Train, where I'm going to show you the recording studio where

I make all of the tutorial videos and livestreams.

So I'm at the Kanbar Institute of Film and TV

at NYU Tisch School of the Arts.

Behind this door is a small closet

where I've recorded many video tutorials.

Other people have made tutorials and things from this room.

And actually, we're going to be moving to a new studio

later this summer, so I wanted to make

sure to document this in case you want to make your own video

tutorials.

Hopefully, there'll be some nice tidbits of information for you.

All right, I'm going to open this door

and I'm going to go inside.

Come on.

And I have now entered the studio space.

I am walking over to the desk where I record everything,

and I'm seeing you because I'm recording from here.

There's a camera here recording.

Those are the only two things that are recording right now.

So I'm actually also currently streaming this to YouTube.

It's not publicly livestreamed right now.

Members and patrons are watching.

And so what I'm going to do is talk through

all of the different pieces of what

I use when I'm livestreaming, and then we'll

show you from different perspectives

so you can see how everything works.

So the first thing that I want to show you

is this computer over here.

So, this is actually the streaming computer.

It's not the streaming computer.

It's the monitor attached to the streaming computer.

And it's running Open Broadcast Studio,

which is what I'm using to send the audio and video data.

And it has also got a little window of a YouTube chat

going here that I can see.

And so the most important thing to do if you want to stream

to YouTube-- which, you can use Open Broadcast Studio to stream

to a number of other things--

is to connect YouTube with Open Broadcast Studio.

And the way you do that is through the livestreaming

dashboard.

So this is the dashboard.

It shows a little preview of what I'm streaming.

It shows how many people are viewing

at a given time, the average watch time, play times,

the chat rate.

I have already connected Open Broadcast Studio and YouTube

because I'm broadcasting this and recording it to disk.

But I'm going to show you how to do that.

So under the stream settings, there's

a particular property called Ingestion.

And you can see here there's a stream URL, a backup server

URL.

These are all already put into the streaming software,

Open Broadcast Studio.

But there is also this stream name/key.

So if I were to copy this and then

change into Open Broadcast Studio under Settings,

under Stream, this is where I want to paste that key.

Now, this is grayed out right now because I'm already

streaming, but that's how YouTube--

my event on YouTube, my livestreaming

event on YouTube-- is connected to Open

Broadcast Studio itself.

So there's a lot of other settings here under Output.

I can change the Recording, the Audio settings,

all sorts of things.

But you can see right here under these buttons, I am streaming,

and I am recording.

So now that we see how Open Broadcast Studio and YouTube

are connected, let's look at how is Open Broadcast

Studio getting the camera image, my laptop image, combining it,

all that sort of stuff.

So everything starts with this computer over here

on the floor.

Probably, it would be better to put

this on a shelf or something, but what are you going to do?

So, this is a Canon Mark III 5D.

It's plugged into power, so it's not running off of battery.

It has HDMI OUT.

That HDMI OUT is going through a Black Magic

box, which basically takes HDMI IN, Thunderbolt OUT,

and converts it to a capture device.

So it then goes into this computer

and it's being captured.

The laptop, through USB-C, is also

connected to HDMI, which also goes into a Black Magic box

and into the computer.

In Open Broadcast Studio, I can then create a scene.

And so let's make a new one.

I'm gonna make a new scene called "test."

That's a great name.

[AUDIO OUT]

All right, now I've added the mic.

You can actually hear me.

But the screen is black.

So now I added the mic input.

So this scene now has audio.

Then what I'm going to add is--

let's add another source.

And because those go through those Black Magic boxes,

I can add a Black Magic device.

I can add an existing one like green canon.

And there it is.

It's actually already got the chroma keying filter,

but let me just turn that off.

I'm going to hide that.

So now you can see this is the actual camera view.

You can see this secondary laptop

that I have with green paper on it.

I'm going to just shrink this so you could see.

I could rotate it, I could flip it, I could do color,

I could do all sorts of stuff to it.

There's lots of features of Open Broadcast Studio.

But let me add another source.

I'm going to go Blackmagic Device,

and I'm going to add laptop.

Now you can see, the laptop is the feed from here,

but it's covering it.

So what I want to do is move green canon above it.

So now you can see the green canon is above it.

But let me put the chroma keying back in.

So I'm going to click on that, Filters add Chroma Key.

We could just see-- and by the way,

there's lots of other filters here that you could try.

I'm going to hit Close.

I'm going to put this down, and there we go.

And I'm going to put myself over to the side.

So this is basically the configuration

I use for The Coding Train when I'm live broadcasting.

So I'm here.

I can turn here.

I can sort of see.

So if I pull up some code, if I pull up, like, the p5 web

editor, I can see it over here as I stand this way.

So it's like I'm telling you what the weather is

in the p5 web editor.

So I look over here at the camera,

I type over here on the computer,

then I go and I sort of see a monitor of the composite.

Then I see that over here.

So also, while I'm livestreaming,

I like to keep the corner of my eye on the live chat.

So usually what I'll do is I'll take the chat as a little pop

out window, and put it next to Open Broadcast Studio,

and increase the size of the font.

And we can see, now, all of the various members

like SolarLiner, and Xavier, and motiontx

who are watching and telling me that there

was no sound earlier, which is always really helpful.

I also have a secondary Slack channel

going on this extra laptop where I also keep the dashboard

so I can see who's watching and how many people, which right

now is nine concurrent viewers.

So maybe you've also noticed that I sometimes play music

or different sound effects.

And those are coming here from this iPad.

So this iPad is running a piece of software called Soundcue.

The audio is playing out of this laptop,

to coming out of the headphone jack

into this little Onyx Blackjack USB recording interface.

So it actually then comes out of here, USB, into this laptop.

Because that way, the laptop's audio

is going out into the recording system.

So that can be included as part of the live broadcast,

because when I play audio here, under laptop,

you can see the green under microphone going up,

and you can see the green under laptop going up.

Both of these are two separate audio sources.

So I can capture audio from this laptop itself,

if there was sound in an example I'm programming.

But I could also get the audio from this iPad,

into this laptop, into there.

And to do that, I'm using a piece of software

called Loopback.

Loopback is Taking the audio from the Onyx Blackjack

interface, and it's actually monitoring it out

through the Multi-Output Device, which

is actually the DisplayPort, the HDMI OUT port.

And then it's coming into Open Broadcast Studio that way.

So this mic here is going directly

into Open Broadcast Studio via a separate USB input

to the streaming computer, but then the audio from this iPad

is coming out separately through this computer.

This computer.

So many computers.

This lab mic, this is the wireless receiver.

So all the audio from this mic here is coming into here.

Then this is another USB interface

into the streaming computer.

So that's where my audio is coming from.

So over here in this other part of the closet,

I have a second camera, also HDMI OUT into a Black Magic

box.

And this camera is pointed at this whiteboard.

So this is actually not a whiteboard.

It's just whiteboard paint on the wall.

So it's actually not the greatest

because it's hard to clean, but it is nice

that it covers so much space.

So what I do during a live stream,

if I want to draw some sort of diagram, with a rainbow,

and this one's going to be a cat.

Then what I do is, I have a separate scene

that's in Open Broadcast Studio called whiteboard.

So I could just click on this, and there you go.

You see the whiteboard.

I'm going to go back to this one.

But that's inconvenient.

I used to have this button that was hooked up to change,

to tell it to give up, Open Broadcasting Studio,

to switch between the different scenes.

But it so happens that you could just use a keyboard to do this.

So in Open Broadcast Studio, under Settings, under Hotkeys,

you can set certain keys to switch to a certain scene.

So if I say Two, then now I've switched to the whiteboard.

I can walk over here.

You can see me.

I can draw here on the whiteboard.

And then I can walk back.

And if I hit One, I'm now back over here

talking to you about this.

So Two goes to the whiteboard, One,

and then I have other hotkeys.

Like, the key z will quickly turn off the computer.

So if ever I'm about to type in a password or some secret API

key that I don't want people to see, I can turn that off.

Or if I'm playing--

I forgot to do this, actually, this morning--

but If I'm playing a video or something

and I don't want to stand in the shot,

I can disappear or reappear however I want.

There's so much more in Open Broadcast Studio.

You know, I could have a fade between the scenes

and all that kind of stuff.

I could have a preview of what's coming next.

But I'm using it the most simple way.

I also always keep my copy of A Million Random Digits

nearby in case I want to relax and read some random numbers.

I usually have a train whistle, but I

didn't bring it with me today.

It's very sad.

But I do have a bell which I like to ring.