DIY SYNTH VCF Part 2: Active Filters & Resonance

  Рет қаралды 184,191

Moritz Klein

Moritz Klein

Күн бұрын

Пікірлер: 283
@Money4Nothing
@Money4Nothing 3 жыл бұрын
Electrical Engineer here, I wish you existed back when I went to school lol. Great job.
@iamsushi1056
@iamsushi1056 3 жыл бұрын
I'm learning more from this than my entire college course.
@xasdrubalex
@xasdrubalex 3 жыл бұрын
cs engineer here, with a lot of EE courses, ffs this is the best content ever
@AtlasMvm
@AtlasMvm 3 жыл бұрын
this channel is unreal. no fluff, all the necessary information, clear step by step diagrams, detailed explanations, BOM in description. thank you so much. Grüße aus Kalifornien!
@chitlitlah
@chitlitlah Жыл бұрын
I hadn't realized there was a BOM in the description until I read your comment. I think I have all the components already, but nevertheless that's some dedication by the author.
@larrymorley8968
@larrymorley8968 3 жыл бұрын
Ich habe dieses und mehrere andere Videos gefunden, die Sie durch Glück erstellt haben, während ich auf KZbin stöberte. Ich habe Mitte der 1970er Jahre mit Elektronik angefangen, also habe ich eine sehr gemischte analoge und digitale Sichtweise. Schade für diejenigen, die jetzt anfangen, dass in den 80er und 90er Jahren viel nicht triviales analoges Wissen in ein schwarzes Loch gefallen ist. Danke, dass du geholfen hast, es zurückzubringen!
@richardbrookesMA
@richardbrookesMA 3 жыл бұрын
Never have i waited for a sequel this much before... Enlightened as usual.... Now impatient for part 3. Just brilliant.
@UPCOWEBINARS
@UPCOWEBINARS 3 жыл бұрын
me too,!!!
@jcowe9194
@jcowe9194 3 жыл бұрын
me too, this is the synth electronics I've always wanted!
@Afrotechmods
@Afrotechmods 3 жыл бұрын
You make very good tutorials.
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
right back at ya!
@lilliampumpernickel9916
@lilliampumpernickel9916 3 жыл бұрын
MAKE MORE VIDEOS!!
@wesleymays1931
@wesleymays1931 3 жыл бұрын
Where have you been the last three years?
@jimmysyar889
@jimmysyar889 3 жыл бұрын
Hey!! One more to the list.
@vijayramachandran2943
@vijayramachandran2943 3 жыл бұрын
@afrotechmods Why you not making any videos
@FreeCircuitLab
@FreeCircuitLab 3 жыл бұрын
You have awesome knowledge. Keep it up...
@warpigs330
@warpigs330 3 жыл бұрын
This is really tremendous. The step by step slow build up is really valuable. I got some chips a while ago that can be used for a VCF but the circuit was too complex for me to get working monolithically. I feel like I can get something simple working first, which is always useful. The fact you are using the most basic parts is really useful because I already have them. Talking about the little choices about clipping resonance, how the feedback path is through the capacitor, this stuff is really useful as I knew resonance was feedback and I could sometimes get my non oscillating filters to oscillate with feedback, but it didn't sound like resonance.
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
yeah, breaking stuff like this down to the bare essentials is really the way to go if you want to get anywhere with circuit design i think!
@warpigs330
@warpigs330 3 жыл бұрын
I've been learning to test all my circuits individually before getting PCB's made. Sometimes I get too excited and hasty.
@gustavosicaviani7553
@gustavosicaviani7553 3 жыл бұрын
@@MoritzKlein0 life blesses you Moritz!
@JYelton
@JYelton 3 жыл бұрын
Moritz, I just want to express my thanks for your clear explanation and diagrams. You are a true-born teacher! Thanks for doing this series, it neatly brings together my interests in electronics and synthesizers!
@JayJay-ki4mi
@JayJay-ki4mi Жыл бұрын
Mate, this video and the last one has taught me so much in 1 hour. Lots of things clicked in my head and it just makes sense. Amazing work, and thank you so much.
@danielleohallisey4218
@danielleohallisey4218 3 жыл бұрын
I've been making audio circuits with op-amps for forty years now, and have never seen such a clear explanation of how they work. Thanks!
@CircularMirror7
@CircularMirror7 3 жыл бұрын
This is hands down one of my favorite electronic design series. Great work wish I had this starting out.
@ethnopsyx
@ethnopsyx 2 жыл бұрын
YOU ARE GOD OF ELECTRONICS! Your videos are exactly what I was looking for. Thanks a lot!!!
@nietaki
@nietaki 2 жыл бұрын
This is awesome! The theory explanations as they're needed, the incremental progress with the oscilloscope insights, the sound of the filter, everything. Thank you for demystifying analog synthesis for the uninitiated!
@benjaminlehmann
@benjaminlehmann 10 ай бұрын
That was so cool. Thanks man.
@Stelios.Posantzis
@Stelios.Posantzis 3 жыл бұрын
This is one of the most intuitive explanations of electronics circuits I've come across so far - perfect for beginners, great for others wishing to review their understanding of fundamental circuits.
@dusteye1616
@dusteye1616 Жыл бұрын
That sequence at the end sounds amazing!!!
@256k_
@256k_ 3 жыл бұрын
I've watched so many tutorials about filter circuits and it's always been a bit confusing, but this is by far the most in depth simple and digestible explanation i've ever seen! so thank you so much. i can actually now design my own rather than just blindly follow a schematic!
@Five2nd
@Five2nd 3 жыл бұрын
I can not possibly describe how happy I am to have found your channel. Amazing tutorials. I’ve been wading through electronics building tutorials and theory for years and for the first time I finally feel like I grasp it. Also It’s nice to learn from someone who clearly has an ear for a beautiful tone. I’m amazed at the beautiful sound of this filter. Going to become a patreon supporter now! Byeee
@Chasing_Thoughts
@Chasing_Thoughts 3 жыл бұрын
This is the informative and quality content I search for, I immediately subscribed!!!!🤪
@HowlingUlf
@HowlingUlf 3 жыл бұрын
I want to like this video TWICE! It's the second video from Herr Klein I watch! Monster clear information! KZbin should bring back the ***** five star ratings for videos instead of a simple thumb up or down!
@travissutherland8502
@travissutherland8502 7 ай бұрын
Best intuitive electronics lessons I have seen on YT, and I have seen many. You are niched into only synth nerds here. Clip out the pure electronics lessons and your following will be huge.
@manofguitar
@manofguitar 3 жыл бұрын
This is so good. Thank you for sharing your knowledge in such a clear fashion!
@thiagoennes
@thiagoennes 3 жыл бұрын
Man, this series is great, please make another hundred videos like this one. I am a casper electronics orphan.
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
will do!
@Syncopator
@Syncopator 3 жыл бұрын
Very nice. I was already familiar with all the principles here, but I've never seen as clear and concise a discussion of them. Even if just from the standpoint of op-amps which are a great building block for a LOT of analog electronics for any purpose. Great job!
@marcusbennett6995
@marcusbennett6995 3 жыл бұрын
Absolutely Amazing. Total respect for the simple way you explain something so complicated (for me anyway) and make it sound so simple. You are a genius.
@AeDevices
@AeDevices 3 жыл бұрын
This video has brilliance all the way up.
@TheSPoS
@TheSPoS 3 жыл бұрын
Some of the best content of its kind on KZbin.
@LouisSerieusement
@LouisSerieusement 3 жыл бұрын
10:11 My god what the resonnance does to the waveform when we look at tit with an oscilloscope is so fascinating and beautiful. I always knew basic stuff like potentiometers beeing avriable resistors, what a diode is ect, but with your video I can finally understand basic synth electronic without asking too many questions to my engineer friend ! Cheers and love from France !
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
everyone loves looking at tit!
@selectedacre
@selectedacre 3 жыл бұрын
Another great video. Really... Like, really for real. ;) I've been producing electronic music for 25+ years. Initially with hardware, and then computers. Additionally, some 20 years of DSP programming, especially filters. in more recent years, I decided to pursue the proper DIY electronics side of things. I say all this because, after so much exposure - learning and using filters as I have - this video provided one of the most amazing 'a-ha' moments that I've experienced. Your explanation / thorough discussion of resonance made it click in a way that has eluded me up until now. Thank you again for the time and effort you put in to producing the videos. Definitely time for me to become a proper patron - you've earned it x10000 imo
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
thanks, much appreciated!
@meretrix
@meretrix 3 жыл бұрын
Another fabulous tutorial, I am SO pumped for Part 3 :D
@itsbruxyall
@itsbruxyall 3 жыл бұрын
i was hanging on every word, not wanting this video to end. This is SO helpful!
@d.j.peters
@d.j.peters 3 жыл бұрын
I never clicked so fast on the subscribe button while watching a tutorial like video as before. Great job well done and greetings from Germany.
@DigitalStains
@DigitalStains 3 жыл бұрын
Now I get it why it's called resonance. These videos are awesome, thank you
@annamoan2107
@annamoan2107 3 жыл бұрын
Thank you so much for all the crystal clear explanations applied specifically to audio. Like after each one of your videos, so many thinks are so much clearer for me now !
@mattwillis3219
@mattwillis3219 3 жыл бұрын
The best OP-AMP Tutorial on KZbin, Outstanding work Maritz!
@musictreeproductions5994
@musictreeproductions5994 3 жыл бұрын
Loving this series 👏👏👏👏 your explanations are so clear and concise! In addition to seeing the final schematic, it would also be awesome to get a little closer look at exactly where you're hooking things up to the breadboard while you're doing it! Regardless, I'm forever grateful for your content and can't wait for the next video!!
@soejrd24978
@soejrd24978 3 жыл бұрын
I'd love if you included the "end"-schematic at the end of the video
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
noted for next episode!
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
maybe this will do for this episode: tinyurl.com/y4zjnhor
@alvarobyrne
@alvarobyrne 3 жыл бұрын
@@MoritzKlein0 thanks for this
@dfautomaton
@dfautomaton 3 жыл бұрын
Your 11th video. Consistently great. May your subs and patreons grow as rapidly as our knowledge.
@snowvalleyrat
@snowvalleyrat 2 жыл бұрын
Thanks to you, my dream of building a synth may come true now.
@wuukaa9079
@wuukaa9079 3 жыл бұрын
The way you share your knowledge is such pleasant! I hope you like making your videos cuz we do! Thank you
@garywallace1938
@garywallace1938 3 жыл бұрын
This series is brilliant, please please please keep it up. I've made the VCO on breadboard, just need to transfer it into stripboard. Then I will definitely be building this resonant filter!
@EMAHGERD
@EMAHGERD 3 жыл бұрын
Endlich mal ne schöne, professionelle und keine nervige Umsetzung von nem DIY-Synth-Kanal. Weiter so, ich glaube du hast da ne gute Lücke gefunden;-)
@pauloh.siqueira6230
@pauloh.siqueira6230 3 жыл бұрын
Perfect!!! This is one of the best audio electronic tutorials!! Bravo!
@BorisGrishenco
@BorisGrishenco 3 жыл бұрын
This is amazing tutorials on analog sound electronics. This reminds me to try finishing my DIY guitar pedal PCB schematic and launch it into production.
@kcbanner
@kcbanner 3 жыл бұрын
Thanks for the great visualization of resonance on the waveform, looking forward to more of your videos!
@omnaraiya
@omnaraiya 3 жыл бұрын
Another stupendous explanation. Looking forward to the next installment!
@forex922
@forex922 3 жыл бұрын
Appreciate all the time and effort put into making the videos. Good job.
@hellcoreproductions
@hellcoreproductions 3 жыл бұрын
This is great, made me dig into my component draw for the first time in a while!
@denniswaakopreijers115
@denniswaakopreijers115 Жыл бұрын
Great explanations @Moritz Klein! It makes me curious about building something myself!
@nickygrillet786
@nickygrillet786 Жыл бұрын
Hi! I come across your videos a bit late, but wanted to thank you for them! You explain things that looked super complicated in such an understandable way! And it's absolutely on the topic wanted to learn things! Thank you so so much for that!
@coreyfridinger8242
@coreyfridinger8242 3 жыл бұрын
Super as always! Looking forward to the next several episodes!!!
@loukashareangas4420
@loukashareangas4420 3 жыл бұрын
Hello and thanks for taking the time to explain these beautifully! Even for someone who knows their way around op-amps, this presentation style is still useful! Two additions if I may, I havent yet laid the circuit out on breadboard but from what I can see, I think that the stereo 100k pot should be of the logarithmic type and connected so that fully clockwise you get the lowest resistance. In that way you get a mostly linear sounding frequency response (our ear has a logarithmic response), with the highest Fc coming from the most clockwise pot position. Also adding a 680 Ohm resistor in series with each side of the potentiometer should limit the highest Fc to around 23kHz, maximising the usable range of the potentiometer's turn. These are just hunches at the moment, that I quickly scribbled on an excel sheet, I will test them out and report back. In any way, they are minor stuff and do not in any way take away from your tutorial!
@anothercouture
@anothercouture 3 жыл бұрын
Fantastic. I learned lots, really looking forward to leason 3.
@KNHSynths
@KNHSynths 3 жыл бұрын
Well explained, clear, demos and schematics are placed where they are the most needed, that's what I call a good video! thanks!
@LM18
@LM18 3 жыл бұрын
Wunderbar erklärt Herr Klein! Vielen Dank dafür!
@MDJ5
@MDJ5 3 жыл бұрын
Mr Klein you are a treasure.
@AndreaLombardo-mo1mu
@AndreaLombardo-mo1mu 19 күн бұрын
Your videos are exceptionally good!!!
@AndersWeijnitz
@AndersWeijnitz 3 жыл бұрын
Amazing explanation! Super clear breakdown of the different stages of the filter circuit! Thanks so much!
@martinmartinmartin2996
@martinmartinmartin2996 3 жыл бұрын
see 5:55 to 6:55 CORRECTION: the non-inverting amplifier GAIN is fixed at x1 The description of the output voltage increasing from 0 volts to +4volts reaching +4.99999 volts is a good way to describe the action of the non-inverting amplifier that happens very, VERY FAST.
@Nervenkugel
@Nervenkugel 3 жыл бұрын
The greatest series !
@g.d.8065
@g.d.8065 3 жыл бұрын
A simple way to explain how a voltage divider works can be like this: When you apply a voltage across a resistance, the voltage drops in a smooth gradient across the resistor. One way to reason about this is that the same amount of current is flowing across the whole resistor, but the resistance gets smaller as you get closer to the opposite end (because there's less physical distance between the given point and the other end of the resistor). Therefore, in order for the same amount of current to flow through the whole resistor, the voltage at each point in the resistor has to be proportional to the resistance from that point to the opposite end. A voltage divider splits this up into two (or more) resistors of fixed value. An example is if you have two resistors in series with the same value, the voltage across each of them will be half the total voltage, as the current across each of them is equal to the current across the whole thing, but each resistance is half the total resistance. The value of each resistor can be varied to give different ratios for the output voltage. (the following is some elaboration that can be left out) If you have the bottom resistor connected to ground, the output will be equal to the input voltage multiplied by the ratio between the grounded resistor and the total resistance of the divider (assuming you don't have any load on the output). As an equation, this is V * R2/(R1 + R2), where R2 is the grounded resistor, and R1 is the upper resistor. An example is if you have two resistors in series with the same value, the voltage across each of them will be half the total voltage, as the current across each of them is equal to the current across the whole thing. A potentiometer is a fixed resistor that you touch with a movable conductive contact to access the different points on the voltage gradient across the resistor.
@marcokalach
@marcokalach 3 жыл бұрын
Amazing. Thank you so much. I'm a dyier from hell and this video made a couple of things way clearer. Keep up the good work!
@kimmy_future4265
@kimmy_future4265 3 жыл бұрын
These videos are great! thank you so much for them! puts so many different things together and in the context that i need.
@pakhacks7507
@pakhacks7507 3 жыл бұрын
All problem clear from watch your videos. Thanks sir
@peterzimon
@peterzimon 3 жыл бұрын
Incredibly well explained!
@JDLesemajeste
@JDLesemajeste 3 жыл бұрын
This is a great series, keep up the good work!
@Mr_ToR
@Mr_ToR 3 жыл бұрын
Thank you so much for these videos. You are the Ben Eater of synths :-)
@pedromanzano5418
@pedromanzano5418 3 жыл бұрын
Your have the best didactics for electronics that I have ever found. Thank you.
@OMNI_INFINITY
@OMNI_INFINITY Жыл бұрын
*Thanks! There is a schematic for how that is at **23:34** before that korg mod? (Or a breadboard diagram or some way to replicate that?)*
@DuckTronic
@DuckTronic 3 жыл бұрын
Very very nice! Thank you Moritz!
@danielwalker5682
@danielwalker5682 3 жыл бұрын
Excellent. Beautifully clear.
@JapanoiseBreakfast
@JapanoiseBreakfast 3 жыл бұрын
I love this series!
@hadibq
@hadibq 9 ай бұрын
Sympa la qualité de réception . Même avec un peu plus de distortion je seraix content de ce montage. 👍 merci Bertrand 🙏
@kombizenon
@kombizenon 3 жыл бұрын
Your channel is pvre gold
@eliskwire
@eliskwire 3 жыл бұрын
You explain things very well!
@fruitpowerofeden-2022
@fruitpowerofeden-2022 3 жыл бұрын
beautifully explained. Thank you. More ideas to add to my synth project, while understanding what I'm doing and how it works. Thank you :)
@liamorourke9685
@liamorourke9685 3 жыл бұрын
Great tutorial... thanks
@urssounds
@urssounds Жыл бұрын
Brilliant channel! So helpful!
@oscarpastor4439
@oscarpastor4439 19 күн бұрын
Super master class. Thanks dude!!
@wsshambaugh
@wsshambaugh 3 жыл бұрын
This is really fantastic! I had to rewatch a few parts to get it, but the build up piece-by-piece is really wonderful for understanding why everything is designed the way it is, and how it works together. I feel like I’m definitely learning something new! One point though, it’s not really clear to me why you want to clip the resonance feedback path with the diodes, besides it sounding better. All the other steps seemed pretty well motivated, but this seems like something you get to via trial and error? Perhaps I just can’t visualize how it affects the output. A look at the o-scope at the end would be great!
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
totally agree, the clipping diodes are something i threw in as a kind of bonus. think i'll do a more in-depth explanation next episode .. or maybe in a spin-off quick tip.
@OMNI_INFINITY
@OMNI_INFINITY Жыл бұрын
Thanks! What ground reference input are those 2 voltage inputs are based off of though? @@MoritzKlein0
@martingerken7094
@martingerken7094 3 жыл бұрын
Super Erklärung, jetzt ergibt vieles was ich gelesen habe mehr Sinn. Bitte danach VCAs 😁
@AntonTHPS
@AntonTHPS 3 жыл бұрын
Such a good channel! Keep it up!
@timonlehmann5179
@timonlehmann5179 3 жыл бұрын
Thanks a lot! Can't wait the follow-up! :-)
@ewencousin
@ewencousin 3 жыл бұрын
So grateful!! Thx for sharing your knowledge!
@knuteri3
@knuteri3 3 жыл бұрын
Great explanation!
@cowpens6
@cowpens6 3 жыл бұрын
lovely op-amp lecture! I didn't even know what is the VCF though.
@segfault-berlin
@segfault-berlin 3 жыл бұрын
Great video as always, but you might want to discuss the roll of phase shift on the resonance. (Also understanding phase shift is pretty important for feedback too :) )
@Jan-dB
@Jan-dB 3 жыл бұрын
Very well done!
@danieldeatcu5986
@danieldeatcu5986 3 жыл бұрын
Your video is very inspirational besides of its knowledge sharing feature! Thanks!😃
@stuartchapman5171
@stuartchapman5171 3 жыл бұрын
I joined the party at VCF pt1, I don't use modular, but I do build and use FX units, along with passive matrix mixers. I really liked the explanation of AC coupling, simple as is everything else in this series. One issue I have when creating complex feedback loops with pedals on the matrix mixer, I occasionally get pot crackles which I'm lead to believe is DC getting into the circuit, it happens with some of my contact mic setups , other homemade kit and sometimes just with cheap guitar pedals. Will this fix it! I'm thinking adding a 1uf cap and 100k to each input and 1uf on each out put on the mixer and each of my homemade devices.
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
hmm not entirely sure. only thing i associate pot crackles with is oxidization. but adding ac coupling is never a bad idea!
@bigblastbeats
@bigblastbeats 3 жыл бұрын
Very good explanations you are a great person
@NicolasRomanokeyboarder
@NicolasRomanokeyboarder 3 жыл бұрын
your videos are great, i read somewhere if u substract a lowpassed waveform from the source waveform u get a hipass waveform, doing this is no problem to u i guess, keep doing videos man!!
@MrFelipeX300
@MrFelipeX300 3 жыл бұрын
Thanks a lot for this videos! mazing job and clear explanations
@cmcaudiobe
@cmcaudiobe 6 ай бұрын
Great job!!!
@RetroDepot
@RetroDepot 3 жыл бұрын
Nice series, I’m really liking it. Being a digital electronics guy by nature, it’s nice having a ‘refresher’ on analog theory. That said, I noticed that you haven’t really mentioned a lot about the types of POTs you’re using. I presume they’re all logarithmic?
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
no, they're all linear here! (which in this particular application, is not ideal - they should be log!)
@cj-er4xr
@cj-er4xr 3 жыл бұрын
great explanation as allways! thx
@yumnirusyaidi5109
@yumnirusyaidi5109 3 жыл бұрын
love it, thanks for making this such of video
@RetroPlus
@RetroPlus 3 жыл бұрын
This stuff is super exciting, I want to try and do my own wacky audio experiments
@sopalen
@sopalen 3 жыл бұрын
Only way i can think of to add CV is to use either OTA or 2164 VCA (or any vca). This should be interesting, nice work man.
@MoritzKlein0
@MoritzKlein0 3 жыл бұрын
i'll try and see how many different approaches i can find. OTAs are indeed the safest choice i think.
@stemmodular
@stemmodular 3 жыл бұрын
Love these videos! 🔥🙏
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