decided to get rid of the obnoxious breathing noises!

@@MoritzKlein0 ah, that makes a lot of sense

@@MoritzKlein0 Your videos are absolutely worth hearing someone breathe. You're a far cry from Darth Vader 😝 That said, I have noticed some of your videos have distinct breathing while wearing headphones. I would guess it's because your camera is very close to your face to get the kinds of "point of view" hand shots you do. The least annoying way to fix this is to get an external microphone if your camera supports it. Just a cheap dynamic lapel mic with a small foam wind filter will do a lot to cut out breath sounds, as it's far more directional than the "one size fits all" mics most cameras have built in. Most will record that mic directly with the video so you don't have to fuss with editing or try to sync up an external mic. Your videos have been so helpful for me, I hope this helps you!

@@MoritzKlein0 the amount of inhales and lips smacking that gets in the mic is ridiculous, never hear them in real life

@@MoritzKlein0 I hate it when people breathe ;) But seriously, great video. Is there a way we can make one-off donations on Patreon?

this should be higher up or even PINNED

hmm ☹️ like afroman

drawing all those tiny squares was actually really relaxing

I love the drawings. Somehow it means a lot to me that they are so pretty:)

@@larsenmb me too! they are great :))

utmost

That information is included in the video.

@@antegulin9050 now that you mention it, I found where he says that. and the tip about the red/blue line being an indicator if they are separated it's very usefull.

yeah, that one took a while

hey philipp, unfortunately not - at least nothing synth-specific. but i‘m currently planning to set up my own webshop where i want to sell exactly this kind of kit (breadboard, batteries, components, PCBs etc).

the capacitor/resistor combination is AC coupling the signal (centering the waveform around 0V). the oscillator in this video is producing an already-centered signal, so that isn't necessary. the voltage divider is just shrinking the voltage swing down. the oscillator will produce a signal that's very loud (going from -9 to +9 V). the 10k/1k voltage divider will quiet that down to +/-800mV (which is about consumer-grade line level)!

@@MoritzKlein0 Makes perfect sense! Also, I started going through your other videos and found you'd already explained that here: ukposts.info/have/v-deo/iXKSqKymb5h0wmg.html . Such good stuff, I'm so hyped to make some noise - thank you!

1. using neutral and ground to mean the same thing (or using the term neutral at all for that matter) is pretty unusual in this context. typically you'll hear the term neutral to refer to the return or negative pin on your wall socket (which eventually connects to "safety" ground in your breaker box). I don't believe he uses negative interchangeably here? 2. You have to understand that all voltages are relative. The 9v battery in isolation has a positive terminal and a negative terminal because that is the measure of energy a positive coloumb of charge must expend going from the negative to the positive terminal. Think of it like a flight of stairs. You expend the same amount of energy climbing a flight of stairs regardless of whether you start on ground floor or the 30th floor. We've already labeled the first batteries negative terminal ground, which is to say this is our 0v reference from which all other voltages are measured implicitly. So in our flight of stairs analogy, we've added the first battery and called its negative terminal "ground". In other words we've decided that the bottom of that flight of stairs is ground floor (regardless of whether it happens to be floating in air!). Now when we add the second batteries positive terminal to ground, it's like we've built a new lower flight of stairs below our arbitrarily chosen ground floor. We have a basement now. We connect the negative terminal of the second battery to the other rail labeled "negative" so that we can connect other circuit elements to it. Hope that helped.

it doesn't matter which side you put the resistor on - it will have the same effect either way. this is because the resistor is limiting the current ("amount" of electricity) flowing from the positive to the negative terminal. and for that, it doesn't matter where the bottleneck is! as for the difference between voltage and current, i'd recommend you check out the first episode in my DIY VCO series, since i explain exactly this in detail there!

In electronics there are components that considered as current or voltage (constant) devices.Leds are current devices and there is not fixed operating voltage nor current.So must check each led with a variable voltage source to check when it lights up in a normal level and then measure the applied voltage and the current that led draws.Size,scheme,colour,smd or not,each led type has it own characteristics.Resistor can be connected in any of the led pins.

In this case K is the tolerance rating of the capacitor (10%). 1K63 on this cap means 1uF (+/- 10%), 63V maximum.

ceramic are actually not a good choice for most audio stuff, since they introduce distortion. electrolytic ones are an even worse choice, because they are polarized and thus shouldn't be used with AC signals (which is what audio signals are!)

@@MoritzKlein0 thanks for the answer, btw great video as always

Ceramic capacitors are also "microphonic." That is, if subjected to pressure or force (like tapping), they will generate a small voltage. It's not usually a big deal electronically, but if the goal is high fidelity, random transient voltages in your analog output aren't helpful. That's part of the "distortion" Mr. Klein illustrated. (edited for clarity.)

true!

I think I need a bench power supply that has two positive and two negative output thingys?!? I guess, I have to go buy some batteries.

because the LED would burn up otherwise - there’d be too much current flowing through it. the resistor restricts the amount of current that will flow.

@@MoritzKlein0 - Can you use any size resistor or do you need a specific minimum value like the 1k used here?

really depends on where you live!

@@MoritzKlein0 I’m in the U.S

there are two types of charge carriers positive and negative. positive current is defined as the direction of flow of positive charge. in the wire, the charge carriers are negative (free electrons), and so the current is positive in the direction opposite their direction of travel. if you were to look inside the battery you'd see positive charge carriers (ions) moving in the same direction from positive to negative.