The tech behind my 29.97 fps video
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- เผยแพร่เมื่อ 27 ก.ย. 2024
- A patreon-exclusive behind-the-scenes look at the equipment I used to film my 29.97 fps video: • Why is TV 29.97 frames...
At the time of upload I have zero patreon supporters, so I've made this video available to view for anyone. I'll be making more content like this for people who support me here:
/ standupmaths
If you sign-up and get my secret email address, send me any questions you'd like me to answer in my first patreon Q+A video.
Lesser TH-cam presenters would have edited in fake CRT effects on top of a broken old monitor from the local Goodwill store.
You are above such peasantry.
But not above such pedantry.
HDMI to SCART
wow, when the decades collide
I have an HDMI to VGA, from when I used to do presentations, and a SCART to HDMI so I can plug my old Pioneer VHS/HDD/DVD box into my TV. I think that collides 90s, 00s and 10s!
Everybody support Matt on Patreon so he can afford to buy shoes.
P Hampton and socks
EDIT: I'm a year late but better late than never, night?
@@ThreeLetters3 I'm two years late :o
I'm genuinely impressed by the amount of effort you went to for the video. Respect for not taking the easy (easier?) way out and faking it in post production.
This is the same man who legitimately sat there to get 10 consecutive coin flips in one shot. I don't think he knows that there are easier ways to do things. But it's brilliant.
Oh crap, haven't seen you in ages, Genuienly surprised you are still on youtube :o
There wasnt a single doubt in my mind he greenscreened it until i saw this bts. I feel bad now 😅
Of course, a foot pedal. I was thinking someone else was off camera.
And now I have to get (or build) one for my next presentation.
+DFYX search for "boss key", they are usually sold as a way to hide your surfing habits with a fullscreen image of some spreadsheets or somesuch, in case your boss comes over and looks at your screen, hence why his pedal sends a B i would guess.
"Foot pedal" is sort of redundant because the first part of pedal (ped) refers to your foot.
TBH I thought he was very precisely hitting the space on his laptop keyboard.
If someone wants to build one, then you can make one with an Arduino Pro Micro (a clone can be bought here: goo.gl/2sVjFq ). You just have to modify the KeyboardMessage example so it prints a space (which has the added advantage of not having to use a program on the computer).
Pro tip:
I've had a lot of experience recording screens. Screens tend to be a lot brighter than their surrounding environment. If you can adjust the screen brightness, a much dimmer setting (that looks way too dark to the eye) will show really well on a camera (vivid colours etc) alongside, say, you stood next to it. If that's not possible, you usually need really strong lighting on the actor/presenter to match the crazy brightness a screen puts out.
Just a suggestion in case you do this again! Really awesome video! It's so, so satisfying to see the things you're talking about literally happening live on a real CRT!
5:44 "Quality wipe action"
3:32 "And we are off and racing" reminded me of your coin toss full video, you said that like a hundred times in it.
That interlacing effect was genius!
Great videos! I always thought the "missing" 0,03 frame was the cathode ray moving from bottom to top. One thing I noticed in this BTS video though, is that you refer to SCART as a signal. Actually "SCART" is the name of the plug itself. In Europe, we sent composite, s-vhs, or RGB signals through a cable with a SCART _plug_ in one or both ends. There were some late 100Hz TV's that actually could accept a US component signal via SCART as well, but that was proprietary, and outside the "standard". And I say "US" component to differentiate, because technically, an RGB signal is a component signal. But very different from the component signal used in the US...
A little late to the party but SCART isn't JUST some fancy implementation of RCA, it also has the ability to broadcast separate RGB signals for video which tends to mean you get more vivid and accurate colours, so better image quality. The other main benefit over LCD is actually because the pixels aren't necessarily a fixed size, so if you're running a low res input from an 8 bit or 16 bit console, the TV will happily scale the image up by making the pixels bigger, however on an LCD, the pixels are a fixed size which in some cases can lead to really bad aliasing of the image.
SCART is the standard for the connector and NOT the signal. SCART can carry composite, s-video or RGB signal. Just because it's SCART does not mean you are getting RGB signal. In the video he's using composite signal over SCART connector.
I'll have to make sure to save my CRT.
We still use CRT TV set. Works fine, no need for change :)
This is really interesting.
When I first watched the main video, I thought: "What's the easiest way to put a digital signal on a CRT? Probably a video on a Raspberry Pi"
But then the live video showed up on the CRT (with the effects), and then I thought that it might be all added in post, but the picture looked like real on CRT (with reflections etc).
If you had done the effects on a PC, there would be a bigger lag on the screen.
I was not expecting a digital live video mixer...
Nicely done Matt!
Quick note on Scart:
Scart can transport compoSITE signals, not compoNENT, component is for HD over 3 cinch.
Also when looking this up I found out that the name "SCART" is the abbreviation for French union of television manufacturers, not for some english word
SCART also support RGB and component. RGB was always part of the standard, component was sort of added later, in the late DVD and early HD era.
Matt, this is AWESOME! Your creativity to put this together on a shoe-string budget, you prove there are no excuses for not making good videos. GREAT job!!!
Ok maybe not shoe-string. I saw that mixer is $1,000 USD. Still though, GREAT work.
Great tech behind that, you are very smart and resourceful, bravo!
you would be surprised how big of a draw there is for CRTs. As a competitive gamer in America, it is funny to see my friends constantly looking for CRTs for tournaments and such lol
Melee?
yes lol
It doesn't surprise me. CRTs have superior input lag to LCDs, and traditionally better refresh rates (probably not as much now with the 120hz screens). Up until December last year, I was still even using a CRT as my main monitor. Luckily I'm not a huge gamer, as my new monitor is actually awful for that!
I legitimately thought you had somebody else filming you while another person advanced the slides.
The things you can do with a MacBook and a foot pedal.
"COLOR"? Matt, I am disappointed.
It was about American television, there's no room in the signal for an additional U
ZeroOverZeroIsOne I know. I'm sorry if I didn't make the joke clear, my sincere apologies. I figured that here it would be more obvious than elsewhere.
You clearly missed Zero's joke as well.
hivetyrant7 Thanks for pointing it out. Missed that.
You clearly missed Hive's joke as well.
4:04 Matt Parker toe reveal!
6:02 Matt Parker full foot reveal!
That was one of the best parts of the video, no doubt
Technically, CRTs have "less delay" in signal due to not having to process the video signal nearly as much, especially for composite signals, as it can simply be amplified and sent into the cathode of the picture tube in most cases.
I just found your channels and want to let you know how much you are enjoyed! Having worked in radio and television for the past 38 years here in the US, all I can say is thank god for digital. Thank you for your enthusiasm and keep up the good work you put in your videos.
To technicians, NTSC used to stand for 'Never Twice Same Colour', because of its tendency for colour mismatches not to cancel out on the alternate scans. With PAL, that error balancing capability would tend to make the eye see the correct colour if anything was amiss with the signal, because persistence of vision and the brain's amazing ability to average out colour errors if alternate, but complementary, incorrect colours are presented.
You've made an old-school video nerd very happy with this video. Thanks!
It's quite good for "retro video games." In other words, Melee.
Phantasy Star Online*
Final Fantasy Crystal Chronicles*
pretty much anything on the Gamecube*
😀👍👍
I don't think you can call the GameCube retro yet.
The SNES was considered retro when the Gamecube came out, and the SNES was 10 years old at the time, the NES was 16 etc. The Gamecube is now 15 years old. In my book, it's pretty much retro now.
What is more shocking is that the Wii is now 10 years old, the PS3 is 9 and the 360 is 11. It can be argued that these are not retro as they still get new games released onto them, new updates, can still be fixed properly etc. Unusual for consoles as they usually have a 5-6 year lifespan at most.
Brian Weston ?
It's good for all games, if input lag is an issue. Because CRTs are not digital, there is no delay caused by digital processing. The instant you push an a button, the screen will display it without delay. This is true for all video games, retro or brand new and is independent of the cable (HDMI, composite, component etc). People usually refer to CRTs being useful for retro games because the older games were usually much stricter on timing.
What I learned from this is that a company somewhere actually makes a HDMI-to-SCART converter. Amazing!
you looked a little lonely in this video.... you're awesome Matt! watching your videos before uni has made me feel less intimidated by my lecturers. just starting my second week :) 💛
I love this kind of videos! And now that you've got patreon I expect more of these :p
As someone who used to adjust NTSC signals for broadcast television, it was really good to see this presented on an authentic CRT. Very awesome! Thanks for the historical background on NTSC & PAL. I also enjoyed the bit on the video mixer. It's been a long time since I've worked with those.
Bloody brilliant! A rather basic 'studio', which you have made look VERY professional with your video mixer and Mac! Congrats and plaudits!
I didn't understand any of this! I just love watching Matt fool around with his technology. Don't ever stop being you :D
Loved the frames video but this behinds the scenes vid is actually nuts thanks for this.
I don't have money to give you. Do you accept a pizza or a picture of τ burning due to the supremacy of π?
Kludged together like a champ, Matt!
Broadcast engi here, great job on this. Absolutely love it. Showed this and the fps vid to my interns and are both great for helping them understand. You're great.
The scan line demonstration was a great way to clearly show people how the scanlines work. Very well displayed and explained. I hope other teachers can learn from this example for clear and exact demonstration over obscure personifications and metaphors. You're a great contributor to the learning and engineering community. : )
I find the animation of the scanning lines very clear and demonstrative. In fact the whole video is great. Very clarifying. Well done and tyu!
I love the amount of creative tech that goes into making your videos! I enjoy the way you explain everything, and that you go into detail. Maybe I can make better videos if I learn enough, or come up with my own way of doing things like you did. Liked and subscribed from the land of 29.97fps NTSC. Murica! That's why 29.97!
That was actually a brilliant setup. And yes, during your regular video I was wondering about some of that and figured you had a foot control of some sort. Kudos to you! Brilliant orchestration and great explanation!
I am amazed how you managed to make such a polished video with such outside of the box solutions. I expected like a team of three people working magic behind the screens. Also it shows an inspiring amount of passion you have for what you do :)
I participate in competitive Super Smash Bros Melee tournaments for the Nintendo Gamecube and, because the Gamecube was made in 2001 with only an analog video output, we use these CRTs religiously. The reason for that is that the process behind upscaling analog video to digital has a slight delay behind it that throws off the frame-perfect commands we need to execute. I know many people who carry one in the back of their car at all times, just in case a spontaneous match occurs and I personally have 3 large CRTs in my house for training purposes.
Having delved into speedrunning older retro games, seeing that you not only had a proper CRT but one that also has SCART input makes me completely jealous. It took me 2 years to find one here...
The audio feed back is whole new video idea, it's actually quite interesting why it does that
You sir, are a tech MAVERICK!!! You take this crazy variety of hardware and software and BEND IT TO YOUR WILL, making average TH-camrs like myself watch and wonder "How the HELL did he do that???"
This is genuinely really cool. I did wonder how you made that video so thanks for this!
It is a good thing you found one within driving distance, that you could pick up. I would imagine it would cost quite a bit to have a CRT packed up and shipped.
That was a lot of dedication but the end result made it all worth it!
Just one question: Why did you not include a neat optical recursion fractal in this? Maybe as cute end bit?
(You know, where you point the camera at the screen but at an angle or with a slight transform, so the feedback loop creates all kinds of neat effects)
You were literally my Mathematical hero, and then this... Confirmed it!
That makes me the first patron, I guess. Can't wait for my photo of you looking disappointed at me :D
I guess what makes my pledge just that extra bit more irrational is that I almost exclusively watch the behind-the-scenes videos, and have only looked at a few of the ones on the main channel. I'm all for spending a few hours of my day watching you flip a coin but am not so interested in a highly edited video about the total number of youtube videos possible.
So there, your first patron doesn't even watch most of your videos ;D
(Though, the ones on this channel I watch eagerly).
***** I do! I've set it as a background both for my desktop and my laptop to ensure maximum disappointment.
I'm very disappointed with you. 2π ≥ τ (I had to go to emojis and symbols for this one)
you always come up with the most creative ways to give visuals in your videos
Loved the main video; a much better explanation than the last one I heard which was " for complicated technical reasons that you don't need to understand".
I used to have the exact same TV; inherited it from an ancient Great Auntie! I end up giving it away to local guy I came across on Reddit who was looking for CRT TVs to use for his retro gaming group.
A truly brilliant explanation of the NTSC frame rate with superb presentational style and animation. Excellent work. By the way, some of those horizontal lines were not for picture. They carried data for synchronisation and text.
Very satisfying level of ridiculousness, thank you for this.
Brilliant, simply brilliant.
Oldskool vision mixer tricks! nice.
Yes, apparently CRTs are great for speed running retro games.
This was very interesting. I like the little switcher with T-handle. I have no need but still would love to have such a setup. Good job.
Just a heads up for north america, and rca video cable is called a "composite" cable when it simply transmits sd video, it is called "component" when it transmits hd (via 3 video cables instead of the one)
Great! Aswome how mutch smart idears and tools are in this Video!
Woah. I had assumed you were running the effect on software, had someone behind the camera switching slides on cue, and had to do some serious tweaking on the camera to get the screen to show without banding...
Wow... your recording area is... surprising for such a quality video...
Hi Matt. Thank you for this excellent video! I loved the behind the scenes! :-D Keep it up. :)
"Apparently it is very good for retro video games." Hey Matt, did you know that pro Super Smash Bros Melee players use these kinds of tvs? It has milliseconds less lag time from the machine (because they are what the GameCube is built for), but that all matters because these players input tens of inputs per second.
Excellent video - thanks for this! I always love seeing how people produce their content.
That Roland switcher is an amazing piece of kit for the price. Some other way cool software that can perform amazing effects is Pro Video Player (or after Version 3 ships, just PVP) by Renewed Vision. If you search on TH-cam for “NAB Vender: Renewed Vision” you can see the upcoming version 3 and some of the goodies they have planned.
I’d love to see the creative effects you could do with something like PVP - the keynote/lumikey effect was prety genius!
3:14 - SCART is effectively not just RCA, it can do S-Video and even RGB - maybe your converter box was even outputting RGB (as it has a SCART connector)?
We did those effects in the '80's and '90's with a device called a Genlock, used on Amiga computers. Quality has gone up, but the principles are still the same. Look into the VideoToaster for more info.
Really cool video! I was going mad trying to figure out how you did all that, thank you!
I still have an old TV like the one you're using. It works perfectly well. The only problem is that it only works with Scart and to get a HDMI to Scart adapter costs almost as much as a new TV, so I got a new TV. But the old TV is amazing for everything that can connect to it such as gaming systems and dvd and video players.
great job man! respect for your inventiveness!
This is a really neat look! Thank you for sharing!
Thank you so much for making this! I'd wondered how you made it look so good and I really enjoyed the information! Thank you!
I refuse to believe matt doesn't film in the void
Great explanation sir! What i'm missing is why some editors making difference between 29.97 and 29.976 FPS. Also i'm missing black in your video. Yes, that painfull YUV to RGB for TV (16 - 235) and on PC (0-255). My YT videos are gray too, some of them. I hate it. Can you do a final ultimate video about it?
Thats beautiful. He's like iron man making a balistic suit out of air conditioners and duct tape
dude, you're an genius!
Matt, that's a good CRT you have there, mainly because it's a Trinitron (with stereo audio I guess). Excellent for anything pre-PSOne, stretch after in time and you'll need a bigger one, like my 21" 4:3 Sony-branded monster huehue
It's good for modern video games too! CRTs have 0 input lag, apart from the time it takes the electrons to move through the circuits. Image processing on newer TVs can add anywhere from a couple, to a dozen frames of input lag. A real deal-breaker in fighting games. For super-fast gameplay, it's either a cheap CRT, or an extremely expensive LCD screen to get *nearly* the same low latency as a CRT.
I'm pissed. He bought the same TV my mum threw away which I had all my life.
rip
"Star Wipe"
I feel stupid every time I watch your videos.
Awesome video man!
i recently bought a crt because it's really good for gaming- i have two for melee, and use both of them daily for literally solely melee.
I would have just imposed an image on the screen in post. This is way cooler.
I'd wondered what was connected up to it. I've got an RF modulator so I can connect all manner of stuff to old sets that just have an aerial socket. Really nice old TV too. Yes, perfect for retro gaming.
Good job Matt!!
I've the same TV, but in black. It is indeed decent for retro gaming!
we are hungry for content. I'm speaking for the whole Internet here
cool gear you got there!
I like asking this to mathematicians because it bothers them since it it not strictly maths. However, Matt, what is the smallest positive integer that has never been used.
This question is something of a paradox. As soon as an integer is used to answer this, it no longer an integer which isn't used for anything.
Yeah I realized that but if you say any number never used before, but not including the number itself I think it is actually more of an interesting question.
I suppose the larger question is "what do you define as a number being used". Should numbers used in named sequences be included? Lots of things to consider
any number calculated by a computer or person etc
No one can know that because no one knows all the calculations everyone else in the history of the planet has done
That was fascinating.
I don't know why I was actually shocked when you moved the camera and you in fact were not filming in a black void.
You make it all look so easy. :)
I thought it way all post production editing shenanigans.
"Composite", not "Component" (RCA... )
Hey, Matt, I'm not sure if you're aware of this but you didn't make this video unlisted. Until I;'m sure you meant to release it publically I will not watch if I cannot pledge :)
I saw you tracing even and odd lines with chroma key and immediately was like, " WOW OMGNESS THAT IS GREAT :O"
Could you do a mini-sode on how much bandwidth for pixels is in each of those lines?
also if you could show the maths behind how it differentiates R G and B from the RF signal, there would be no other person I'd want to learn from!
Just when I was expecting to see a panasonic WJ-AVE5 or WJ-MX50.
BAM!
A Roland V1HD.
Anyway, off to buy a foot pedal.
What's ridiculous is that LCD TVs have a composite video input but it takes the composite analogue video that was designed for analogue TV and converts it to digital. There must be some loss of quality.
Cool setup!! Expensive! :-)
No need to order anything, to find a CRT TV within 20 miles of your house just drive in forest roads field roads ditches and check culverts and bushes.
1:13 you lucky brit bastard. lol.