DIY SYNTH VCF Part 2: Active Filters & Resonance
Ғылым және технология
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In this series, I'm taking a detailed look at how to build an analog VCF from scratch. We're picking up the pace somewhat in this episode, since the topic is quite complex. If you need refreshers on certain concepts, here's a list of links:
Negative voltages, diodes & power supply: • DIY SYNTH PSU: How to ...
Voltage dividers: • DIY VCO Part 1: The an...
AC coupling: • DIY VCO Part 1: The an...
If you want to follow along - which I strongly recommend -, here's a bill of materials:
1x TL074 quad op amp
1x 100k linear stereo potentiometer (if you can find one, use a 500k - gives you much more range)
1x 100k linear mono potentiometer
2x 200k resistor
1x 100k resistor
1x 33k resistor
1x 10k resistor
1x 6k8 resistor
2x 1uF foil/ceramic capacitor
2x 10nF foil/ceramic capacitor
6x 14148 diode
Chapters:
00:00 Intro
02:28 Amplification & op amps
08:19 What is resonance?
11:25 Resonant filter analysis & build
15:43 Feedback control
20:37 Volume balance & distortion
24:05 Clipped feedback
25:55 Sound demo & outro
Пікірлер: 280
Electrical Engineer here, I wish you existed back when I went to school lol. Great job.
@iamsushi1056
3 жыл бұрын
I'm learning more from this than my entire college course.
@xasdrubalex
3 жыл бұрын
cs engineer here, with a lot of EE courses, ffs this is the best content ever
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
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.
You make very good tutorials.
@MoritzKlein0
3 жыл бұрын
right back at ya!
@lilliampumpernickel9916
3 жыл бұрын
MAKE MORE VIDEOS!!
@wesleymays1931
3 жыл бұрын
Where have you been the last three years?
@jimmysyar889
3 жыл бұрын
Hey!! One more to the list.
@vijayramachandran2943
3 жыл бұрын
@afrotechmods Why you not making any videos
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.
Never have i waited for a sequel this much before... Enlightened as usual.... Now impatient for part 3. Just brilliant.
@UPCOWEBINARS
3 жыл бұрын
me too,!!!
@jcowe9194
3 жыл бұрын
me too, this is the synth electronics I've always wanted!
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
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
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
3 жыл бұрын
@@MoritzKlein0 life blesses you Moritz!
Ich habe dieses und mehrere andere Videos gefunden, die Sie durch Glück erstellt haben, während ich auf KZread 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!
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!
Another fabulous tutorial, I am SO pumped for Part 3 :D
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.
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 !
This is hands down one of my favorite electronic design series. Great work wish I had this starting out.
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
i was hanging on every word, not wanting this video to end. This is SO helpful!
Another stupendous explanation. Looking forward to the next installment!
Thanks for the great visualization of resonance on the waveform, looking forward to more of your videos!
Appreciate all the time and effort put into making the videos. Good job.
Amazing explanation! Super clear breakdown of the different stages of the filter circuit! Thanks so much!
Super as always! Looking forward to the next several episodes!!!
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!
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!!
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.
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.
This is great, made me dig into my component draw for the first time in a while!
Fantastic. I learned lots, really looking forward to leason 3.
These videos are great! thank you so much for them! puts so many different things together and in the context that i need.
Great explanations @Moritz Klein! It makes me curious about building something myself!
This is so good. Thank you for sharing your knowledge in such a clear fashion!
This is a great series, keep up the good work!
Well explained, clear, demos and schematics are placed where they are the most needed, that's what I call a good video! thanks!
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!
That sequence at the end sounds amazing!!!
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!
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!
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.
Perfect!!! This is one of the best audio electronic tutorials!! Bravo!
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!
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.
The way you share your knowledge is such pleasant! I hope you like making your videos cuz we do! Thank you
This video has brilliance all the way up.
Some of the best content of its kind on KZread.
Wunderbar erklärt Herr Klein! Vielen Dank dafür!
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!
Brilliant channel! So helpful!
This is the informative and quality content I search for, I immediately subscribed!!!!🤪
Your 11th video. Consistently great. May your subs and patreons grow as rapidly as our knowledge.
I want to like this video TWICE! It's the second video from Herr Klein I watch! Monster clear information! KZread should bring back the ***** five star ratings for videos instead of a simple thumb up or down!
beautifully explained. Thank you. More ideas to add to my synth project, while understanding what I'm doing and how it works. Thank you :)
I'd love if you included the "end"-schematic at the end of the video
@MoritzKlein0
3 жыл бұрын
noted for next episode!
@MoritzKlein0
3 жыл бұрын
maybe this will do for this episode: tinyurl.com/y4zjnhor
@alvarobyrne
3 жыл бұрын
@@MoritzKlein0 thanks for this
Now I get it why it's called resonance. These videos are awesome, thank you
I love this series!
Incredibly well explained!
That was so cool. Thanks man.
You explain things very well!
Excellent. Beautifully clear.
You have awesome knowledge. Keep it up...
YOU ARE GOD OF ELECTRONICS! Your videos are exactly what I was looking for. Thanks a lot!!!
All problem clear from watch your videos. Thanks sir
Such a good channel! Keep it up!
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
3 жыл бұрын
everyone loves looking at tit!
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
3 жыл бұрын
thanks, much appreciated!
Very very nice! Thank you Moritz!
Thanks to you, my dream of building a synth may come true now.
Your have the best didactics for electronics that I have ever found. Thank you.
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;-)
So grateful!! Thx for sharing your knowledge!
Your video is very inspirational besides of its knowledge sharing feature! Thanks!😃
Man, this series is great, please make another hundred videos like this one. I am a casper electronics orphan.
@MoritzKlein0
3 жыл бұрын
will do!
The greatest series !
great explanation as allways! thx
love it, thanks for making this such of video
Very well done!
Thanks a lot! Can't wait the follow-up! :-)
Great job!!!
Wonderful tutorial!
Thanks a lot for this videos! mazing job and clear explanations
The best OP-AMP Tutorial on KZread, Outstanding work Maritz!
Mr Klein you are a treasure.
Great explanation!
Thank you so much for these videos. You are the Ben Eater of synths :-)
Love these videos! 🔥🙏
very helpful, thank you!!!
Great tutorial... thanks
thank you!!!! Great explanations x
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!
Very good explanations you are a great person
Sympa la qualité de réception . Même avec un peu plus de distortion je seraix content de ce montage. 👍 merci Bertrand 🙏
really great stuff! I want to PCB this.
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!
wow amazing channel! thank you very much!
You have great diagrams for explanation
Your channel is pvre gold
lovely op-amp lecture! I didn't even know what is the VCF though.
Beautiful
great videos! thank you and good Epiphany
@MoritzKlein0
3 жыл бұрын
good epiphany to you too
Super Erklärung, jetzt ergibt vieles was ich gelesen habe mehr Sinn. Bitte danach VCAs 😁
This stuff is super exciting, I want to try and do my own wacky audio experiments
Thank you upload
Amazing thank you
Good videos