Passive RC low pass filter tutorial!
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- เผยแพร่เมื่อ 23 ธ.ค. 2010
- A tutorial on passive low pass RC filter circuits, and how they affect the frequency content of signals. An example of an RC filter that could go before a subwoofer's amplifier is given. The sound clips are from Pendulum's Slam in Hold Your Colour. More videos at www.afrotechmods.com
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I don't know why I pay tuition fees when guys like you teach me more in ten minutes than I learn in a whole lecture. Thank you!
I came for the electronics, stayed for the Pendulum.
*Sits here frustrated studying for exams.
*Hears Pendulum - Slam
*Instantly becomes focused
Relatable
It's 2024 and this video is still the best one explaining the topic ! PLEASE restart posting videos, community needs such high quality material.
1.Very good explanation. 2. We can apply the knowledge as we want to. 3. In-depth and very clear explanation. Excellent.
Ya know, I'm a college physics student and i swear (not downing my professors they are great and I probably wouldn't have been able to pick up this stuff so well if it wasn't for them) that I have learned more from you than in my now 4th year of physics classes. You've helped with numerous of my "just for fun" projects. Thanks! And keep up the epic work.
I spent freaking two quarters to find out what the hell the different filters do and learned nothing form the class. but this video explained me what I need to know. Thank you so much Sir Afrotechmods. Keep up the good work!!!!
Just wanted to say that your electronics videos are the most helpful I've seen anywhere! Thanks a lot for them, and please keep them coming!
On behalf of everyone who sees your videos, a big mega thanks to you, from all of us.
You put it all together for us, and make the impossible to learn, possible to learn.
If you had to learn this from some tenured professor in the fake education system we call universities, it would be impossible to learn anywhere near as much.
Your videos all have great production values, and you have an excellent voice on top of that.
Your videos inspire all of us to keep learning, and you make it easy.
Wow! I ain't seen winamp since the 2000s and I ain't heard Pendulum in almost that long too. Kudos bro, kudos!
that was one of the most satisfying video tutorial ever....everything you said were on point and the use of practical approach instead of using equation stuffs just make this video so easy to understand. A big thanks and hug to you for creating such helpful video.
Man, your videos are QUALITY! Honestly, from all my experience from universities, books and other tutorials, your videos make the BEST intuitive sense. Excellent content, you can communicate the content in an EXCELLENT manner and very funny too! And most importantly, the mix of theory and practical stuff. Amazing channel, will await for more!!!
Yes surely good...
OMG WINAMP! The memories...
BEST MOST SIMPLE "EXPLANATION" OF CROSSOVERS AND CROSSOVER "CAPACITORS" OUT THERE !
It is amazing that no one else can just explain this so simply ???
Most every question answered !
GOOD JOB !
Rick - Southern California
Very informative! I study electronics and I am finally beginning to understand this subject. And this video and explaination makes it way more clear to me.
+1 for the Winamp
Most practical & efficient presentation of the subject. Provides conceptual background to dive into more mathematical treatment.
Wow... another awesome tutorial... I've learned so much from watching these vids... It makes it so easy to understand the concept.
Thank you. Thank you. Thank you. I was struggling with the damn thing for days! You've explained it so elegantly in such a short amount of time! Awesome!
Can you help me please i am playing 8ohm su woofer 400watts rms i want it to play 40hz down?IM CONFUSED what capcitor to use.
Daniella Henry
I'm not sure i understand what do you want to do, but i presume you want to filter out audio frequencies above 40Hz? I don't really work with audio but from what i understand you need to find out what the electrical parameters of the amplifier input are, as well as the signal source ones, and choose an appropriate resistor, so that your signal will transmit properly. When you know what resistor to put, choose a capacitor with c = 1 / (2*Pi*R*fc). My guess is that a 1k resistor might be enough. Then you'd need about a 4uF capacitor. Filtering is done on the pre-amp side i believe, not after. But like i've said...i'm no expert at this. For a professional solution you'd have to consult a professional.
I really appreciate your effort for making such useful videos.
Amazing video! you explain it so well and you even made this boring topic super interesting!
Thanks a million
+1 For Pendulum
Thank you verymuch for this video! Explains everything in a clear, easy to understand way. THANK YOU!
I'm doing these in Electronics at the moment. I already knew the basics, but thanks for the rest - keep the great videos up.
Wow, I just say wow when I've leanred something new even years are gradualting engineering.
That classic winamp ive been using for many many years and that put a smile on my face.
The fact you played pendulum is an insta-thumbs up
writing my dissertation at the minute thank you! great help and great channel
Excellent as always, and always so practical!
Afro, you gotta be my teacher, man. Awesome video as usual.
BANGING explanation of RC low pass filters .......!!! Love it !!!
This is the explanation that I was looking for.. I wanted to filter out mobile incoming call frequency from my audio amplifier.. And this tutorial got me to it.
Best videos about on electronics on youtube
aaaahh, takes me back to highschool... Thanks for these vids man!!
Really useful and the practical demonstrations were helpful, thanks.
Great as always! I've been waiting for you to make a filter video. Thanks!
This was great, thank you. I used a RC filter to reduce noise on the 3.3v rail of my raspberry pi. It dropped the ripple from 25mv to less than 1mv.
wasn't expecting pendulum when doing my circuits hw! haha thanks brother
Best example song for sure i love Pendulum
Super awesome video.. full of knowledge and way too different from bookish way of describing RC's. Thank you.
Really helped me understand, I'm with seth, I've been at Access to Music college for 3 years and i've learned more in this video then i have in all 3 years at college :L Really good, thanks alot man :)
i learned more from this mans vids than i ever have in electronic classes.
Your videos are the best! Thank you
Helpful, instructive video, thanks for making!
sir yr video on RC LOW PASS FILTERS TUTORIAL
An excellent video of the BEST quality that i have come across in my life. I can never forget this video because of its outstanding features like CRT viewing, hearing music variation at different frquencies, Practical demonstration of components and calculation, ideal graphs and Practical one, such a clear explanation of theory, what to say and what not to say. Very well made video.
thank u so MUCH
s.vatsa India
Great video, I was not able to understand this whole topic, but after watching your video. :D
afro tech mods sharing quality music, Im gonna add it to my playlist
BEST... TUTORIAL... EVER. And great song choice!
Brilliant tutorial. Every other one I've seen or read just uses random resistor values. Your's is the only one that states WHY you're using those values. Sub'd
this video deserves double like
You deserve a medal
Good vids, keep it coming. I learn a lot from your vids.
Thumbs up because of 6:19 and because this is actually a good explaination
Thanks
Excellent tutorial, keep up the good work.
Thanks for your videos where people founds many useful informations :)
Best. Anonymous. Video. Ever! You guys really do help the world
Thanks for saving my life from high frequencies!!!!! Great vid
you are awsome , make things so clear best Kurt
very nice example of low n high pass filter.. with a win amp :)
Very clear. Thank you. On to high pass and LC.
very good tutorial, i learned so much
Thank you, your videos are very helpful.
What I used for a treble roll off filter was a 0.01 mfd capacitor in series with a 500,000 ohm potentiometer across the transformer out of the headphone jack of my hp XP windows desk bound computer. I got the parts from an industrial electronics store bin.
I used that as an auxiliary control. That fed an amplifier, which fed a parametric equalizer. It was just a whole lot easier to take my hand and turn the highs up or down, rather than fiddle around and go into the computers dedicated audio equalizer, which was optimally set.
It works great. When the highs go down, the bass goes up a little. I'm mainly concerned about speech intelligibility in movies that I watch.
I mounted the little RC circuit in a small plastic box. I like it because IT'S HANDS ON! I don't have to go through the keyboard commands.
Maximum points for using classic winamp. :D
Thanks for the videos Afro, you rock.
simple and straight to the point. thanks
Thank you so much!!! Explained beautifully
W0000000000H000 thats what i was looking for (2 weeks) :D
Atleast, now i know how, love the videos, liked and subscribed .
This was so helpful. Thank you
excellent tutorial.
Awesome Video!
I LOLed at the soft low pass and high pass xD
Your vids are awesome!
Keep it up.
Brilliant vid. Cracked up at 6.23
Great tutorial 👌
Awesome video sir
excellent video about filters... thanks dude
This is amazingly explained! I have to write a paper about an experiment about high pass and low pass filters that I was supposed to do at university but this whole situation has put that on the hold but not the paper I have to write ahaha thankfully there's resources such as this where I can actually see what I would be doing! Thanks!!
Hey buddy...do you maybe have that paper written and would you be willing to share it, as i have to do the same thing too hahaha
@@aljazmarolt This was a long time ago but I'll look over my stuff and see if I find something ;)
@@aljazmarolt I can't seem to find anything :/ And if I did it would probably be written in portuguese (my mother language). I do have some python code using high and low pass filters for optics applications though
thanks, your videos are really helpful.
This is so in depth and easy to understand! Thank you so much for this knowledge!
thks man for this video..i found it in none of my books
keep up the great work
Thanks for this grade tutorial!
Nice. I had both an original and an unorignal power supply (9V output) for a guitar pedal (distortion pedal), but the unoriginal power supply made this guitar pedal generate a high pitch noise which wasn't there with the original power supply. For fun I used a 120 ohm resistor with a 10 uf capacitor and then connected the pedal to the filtered 9V - lo and behold - all the high frequency noise vanished.
I'm still sticking to the original power supply, but this sure was an interesting experiment 😃
Keep going your contest is really nice 🔛🔝
good and simple explanation
Really good explanation!
BEST TUTORIAL EVA!
I love how the guy sounds pro as fuck but also have a badass playlist
Great clip, thanks.
one question , according to your experience, how do you usually decide the cut off frequency to a equipment ?
I am using PLC at the moment, I am recommended to use RC filter to deal with noise problems to the input of the PLC,but I have no clue how to decide cut off frequency
You're the best! Thanks for sharing!!
Hi, I made a subwoofer and I turn it right up because I think people like it, but it rattles the rusty doors off my '87 Buick, any suggestions?
Chuck Norris Dynamat that rust bucket
Is that anything like Dynamite?
Has onyone actually noticed it's basicaly a response to one older comment?
AAAAHHHH PENDULUM!! rock it, afro
thank you so much.. Deep down from my Heart... AWESOME
you're the best, sir
Finally somebody tell me the benefits of the filter.
What makes the music cooler is the fact that you understand and can see what's going on.
Study.. study.. study..
Haha same here, this is way more informative than my electronics class! xD haha Thanks!
Are you well? I don't see any new videos from last 5 years. Your videos are really awesome.
wow this is an excellent primer on filters
it would be awesome if you had a follow up video on
how to make sharper filters
what is the importance of the phase shifting/frequency in a filter
and maybe the filtering effects of parasitic capacitance/inductance in a circuit ?
oh and maybe something about resonant and active filters ?
btw all that material is already explained in the open source ebook called
"Lesson in electric circuits" at ibiblio
it's a great source for producing these vids
Thanks a lot a man for explaining this thing to me.
Very nice video