- Okay, in this video,
I'm going to make Neil Armstrong's famous speech,
go from this,
(airy background noise)
- [Neil] That's one small step for man.
One giant leap for mankind.
- To sounding like this:
- [Neil] That's one small step for man.
One giant leap for man kind.
♪ Check your mic and make sure it ♪
♪ Sounds right, boy. ♪
♪ It sound right, boy. ♪
- Let's get to it.
I'm Mike Russell from Music Radio Creative,
and here we are in adobe audition.
So I've downloaded Neil Armstrong's famous:
- [Neil] : That's one small step for man
- There's all kinds of crackling and background noise
going on there. It actually came from the NASA website.
They've got archives of everything from Apollo 11
and many of their other missions as well, available
free to use, copyright free.
Fantastic stuff.
Love it.
And I'm gonna attempt now to do some good work on this.
So the first thing I'd always do when I'm working
in Adobe Audition to do audio restoration,
because in my opinion,
it's the best software out there
for noise reduction and removal,
is I'll pop open this view up here.
It's the spectral frequency display.
Shift and D is the shortcut key.
And it brings you up
like a heat map of what's going on with the audio.
So we can see different frequencies highlighted
in different colors.
Obviously the bigger the color, so the more fiery the color,
so the more yellow it is, the more hot it is,
the more that frequency there is.
Then it's red than purple then black for silence.
Ideally in-between Neil Armstrong's speech,
we want it to be completely black,
kind of almost like that to show that there's nothing going
on at the moment.
There's loads of background noise.
(background noise)
And you can see there's lots of stuff going on
in the base down there.
And you can also see there's a big frequency running
through here at about 500 Hertz.
Ooh, that's a sort of celestial sound, isn't it?
And here.
Ooh, yes. Very otherworldly, isn't it?
And then around here, we got lots of little glitches
and dots that might be radio interference, something
like that.
I mean, who knows?
We could dive into this as a separate project.
(airy background sound)
Lots of stuff going on there.
And of course up at the high end there, I can see there's
a frequency running through it around four kilohertz.
(high-pitched background sound)
Okay. So ideally we want to remove all of that stuff.
So to do it in one foul swoop, actually what I'll do
is pick a good amount of the noise.
(airy background noise)
And then I'm going to teach various different tools.
Two different tools I might use to do this.
And the first one is under effects
noise reduction restoration.
And it is actually the noise reduction process here
and I'll capture the noise print.
So it gives me a print of just the noise only.
And then I'll switch on preview mode at the top right
to show you before and after.
And you can actually look here
already to see the difference it's making.
- [Neil Armstrong] That's one small step for man.
- And remember before:
(background noise)
Wow, lots of noise.
- [Neil Armstrong] : That's one small step for man.
- And on.
So you can hear the difference there.
Now. Obviously I've got noise reduction cranked up
to 100% and reduced by 100 decibels.
That's a strong amount of noise reduction.
If I want to dial that in further,
I can probably pull the noise reduction off a bit.
You see more noises appearing.
So this does need a strong amount of noise reduction.
Let's pull the reduced by up.
That's a little more natural now.
- [Neil] That's one small step for man.
- And what we can actually do is we can grab those
lower end frequencies and focus
on them more by pulling those
up on the graph and you'll see them disappear.
- [Neil] That's one small step for man.
- And we probably go with this, actually.
Let's listen to the rest.
- [Neil] One giant leap for mankind.
- Pretty decent. Let's listen to this one.
- [Neil] Step off the land now.
- Okay. Now obviously you can see here
the frequencies of Neil Armstrong's voice.
They kind of drop off above two kilohertz.
So we've lost a lot of frequency information there.
Another way I could do it
if I didn't want to use the noise reduction.
Again, I can select a portion of the noise,
go into effects,
and we'll go to noise reduction restoration,
look for the sound remover,
and we'll learn the sound model of the background noise
and hear how that makes a difference
on the default settings.
- [Neil] That's one small step for man.
- Okay. It's not as good
because the background noise kind of comes in
when Neil Armstrong talks and then
disappears entirely pretty much without the speech.
So noise reduction in this case is probably
a little bit better, but what if I went ahead
and dragged Neil Armstrong into Adobe's Shasta project.
This is a brand new project from Adobe.
It's fantastic.
It does magic with audio
and all you have to do is create a new project.
So we'll do this and then we'll go ahead and give it a name.
We'll call it 'NASA' like so,
and I'm just gonna upload some audio.
that's on my hard drive here.
This is the Neil Armstrong speech.
In order for this to work
and to run an AI filter to improve Neil Armstrong's speech,
I'll first need to head into the dots menu, transcribe it,
and when it is fully transcribed,
I can then run a filter over it,
which is called enhanced speech.
And it uses AI algorithms to detect the speech
and give you almost studio quality sound on the voice.
It's going to be absolutely amazing.
Tick enhance speech and then play it back.
Let's listen to how Neil Armstrong sounds now.
(background buzzing noise)
- [Neil] : step off the lamb now.
- Sounds like some weird meditation, doesn't it?
(Mike making chanting noises)
- [Neil] That's one small step for man.
(distortion of Neil's voice)
- Okay. Now, as you can see and hear,
first of all,
the transcription wasn't quite bang on.
How about the lamb now.
It's one small step for man
hour by hour fleet commander.
Hmm. Somehow I don't think Neil Armstrong was looking
for lamb and fleet commanders on the moon, but hey
you never know do you?
AI isn't quite there yet,
but what do you think?
Let me know in the comments.
Is AI going to take my job yet?
It's done a pretty decent job
on some of it, but transcription Hmm.
And the weird meditation style chanting.
Yeah, that was because it was probably
reading information from the noise--
the background noise, which is why perhaps I'm not
out of a job just yet, because I can actually
do some improvements here.
So I can go ahead
and grab the effect that I was showing you earlier:
noise reduction restoration.
Capture that noise print that I was working on earlier.
Everything is preset as I had it before.
So I'm gonna leave that.
I'm actually gonna crank the noise reduction
and reduce by up a bit.
So I can really aggressively change this
and isolate Neil Armstrong.
- [Neil] Okay I'm going to step off the lamb now.
- So he is getting his lamb now.
- [Neil] That's one small step for man.
One giant leap for mankind.
- Okay. Now there's lots of crackling there on his audio.
I'm gonna cut off now
all of the bits that we don't need.
- [Neil] The lamb now.
- So that's just crackle.
We'll get rid of that so we don't confuse the AI.
- [Neil] That's one small step for man.
- More crackle there at the end.
Let's get rid of that.
- [Neil] One giant leap for mankind.
- Unfortunately, a bit of crackling over mankind.
(crackling background noise)
So I'm not sure how clearly the AI will pick that up.
Let's delete most of the silence
and just to make sure we
haven't got any noise going on at all in between the speech,
I'm actually gonna run a really nice light noise gate.
Again, I'll keep the spectral frequency on
so you can see what's happening here.
So again, in my effects, rack, amplitude and compression.
I'm gonna actually use dynamics and I'm simply
going to tick the auto gate here.
So auto gate, and you can see it's done a good job
on default settings.
Let's play it now.
There should be complete silence in-between the speech.
- [Neil] Okay, I'm going to step off the lamb now.
- It's probably a bit too aggressive.
Let's pull the threshold down to make it less aggressive.
- [Neil] I'm going to step off the lamb now.
That's one small step for man.
One giant leap for mankind.
- Okay, we've done the very best we can with the tools.
The AI will hopefully make it more studio quality.
I'm gonna save it out as 'NASA Improved'.
There we go. Done.
Back over to Shasta and let's just go ahead
and upload that NASA Improved clip.
And again, we've got all the audio.
You can see clear wave form there now, which is
helpful.
Transcribe.
Okay, the transcription's done its job.
Have a proper amount of one per man or half.
Is he still arguing over how much lamb to eat?
(sheep noise)
It sounds like it.
Anyway, let's go on.
Filter enhanced speeches on.
Let's see what the proper amount of lamb sounds like.
(distorted voice)
- [Neil] That's one small step for man.
One giant leap for mankind.
- Okay. I gotta tell you,
I think it did a pretty decent job.
I think the ones small step for man
actually got a lot better after I'd done a little bit of
noise reduction on the clip.
So perhaps I'm not quite out of a job yet
because I can do some audio cleanup and restoration
before bringing into AI projects like
project Shasta from Adobe and using
their enhanced speech, AI super magic algorithms.
So yeah, a little bit of audio knowledge,
a lot of computing,
and a little portion of lamb as well.
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Thanks for watching.
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