Відео

In some cases, yes. Through Zero comes in when an oscillator is being asked to produce a frequency below zero Hz. A TZFM oscillator will just run backwards in that case; a non-TZFM oscillator will stall. If the main pitch control voltage is high, and the modulation depth is low, you may not ever hear this difference. But if the fundamental frequency is low, as the modulation depth goes up this difference will come into play.

I know what you mean - I've dedicated several o_Cs to just Calibr8or! I'm really happy to hear you're getting good use out of it as well.

@@LearningModular I’m a relative newbie to modular (2 years in) and was wondering if you could advise how I can monitor the voltage coming out of my Moog Matriarch, which is my main keyboard input to the case. You mention in the video about a lot of VCOs becoming unstable below 0v so I’d like to overcome that issue. Is there something in the o_C that will measure voltage?

@@chitlun the app References in the original o_C firmware can output voltages, but I do not think it can read voltage levels in - I'll ask on the o_C forum on Facebook to see if there one that does. I use a digital multimeter, or a Mordax DATA module.

@@chitlun I was told that the alternate firmware Hemispheres has a Scope app that can be used to measure voltages.

@@LearningModular Nice one. Thanks for looking, appreciate it!

They're part of the Eurorack Expansion course on courses.learningmodular.com . I decided to make parts 1 and 2 public as they were general concepts I thought would benefit a lot people.

My pleasure!

Happy to help!

You're welcome

The Expert Sleepers Persephone is a newer design that can detect zero crossings. It is not perfect, but it is an improvement on the WMD. One workaround is to use copy the trigger signal and send it to the sync input on the VCO(s) to reset their waveforms for each new note. My personal workaround is to use vintage 70s-era VCAs (I have a custom cabinet made by Gentle Electric that has a bunch of 3080-based VCAs based on the Aries design).

The V-Scale modules are very useful; I owned several and also made videos about how to use them. Their major shortcoming for me was just one input for all five outputs, where in my case I want to be able to freely patch any of my sequencer channels to any combination of sound source that are patched to it. Also, they don't over the pitch offset, transposition, quantization, and sample & hold options that Calibr8or does.

Have you figured this out? I just included this 4MS module into my workflow.

​@@sillyworm I had it installed but went back to earlier O_C firmware editions, due to several bugs I encountered with Phazerville in my ornament & crime module. I prefer the original FW, Hemisphere and Benisphere editions. As for the 4ms Enosc - I found that my 'tuning' depended very much on the Root and Spread position of the knobs, to behave fine or not. Also I went through the Enosc calibration process again (as written in the 4MS manual ) and had no issues after that. I could very well play the Enosc from ky Keystep 37. Guess it's a matter of spending more time with the module :)

The auto-calibration app in indeed o_C is very cool. But it does not seen to have the performance oriented features of transposition, selective detuning after calibration, scale quantization, sample & hold, multiple presets, etc. (Although it might be a good thing to merge the two together, so you had its auto-cal across multiple notes combined with those extra features.)

I had the same confusion as you, so I asked Nick (DJ Phazer). This is his reply: "You can direct users to one of the four "+main" build variations, which all include Calibr8or. "+VOR" is for Plum Audio units, and "_flipped" is for upside-down module orientation. (I hope to make flipped mode a runtime option eventually)" I don't know the differences between Stock 1, Stock 2, etc., but I will ask him and add it to the article linked to the the information underneath the video.

I agree that CalTrans is better when it works - I had several of them for awhile. It's automated; its inputs normal downward which can save some patching. And it's definitely the better solution for when the tracking errors in a sound source are not linear. But...CalTrans does not work for percussive or plucked sound sources; it does not work well when the control CV is near or below 0v; it does not have the sample & hold function; its scales are harder to access as well. And although I've had times when CalTrans has worked miracles, I've also had occasions where it made the tracking accuracy worse. So that's why I commissioned this firmware. Plus a µo_C takes up less space and costs less than the combination of AJH V-Scale plus Klavis CalTrans I was using previously.

​@@LearningModular CalTrans is not perfect of course, I don't use it for the musical scales, I use half of a O&C in hemisphere mode for that purpose (or other dedicated quantizers I'm posessing). The Firmware should be just an app among others, locking the O&C just for a function is not the best way to use this versatile machine, IMO. But in the modular world there are lot of solutions for the same goal and each of us has his/her own preferences. So if you find the firmware being a good solution for your usage, that's cool ! Making music is the real interest, not the gears themselves. 🙂

@@KNHSynths I don't look at it as "I'm using my o_C to run Calibr8or"; I look at it as "I wish I had a better tracking compensation module, something that combined some of my favorite features of CalTrans and the V-Scale, plus a S&H function" - and it just so happened that the already-designed o_C hardware running custom firmware was the best/most immediate solution I could come up with. I bought half a dozen o_Cs to replace the V-Scales and CalTranses I was already using.

@@LearningModular it's true that there is no real perfect solution for this very important problem. Having a good tracking and quantization is crucial when using many VCOs or when recording in multiple passes. Perhaps thing will evolve. But it seems buyers in the eurorack world are more interested in techno-ish noises than in quantized melodies and harmonies, so the makers... But I'm sure the day you'll find something more effective, you'll show it on your channel !

I have a couple of analog designs that track within .3% over 15 oct or so (up to 20kHz) with drift under 20 ppm/K. Nobody would ever manufacture them. They have said it is overkill and not worth bothering with.

Yes - foothills of the Sandia Mountains.

​@@LearningModularlove the Sandia Mountains. Just been out here a year in Rio Rancho.

@@soundvandal3570 are you aware of New Mexico Control Voltage, the local modular group? Go to LearningModular.com and hit me up using the Contact form at the bottom of the page - we have both a meetup in ABQ and a concert in Santa Fe coming up in the next 2-3 weeks.

@@LearningModular I sort of heard about this. But it was on FB and I'm not on there. Thanks for this info. I don't have modular but I do have semi-modular and VCV... So... Yeah!

Thank you so much! I really appreciate hearing things like this. If you were wondering how the Sapel stacked up more directly against Marbles, you may enjoy this video: ua-cam.com/video/8alkiKnp2Sk/v-deo.html

For this video I was using an Arturia Keystep plugged into the 2600m via USB MIDI. But in the past I've also used the Keystep's gate output patched to override the S/H Gate below the AR generator. What modules have you been having trouble driving it with?