Search found 5160 matches

by Dr. Sketch-n-Etch
Wed Feb 19, 2020 6:01 pm
Forum: General Gear
Topic: Behringer: practices, ethics, morals and legitimacy.
Replies: 873
Views: 24347

Re: Behringer: practices, ethics, morals and legitimacy.

None of these people have *any* legal claim on ARP IP , and many might counter that they don't deserve any ethical credit at all, considering the poor choices made in the final years of ARP's existence. There is no ARP IP. ARP has been out of business longer than IP even exists. Patents are in forc...
by Dr. Sketch-n-Etch
Wed Feb 12, 2020 4:59 pm
Forum: Artist Discussion
Topic: Lyle Mays passed away
Replies: 14
Views: 305

Re: Lyle Mays passed away

Very bummed to hear this news. Lyle Mays is one of my musical heroes. He was an amazing piano and synth player, and his fingers looked like they bent about four different ways.
by Dr. Sketch-n-Etch
Tue Jan 28, 2020 3:21 pm
Forum: General Gear
Topic: Behringer: practices, ethics, morals and legitimacy.
Replies: 873
Views: 24347

Re: Behringer: practices, ethics, morals and legitimacy.

The laws of thermodynamics say the same thing, but for different reasons. There are four laws of thermodynamics: 0 -- if System A is in equilibrium with System B, and System B is in equilibrium with System C, then System A is in equilibrium with System C. 1 -- Energy is conserved 2 -- All systems u...
by Dr. Sketch-n-Etch
Sat Jan 25, 2020 1:39 pm
Forum: Music Tech DIY
Topic: Mouser vs Tayda 1% resistor quality?
Replies: 48
Views: 4486

Re: Mouser vs Tayda 1% resistor quality?

I've been buying Yageo and Stackpole 1% resistors from Digikey, and have no complaints at all. My goal is to have 100 of every value on the E96 scale -- so far I've got about a third of them. I bought so many for various filterbank and comb-filter projects I've been working on, so I don't need trimm...
by Dr. Sketch-n-Etch
Sat Jan 25, 2020 1:15 pm
Forum: General Gear
Topic: Behringer: practices, ethics, morals and legitimacy.
Replies: 873
Views: 24347

Re: Behringer: practices, ethics, morals and legitimacy.

just saw today someone put on sale in my areas music forum B 303 for 150€. Used for a few hours. Folks buying and using them like socks. Thats the biggest issue i see here. Waste of resources and feeding the consumerism. I think it's more likely that the low entry price is encouraging people to buy...
by Dr. Sketch-n-Etch
Fri Jan 24, 2020 7:49 pm
Forum: Eurorack Modules
Topic: Intellijel Morgasmatron, Planar II, and Rubicon II
Replies: 170
Views: 17249

Re: Intellijel Morgasmatron, Planar II, and Rubicon II

brandonlogic wrote:
Fri Jan 24, 2020 1:02 pm
is there an official rubicon ii thread? searched but couldnt find one
You're in it!
by Dr. Sketch-n-Etch
Thu Jan 23, 2020 8:46 am
Forum: Production Techniques
Topic: Alternative music theory ?
Replies: 301
Views: 26460

Re: Alternative music theory ?

Drop all the C#s to Cs and now you have the quartal pentads for all the modes of A melodic minor. I had to get up in the middle of the night to write them down, because they were giving me insomnia. Here they are: MelodicMinor.png So, the major modes are basically just stacked perfect fourths with z...
by Dr. Sketch-n-Etch
Thu Jan 23, 2020 8:30 am
Forum: General Gear
Topic: Behringer: practices, ethics, morals and legitimacy.
Replies: 873
Views: 24347

Re: Behringer: practices, ethics, morals and legitimacy.

Your post reminds me of something from Uri's play book on how to argue against anti Behringer messaging. Quote from Uri B "Frankly, I never understood why someone would charge you US$ 4,000 for a minimoog, when the components just cost around US$ 200." www.gearslutz.com/board/electronic-music-instr...
by Dr. Sketch-n-Etch
Wed Jan 22, 2020 5:16 pm
Forum: General Gear
Topic: Behringer: practices, ethics, morals and legitimacy.
Replies: 873
Views: 24347

Re: Behringer: practices, ethics, morals and legitimacy.

I'll tell you what I think is unethical: Moog charging $3000 for a Model D in 2017 or whatever, when electronic manufacturing is radically less expensive than it was in 1971. All the electronic parts in a real Model D aren't worth more than $100, and the hardware another $100. The most expensive par...
by Dr. Sketch-n-Etch
Wed Jan 22, 2020 4:51 pm
Forum: Production Techniques
Topic: Alternative music theory ?
Replies: 301
Views: 26460

Re: Alternative music theory ?

I too am glad this thread has been resurrected. I have been excited lately about Messiaen's modes of limited transposition; specifically the chord tables they generate. There are quite a few excellent articles on this by an academic named Chiong Wai-Ling at the Chinese University of Hong Kong (she h...
by Dr. Sketch-n-Etch
Mon Jan 20, 2020 12:10 am
Forum: General Gear
Topic: Behringer: practices, ethics, morals and legitimacy.
Replies: 873
Views: 24347

Re: Behringer: practices, ethics, morals and legitimacy.

All I know is that if Behringer had existed when I was a teenager, my future probably would have looked very different. I think it's great that someone is making all these classic instruments available to people on a tight budget. I say more power to them. And I for one wouldn't hesitate to buy a Be...
by Dr. Sketch-n-Etch
Thu Jan 09, 2020 3:41 pm
Forum: Eurorack Modules
Topic: Intellijel Rubicon 2 vs SSF Zero Point Oscillator
Replies: 4
Views: 520

Re: Intellijel Rubicon 2 vs SSF Zero Point Oscillator

Dear BasariStudios guy (sorry, I don't know your name), I have no beef with you. I enjoyed your video (although certain aspects of it made me a little agitated). I also have no problem with the ZPO. It looks like a great oscillator. I'm just a bit of a stickler for the proper use of terms. I think i...
by Dr. Sketch-n-Etch
Thu Jan 09, 2020 3:28 pm
Forum: Music Tech DIY
Topic: OP AMPS
Replies: 81
Views: 10420

Re: OP AMPS

Nice. The data sheet mentions: Rail-to-rail output swing to within 800 mV with a 2-kΩ load (+-15v). Wondering if this is the same with +-12v rails. If I'm reading the data sheet correctly, TL07x mentions @ 2-kΩ load (+-15v supply) = +-11.5 / 11.75 v. Can only guess that with +-12v supply rails, it'...
by Dr. Sketch-n-Etch
Thu Jan 09, 2020 3:23 pm
Forum: Music Tech DIY
Topic: theremin based TZVCO
Replies: 27
Views: 1507

Re: theremin based TZVCO

I built a beat-frequency VCO for my first Bode frequency shifter, based on ideas from Electronotes. It was not great. I've since gone with a dual Rubicon core, with one syncing the other, which interestingly gives perfect quadrature as well as through-zero FM. Along with one-VCA multipliers (with fo...
by Dr. Sketch-n-Etch
Tue Jan 07, 2020 6:42 pm
Forum: Eurorack Modules
Topic: SSF zero point oscilator
Replies: 230
Views: 20692

Re: SSF zero point oscilator

Also, at the risk of belabouring the point just a little bit, I wanted to respond to the comment about the Rubicon and "true TZFM". The Rubicon achieves true TZFM. There is no post-VCO inversion of the waveform. Indeed, no waveshaping is required at all. The linear FM can and does go smoothly throug...
by Dr. Sketch-n-Etch
Tue Jan 07, 2020 6:33 pm
Forum: Eurorack Modules
Topic: SSF zero point oscilator
Replies: 230
Views: 20692

Re: SSF zero point oscilator

Hello ari ellis , I did respond in this thread, but I have since moved my response to the thread just about the video, because it was pointed out to me (quite rightly, I fear) that it is not necessarily very good etiquette for a designer to make critical comments about other people's designs on thei...
by Dr. Sketch-n-Etch
Tue Jan 07, 2020 6:18 pm
Forum: Eurorack Modules
Topic: Intellijel Rubicon 2 vs SSF Zero Point Oscillator
Replies: 4
Views: 520

Re: Intellijel Rubicon 2 vs SSF Zero Point Oscillator

In this Video i tried to Compare the Rubicon 2 vs the ZPO. I tried to the best of my abilities and experience to show what they can do, at least part of it and also tried to be non biased towards either one of them. You be the Judge. https://youtu.be/rmTltkogVtk Hello All, Doc Sketchy here. I desig...
by Dr. Sketch-n-Etch
Tue Jan 07, 2020 5:27 pm
Forum: Eurorack Modules
Topic: SSF zero point oscilator
Replies: 230
Views: 20692

Re: SSF zero point oscilator

EDIT: Post moved to a different thread.
by Dr. Sketch-n-Etch
Sat Jan 04, 2020 11:02 pm
Forum: Eurorack Modules
Topic: Today my small discovery was...
Replies: 841
Views: 79303

Re: Today my small discovery was...

If you CV a crossfader with a pulse wave, then use two other waveforms from the same VCO as the A and B inputs to the crossfader, then adjusting the pulse width is like sliding a window across the two waveforms, one reflected and one transmitted.
by Dr. Sketch-n-Etch
Sat Jan 04, 2020 10:42 pm
Forum: Eurorack Modules
Topic: Intellijel DIXIE II (now skiff friendly)
Replies: 45
Views: 13321

Re: Intellijel DIXIE II (now skiff friendly)

xcc wrote:
Sat Jan 04, 2020 7:57 pm
Bumping this old thread. In LFO mode, can the different waveforms be used simultaneously?
Absolutely. All LFO mode does is adds a much larger capacitor into the core integrator, thus making the oscillator oscillate much more slowly at the same control voltage.
by Dr. Sketch-n-Etch
Sat Jan 04, 2020 1:59 pm
Forum: Music Tech DIY
Topic: Are there any analog phase modulation VCOs?
Replies: 141
Views: 9486

Re: Are there any analog phase modulation VCOs?

Thanks for your responses. This has been a very enlightening exchange (for me, at least). One think I'm thinking about with respect to the Rubicon: What if an audio-range sine wave is sent to the TZFM input (at full strength modulation Index), with Symmetry at zero (balanced TZFM) and a slow wavefor...
by Dr. Sketch-n-Etch
Fri Jan 03, 2020 2:06 am
Forum: Music Tech DIY
Topic: Are there any analog phase modulation VCOs?
Replies: 141
Views: 9486

Re: Are there any analog phase modulation VCOs?

yes, it has a lot in common with frequency shifting and wavefolding. a TZVCO can be implemented with a wavefolder followed by a sine shaper. it can also be implemented with an FM input and a circuit to deal with the zero crossing. in the video i show, its done by wavefolding and sineshaping in a si...
by Dr. Sketch-n-Etch
Fri Jan 03, 2020 1:43 am
Forum: Music Tech DIY
Topic: Are there any analog phase modulation VCOs?
Replies: 141
Views: 9486

Re: Are there any analog phase modulation VCOs?

OK, I think I know what to do. This is not that different than frequency shifting. It requires many of the same elements. Indeed, it should be possible to simply rearrange the elements of a Bode frequency shifter to achieve a phase modulator. This is because of the trigonometric identity: sin(a+b) =...
by Dr. Sketch-n-Etch
Fri Jan 03, 2020 1:09 am
Forum: Music Tech DIY
Topic: Are there any analog phase modulation VCOs?
Replies: 141
Views: 9486

Re: Are there any analog phase modulation VCOs?

Well, I can't see that that was anything too special from a sonic standpoint. I went on Wikipedia and looked up phase modulation, and there is a cool mathematical graphical thing on there. I did a few calculations on Excel for a sine wave phase-modulating another sine wave, and the results were fair...
by Dr. Sketch-n-Etch
Thu Jan 02, 2020 6:22 pm
Forum: Music Tech DIY
Topic: Are there any analog phase modulation VCOs?
Replies: 141
Views: 9486

Re: Are there any analog phase modulation VCOs?

Sorry to be a newb, but can someone explain to me exactly what phase modulation does to a waveform? Looking at the scope shots of J3RK's tests, how do I know that I'm looking at phase modulation? I feel like if I knew exactly what phase modulation was, I could design something to achieve it relative...

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