Replies: 40
Views: 5586

Re: Befaco Chopping Kinky!

The phase that you get out will depend on the input signal amplitude and gain knobs (labeled 2A/B in the manual ) — at high settings a single "hump" will become many swings up and down, and the phase of the middle will vary wildly depending on the gain. That's the nature of high levels of wavefoldin...
by kpreid
Sun Dec 20, 2020 12:47 pm
Forum: Synthesis Techniques
Topic: Attenuating Mod Depth
Replies: 14
Views: 381

Re: Attenuating Mod Depth

Never heard of that module, but from the description, sure. The matrix mixer mode says it can "transpose", which is a fancy word for adding an offset.
by kpreid
Sat Dec 19, 2020 7:02 pm
Forum: Synthesis Techniques
Topic: Attenuating Mod Depth
Replies: 14
Views: 381

Re: Attenuating Mod Depth

Offsets can come from any of lots of "CV processor" modules: for example, half of Mutable Blinds or all of Befaco A*B+C is perfect for this because each channel has an offset and an incoming CV scaler. Intellijel Quadratt (1U) would also work, because it's four cascading channels you can split into ...
by kpreid
Sat Dec 19, 2020 4:08 pm
Forum: Synthesis Techniques
Topic: Attenuating Mod Depth
Replies: 14
Views: 381

Re: Attenuating Mod Depth

To adjust the depth, it's probably not reducing the LFO amplitude, the way I've been trying to go at it earlier, it's probably just not allowing each channel to fully "close" all the way as has been suggested by others in this thread. “Not closing all the way” is accomplished by applying an offset....
by kpreid
Thu Dec 17, 2020 4:27 pm
Forum: Synthesis Techniques
Topic: Attenuating Mod Depth
Replies: 14
Views: 381

Re: Attenuating Mod Depth

Remember that panning more towards the middle means you need both VCA/LPG channels partly on . This means you need CV offsets. The easiest way to set this up is with a bipolar LFO (wave goes both positive and negative), and two channels of attenuvert+offset. Patch the offsets to the LPGs, then turn ...
by kpreid
Tue Dec 15, 2020 10:51 pm
Forum: Eurorack Modules
Topic: Arturia rackbrute cases
Replies: 276
Views: 45218

Re: Arturia rackbrute cases

I regret to inform you that neither will fit.

Measuring to the nearest quarter-inch: The handle is just under 20.25" long (wide). The RackBrute 6U itself is 19.25" W by just over 11.75" H by just over 3.25" D — plus however tall your modules' knobs are.
by kpreid
Sat Dec 12, 2020 10:44 am
Forum: Modular Synth General Discussion
Topic: DC coupled, resonant, Low freq VCF for CV slewing/ringing?
Replies: 7
Views: 381

Re: DC coupled, resonant, Low freq VCF for CV slewing/ringing?

Before looking for a specialized filter, try putting negative voltage into your existing filters' frequency CV and see how far you can push them slower.

“DC accurate” for pitch may be harder to find, though.
by kpreid
Tue Dec 08, 2020 9:53 am
Forum: Synthesis Techniques
Topic: Stacking non-simultaneous input signals?
Replies: 5
Views: 223

Re: Stacking non-simultaneous input signals?

No signal can become "too hot" this way, if by that you mean too high voltage for the input. Stacking/multing more than one signal doesn't add them. What it does is wire the outputs to each other so they get to fight over what the output voltage should be. Higher currents result because they're "pul...
by kpreid
Sat Dec 05, 2020 9:05 pm
Forum: Synthesis Techniques
Topic: Making a envelope hold midway.
Replies: 13
Views: 532

Re: Making a envelope hold midway.

If you want the envelope to resume rising after you stop it, then I think what you want is a slew-limiter style envelope module which can be paused — the one that comes to mind is Joranalogue Contour 1 (in Eurorack) with its HOLD input, and I see someone else pointed out Make Noise Function. If you ...
by kpreid
Tue Oct 27, 2020 11:50 am
Forum: Eurorack Modules
Topic: 4ms Pods
Replies: 571
Views: 60425

Re: 4ms Pods

their own website currently indicates that 40hp is the smallest one with the extra depth, They probably forgot to update that mention! Let them know! I'll hold out until they give the 20hp that extra depth; Don't hold your breath. I wouldn't be surprised if each specific size of Pod requires making...
by kpreid
Tue Oct 27, 2020 9:28 am
Forum: Eurorack Modules
Topic: 4ms Pods
Replies: 571
Views: 60425

Re: 4ms Pods

I've owned over a dozen Pods (modular modular synth!) and had one manufacturing defect (some holes were mis-drilled so they wouldn't hold screws at all) and 4ms replaced that one. All of the others have had perfect holes. Sometimes the sides need a bit of a squeeze to get the spacing between the top...
by kpreid
Sat Oct 24, 2020 5:34 pm
Forum: Eurorack Modules
Topic: hilarious 1HP modules / ideas
Replies: 178
Views: 5284

Re: hilarious 1HP modules / ideas

A few previous posts have mentioned “credit card slot”, and I just thought of a practical use for something like that and passive: reference cards/cheat sheets for your modules. If using the actual standard credit card form factor, two slots stacked would fit comfortably between the rails, and perha...
by kpreid
Sun Sep 27, 2020 12:49 pm
Forum: Eurorack Modules
Topic: Performing in Surround
Replies: 49
Views: 3138

Re: Performing in Surround

You can get multi-track hardware recorders such as the Zoom H4 or H6. (The H6 will record 6 tracks with the optional line-in accessory replacing the microphone.)
by kpreid
Thu Aug 20, 2020 9:26 am
Forum: Eurorack Modules
Topic: Eurorack shops
Replies: 304
Views: 86940

Re: Eurorack shops

I visited Patchwerks while I was on a trip in 2019. They were very friendly, and had about (guess from my current memory) 1200 HP of modules out for demo, including a Make Noise Shared System, a smaller Doepfer system, and a row-ful of Recovery Effects modules.
by kpreid
Sat Aug 08, 2020 10:18 am
Forum: Eurorack Modules
Topic: 4ms Pod with a lid?
Replies: 7
Views: 402

Re: 4ms Pod with a lid?

[oops, didn't mean to create a separate post, oh well]

Another option would be to 3D print a lid for a Pod. It's a quite easy shape to make, given a printer with a large enough bed.
by kpreid
Sat Aug 08, 2020 10:16 am
Forum: Eurorack Modules
Topic: 4ms Pod with a lid?
Replies: 7
Views: 402

Re: 4ms Pod with a lid?

If you like the shape of the Roland case then you might like Damaru x Elevator Sound Eurorack Modular Travel Case . Unpowered, lid, rounded corners, custom orderable in 50 mm depth. (I don't own one; I was just shopping around for an idea of replacing my main case with a set of swappable 84HP rows, ...
by kpreid
Sat Aug 08, 2020 9:45 am
Forum: Modular Synth General Discussion
Topic: Utility filters...
Replies: 22
Views: 825

Re: Utility filters...

For when you want to high pass a FM input to remove any DC offset I own a Shakmat Modular HiPass for this. [...] I would really like a similar design aimed to remove high frequencies but AFAIK it doesn't exist. WMD Quad Anti-Aliasing Filter ? It's not fixed-frequency but I'd expect that high freque...
by kpreid
Mon Jul 27, 2020 12:57 pm
Forum: Eurorack Modules
Topic: DivKid RND STEP
Replies: 139
Views: 10820

Re: DivKid RND STEP

Perhaps the problem is timing? Any sample-and-hold, no matter how good at sampling it is, placed after a sequencer or other stepped CV source will produce "wrong" results if the sampling is performed at the same time the CV source is in the middle of shifting to a new value. The test/workaround for ...
by kpreid
Sat Jul 18, 2020 12:31 pm
Forum: Synthesis Techniques
Topic: Arpeggiate via MIDI
Replies: 4
Views: 353

Re: Arpeggiate via MIDI

In the patches in the video, the third MIDI interface V/OCT output is not even patched to the Chainsaw, so it must be doing something else than providing a third note to Chainsaw, but I can't see where it might be going. The gate cables are also mysterious — there must be an envelope generator somew...
by kpreid
Fri Jun 19, 2020 1:17 pm
Forum: Eurorack Modules
Topic: A-111-4 Quad Precision VCO
Replies: 62
Views: 9989

Re: A-111-4 Quad Precision VCO

You should reposition the jumper so that it goes from center to the top pin marked PMOD instead of the center to the bottom pin marked LMOD.
by kpreid
Fri Jun 19, 2020 12:54 pm
Forum: Eurorack Modules
Topic: 4ms Pods
Replies: 571
Views: 60425

Re: 4ms Pods

Unfortunately, Make Noise seems to specify the depth of their modules ignoring the power connector sticking out. I found a picture of the back of a DPO and it appears to be two stacked boards with a straight power connector on the rear board. Any module with two stacked boards (of the typical stacki...
by kpreid
Thu Jun 18, 2020 11:30 am
Forum: Eurorack Modules
Topic: Shortwave Radio (Evaton RF Nomad?)
Replies: 134
Views: 13842

Re: Shortwave Radio (Evaton RF Nomad?)

I have no knowledge about antennas and I am having problem with getting good reception. I have tried using Evaton 25' extended antennas but that did not help. Now I found this 418MHz MHW Dipole-antenna https://www.mouser.se/datasheet/2/238/ant-418-mhw-ccc-x-1659371.pdf . Would that antenna help RFN...
by kpreid
Sun Jun 14, 2020 10:28 am
Forum: Eurorack Modules
Topic: A-111-4 Quad Precision VCO
Replies: 62
Views: 9989

Re: A-111-4 Quad Precision VCO

Yes, if you're always playing 4 notes together you can use the mix outputs for that. (And if you want to play 3 or 2, you can put a dummy cable into the corresponding output of the oscillators you're not using to remove them from the mix.) Note that the mix outputs are attenuated, presumably to avoi...

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