Here's an introduction to FM synthesis - kzbin.info/www/bejne/j6XOgKd5mJZ2bpY 00:00 Introduction 01:00 - Exponential FM 12:05 - Linear FM 19:10 - Through-Zero FM 20:58 - Example
@GeorgeLocke4 жыл бұрын
Day 3, Omri had 8 mushrooms. Day 4, Omri had 16 mushrooms. Day 5, Omri forgot what day it was.
@OmriCohen-Music4 жыл бұрын
Oh yeah :)
@pardaq244 жыл бұрын
"So here's a piece of paper." Nobody: ... Omri: V E R Y N I C E
@sh0ckvalue9894 жыл бұрын
I love having a deeper understanding of WHY the oscillators sound the way they do. Thank you for this.
@OmriCohen-Music4 жыл бұрын
Yeah, I find it fascinating!
@brianbergmusic5288 Жыл бұрын
I am grateful for this lesson. In my travels, I have been enjoying my Mercury-6 license (a software emulation of the Jupiter-6), and the cross-mod is a form of analog fm. The cross-mod does not seem to be a zero-fm circuit/algorithm. For my purposes with the Mercury-6, not having a zero-fm in the cross-mod is fine if the user: 1.) Does not need a fixed pitch (i.e. sound fx or drums). 2.) Does not need the originating timbre to change via the cross-mod (not using the envelope on the cross-mod). Now I know why a zero-fm circuit would be beneficial and also why phase-modulation was invented (which is the form of fm used in the Yamaha DX-line of digital synths). In addition, I can also see another reason why someone would wish to explore modular synthesis. Thank you for passing on such useful knowledge. [edit] I will pose one question. Is there any resources that would compare zero-fm to phase-modulation?
@NBSStudioMusic3 жыл бұрын
The best FM explanation I ever saw
@OmriCohen-Music3 жыл бұрын
Thanks!
@yasiin_miim32787 ай бұрын
I just love your explaination with mushrooms!
@sillysquirrel99794 жыл бұрын
Drunk game: 1. open any omri video 2. drink every time he said "very nice"
@maracuder3 жыл бұрын
I was always wondering, what through-zero would mean. Now, thank you for your really comprehensive explanation, now I understand the concept.
@OmriCohen-Music3 жыл бұрын
I'm really happy it was helpful :)
@ndf33 жыл бұрын
Enlightening video about synthesis AND psilocybin tolerance
@CinematicLaboratory3 ай бұрын
With too much mushrooms, the days will also get longer :). Super cool explanation!
@exoner61102 жыл бұрын
From time to time I have the need to watch videos like this one again to get back-grounded to the roots of what its all about in modular. The best way to keep things simple and effective is to know about the basics. All these feature rich, mighty and "deeeeep" modules are nice to play with for a short while (like a toy), but when it comes to serious patching, most of the times I end up with the modules, that offer limited functionality but a clear design. This is why I love the fundamental modules supported by a few collections, offering functionalities that cannot be patched with the fundamentals. Videos like this one help a lot to get the most out of basic modules and to make them sound amazing. Thank you so much for sharing your knowledge, Mr. Cohen.
@OmriCohen-Music2 жыл бұрын
I appreciate it, thank you!
@rnx317 Жыл бұрын
seriously one of the best ressources on modular in general - thanks for the good work my man!
@OmriCohen-Music Жыл бұрын
I appreciate it!
@stephencrane561 Жыл бұрын
Brilliant explanations and straightforward examples - thank you.
@OmriCohen-Music Жыл бұрын
Glad you enjoyed it!
@tunefulsensation30442 жыл бұрын
I totally didn't know that I could use FM synthesis without minding about tuning issues. I should have watched this much, much earlier. This is a brilliant video!
@OmriCohen-Music2 жыл бұрын
Glad I could help!
@leonardovelazquez10292 жыл бұрын
I understand now thank you!
@OmriCohen-Music2 жыл бұрын
Glad it helped!
@screenslaveuk53084 жыл бұрын
Great explanation, very clear. I now understand why it sometimes goes badly wrong ...
@OmriCohen-Music4 жыл бұрын
Thanks! Yeah, it's super interesting.
@Leo_Wieber2 жыл бұрын
Thanks a lot, you are explaining extremely good and the Topic becomes very clear !
@OmriCohen-Music2 жыл бұрын
Glad it was helpful!
@BoardgameBaker3 жыл бұрын
When Omri puts on his teacher hat KZbin listens. Very educational, great stuff!
@OmriCohen-Music3 жыл бұрын
Cheers!
@luiscoderapuzo3 жыл бұрын
I should have seen this video years ago, thank you very much!
@OmriCohen-Music3 жыл бұрын
Glad it was helpful!
@derekholland33289 ай бұрын
thanks for explanation, never knew differences.
@OmriCohen-Music9 ай бұрын
Happy to help!
@PargusAuriga3 жыл бұрын
Amazing explanation!
@OmriCohen-Music3 жыл бұрын
Glad it was helpful!
@Steve.Benedict4 жыл бұрын
Awesome. I didn't realize the FM inputs were different on some of these oscillators but wondered why they didn't behave the same. Now I know why :) Should be easy to tell the difference now just by listening, I think...
@OmriCohen-Music4 жыл бұрын
Glad I could help! Cheers!
@vizion96804 жыл бұрын
Fantastic video Omri I learned so much about FM thank you!
@OmriCohen-Music4 жыл бұрын
Thanks so much!
@veets18913 жыл бұрын
Thank you for this thorough and insightful illustration.
@OmriCohen-Music3 жыл бұрын
Glad it was helpful!
@harrisonfived49664 жыл бұрын
Thanks for your work Omri, for guys like me who knew little of this stuff before VCV Rack your videos are invaluable :)
@OmriCohen-Music4 жыл бұрын
Hey, that's great, thank you so much!
@scottkc2cad7334 жыл бұрын
Boy that really shed some lite for me....And thanks for the pointer on the head phones the other day.I should be getting them tomorrow .....Scott
@OmriCohen-Music4 жыл бұрын
Oh that's great! Let me know how you like them :)
@StudioSixPlusOne4 жыл бұрын
nice examples, your examples make understanding easy
@OmriCohen-Music4 жыл бұрын
That's great, thank you!
@juniorbonner4 жыл бұрын
excellent and informative
@OmriCohen-Music4 жыл бұрын
Glad you liked it
@persywho58634 жыл бұрын
you will never be the same after day 6🍄🥺
@OmriCohen-Music4 жыл бұрын
True...
@andygrichting4 жыл бұрын
nice one, spot on explanation and easily understandable. thanks for sharing
@OmriCohen-Music4 жыл бұрын
Glad it was helpful!
@FourTetTrack4 жыл бұрын
Mushroom algebra, best algebra :D. I love your videos Omri, Thanks for sharing them!
@OmriCohen-Music4 жыл бұрын
Glad you like them! Thank you!
@LYFoulidis4 жыл бұрын
I can see clearly now. Thanks!
@OmriCohen-Music4 жыл бұрын
That's great, thanks!
@devimckarof75584 жыл бұрын
Priceless information, Thanks Omri ^_^
@OmriCohen-Music4 жыл бұрын
Glad it was helpful!
@PfhorShark3 жыл бұрын
very nice! I wish the mushrooms grew exponentially like that in my area ;) you are such a good teacher, thank you so much for your videos
@OmriCohen-Music3 жыл бұрын
Thank you very much!
@Jimantronic3 жыл бұрын
Beautifully explained, thank you :)
@OmriCohen-Music3 жыл бұрын
Glad it was helpful!
@sir_williamW3 жыл бұрын
Thank you!!!!
@OmriCohen-Music3 жыл бұрын
Cheers!
@PspiralifeTutorials4 жыл бұрын
Great video! well explained thank you !
@OmriCohen-Music4 жыл бұрын
Thanks so much!
@GeorgCarlson4 жыл бұрын
excellent as always, thanks!
@OmriCohen-Music4 жыл бұрын
Thanks so much!
@ShapeNoise4 жыл бұрын
The only way out is THRU ZERO 🙏
@ZuluEchoRomeoOscar4 жыл бұрын
Ain't that the truth...
@chemicalBR04 жыл бұрын
who knew that FM would need so many mushrooms and so much paperrrrrrr :)
@OmriCohen-Music4 жыл бұрын
The only FM is mushroom FM...
@7177YT4 жыл бұрын
I was intruiged by the through zero comcept since I stumbling over Divkids videos on oscillators using it. Thank you for bringing the idea to rack. (;
@OmriCohen-Music4 жыл бұрын
Oh man, this whole FM thing is super exciting!
@7177YT4 жыл бұрын
@@OmriCohen-Music agreed! (:
@Val_Cla4 жыл бұрын
You have a ukulele ! I have one too
@OmriCohen-Music4 жыл бұрын
Still trying to figure out how to tune it...
@Val_Cla4 жыл бұрын
@@OmriCohen-Music mine is G lowC E A , but you can also try some open tunings ! Slide ukulele can be interesting too, i tried that a few days ago :)
@7177YT4 жыл бұрын
+1 for ukulele lovers (:
@markovchains5734 жыл бұрын
Very interesting!
@OmriCohen-Music4 жыл бұрын
Thanks!
@GeorgeLocke4 жыл бұрын
Also worth mentioning phase modulation, which, iirc, is how the DX synths worked. Submarine has some oscillators that allow phase modulation, and the relatively new mini oscillators from BogAudio can do it too.
@GeorgeLocke4 жыл бұрын
Phase modulation being different from phase distortion. Phase modulation: Sin(f1*t + A*sin(f2*t)). Frequency modulation: sin(f1*t*(1+ A*sin(f2*t))).
@GeorgeLocke4 жыл бұрын
Phase modulation sounds identical to through-zero linear FM, though, doesn't it? So maybe just an academic distinction.
@OmriCohen-Music4 жыл бұрын
Good call! Thanks!
@KrikIDDQD2 жыл бұрын
@@GeorgeLocke They are identical if the modulating signal is a sine. If the modulator has a different signal, then the results begin to differ. Phase modulation appeared as a way to optimize the frequency modulation algorithm (because it is easier to implement, more stable and requires less computing power). However, when FM synthesizers with interchangeable waveforms began to appear (like TX81Z and AdLib), then the whole catch surfaced, lol.
@GeorgeLocke2 жыл бұрын
@@KrikIDDQD very cool, thanks!!
@JanDTio4 жыл бұрын
Big light on an obscure theme, thanks, Omri! I am just wondering how one can know the type of FM oscillator except by trial and error?
@OmriCohen-Music4 жыл бұрын
Yes, it's an exciting subject! Well, the manual is your friend I guess... And if there's no manual then yes, trial and error.
@loopinnerthe3 жыл бұрын
thank you so much. you have opened my mind to fm and through zero and explained its effect. but how do these clever oscillators do negative frequencies? do they just reverse the sign so -30Hz becomes +30Hz?
@OmriCohen-Music3 жыл бұрын
I'm happy it helped :) About the frequencies, they don't do negative frequencies, they invert the signal and bring it up the frequency range so, for example, if it goes 30Hz "bellow" zero, it will be inverted and will go to 30Hz. Does this make sense?
@loopinnerthe3 жыл бұрын
@@OmriCohen-Music gotcha. thanks.
@adamsmith70582 жыл бұрын
@@OmriCohen-Music Trying to remember the theory here, isn't negative in this context just inverting phase?
@XiXora4 жыл бұрын
If you want to save the world and if you like to draw. Perhaps drawing on your table with a white board marker will work? Although, maybe a wipeable vinyl mat if you like to keep your desk clean along with the look of the video. I do love the explanation of how this works. That Linear A-HA moment was great and now I know why you like FM-OP so much!
@OmriCohen-Music4 жыл бұрын
Man, you're totally right, but I couldn't find anything now that everything is closed. On the positive side though, my son used those papers to draw on them :)
@kionazaki88924 жыл бұрын
thanks
@OmriCohen-Music4 жыл бұрын
Cheers!
@fritsvanzanten35732 жыл бұрын
Interesting video. Sadly, the Woldemar is not supported anymore (you can't add it anymore). The input you used to demo the linear FM has no name, how did you know it was linear?
@OmriCohen-Music2 жыл бұрын
Thanks :) Yeah, Woldemar is still not in the library but its on its way I hope. About the FM input,. just to make sure, I contacted the developer.
@studio48nl2 жыл бұрын
With vcv rack you don't have the issue of DC offsets you might experience with hardware (analogue) VCO's modulating. Any tip on that? Besides an offset module, I have heard one could use a highpass filter?
@OmriCohen-Music2 жыл бұрын
Well, yeah. If you think about it, DC offset is just voltage that has either a very low frequency, or it has the frequency of 0Hz. If you high pass everything below 20Hz, all of those signals will be filtered out. That's how a DC blocker works actually, and that's why you need a DC coupled interface for sending pitch and LFOs and such so they don't get filtered out. Does this make sense?
@studio48nl2 жыл бұрын
@@OmriCohen-Music yes, a bit. But I'm still wondering if it would do any good with '0 hz'. SO theoretically, if I would chain a wave (VCO or LFO) through an offset generator through a HPF, the offset is gone? I need to try this...!
@OmriCohen-Music2 жыл бұрын
@@studio48nl Yeah, a HP filter should get rid of any offset. of course, it might also effect the sound depending on how low it will go...
@PspiralifeTutorials4 жыл бұрын
Basically, if you want normal mushrooms, use Linear through Zero FM. But if you want the effect of infected mushroom, use exponential FM. HAHA!
@OmriCohen-Music4 жыл бұрын
You got it! :)
@kp8923 Жыл бұрын
@7:59 Wow, that extra oomph you put on the rolled R in "piece of paper" reminded me of Piece of Paper by Amon Tobin. Haha. Any chance you're a fan?
@OmriCohen-Music Жыл бұрын
Wow, that's an amazing track! Thanks for this :)
@kp8923 Жыл бұрын
@@OmriCohen-Music I thought you'd appreciate it if you weren't familiar. Take care.✌️
@rubbaclaymo28224 жыл бұрын
cant find any videos on exponential thru zero. does it just not exist?
@OmriCohen-Music4 жыл бұрын
Well, I'm pretty sure something like this cannot exist because you will never really reach zero...
@rubbaclaymo28224 жыл бұрын
@@OmriCohen-Music good point and a tough maths reality check for me
@karmafxify3 жыл бұрын
Naive Exponential FM will not cross 0Hz. However, if you correct for the Exponential FM detuning you will need a Through-Zero oscillator, just like in the Linear FM case. I've written a paper on this subject, which list the formulas for corrected Exponential FM tuning: karmafx.net/docs/karmafx_DAFx2020_paper_61.pdf It also explains the differences between Linear FM and Phase Modulation.
@chitlun4 жыл бұрын
And by day 6 things were getting quite psychedelic 🤪 👍 ✌️
@OmriCohen-Music4 жыл бұрын
Oh yeah!
@blueconcretezebra4 жыл бұрын
Hungry now...
@theropodfx4364 жыл бұрын
Doesn't the Bogaudio FM module actually use Phase Modulation instead of Frequency Modulation? If you run the same scenario of plugging your sequencer CV into the FM input on FM-OP, the only thing you'll hear is some little clicks at the note change. No change in pitch whatsoever because it's just changing the phase rather than the pitch. I think most linear FM synths are actually using phase modulation, but they still call it FM.
@OmriCohen-Music4 жыл бұрын
Well, I'm pretty sure that most of the time, FM in the digital realm is actually Phase Modulation, but we just call it FM. I'm not 100% sure though, but the important thing is the result I guess.
@theropodfx4364 жыл бұрын
I think that Lindenberg module is one of the only times I've seen digital FM that's actually linear FM and not Phase Modulation. Good find. In practice I don't think it makes a ton of difference unless you're feeding it a square wave.