- Hello, I'm Mike Russell from MusicRadioCreative.com.
In this video,
I'll show you how to remove background noise
when you're recording on location in a noisy events hall.
(upbeat music)
Okay, before we get started,
if you enjoy this video at any point, hit the like button,
and remember to subscribe, and also ding the bell,
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I do them weekly, audio production tips and tricks,
podcasting, and a whole lot more.
And today we're working in Adobe Audition
to get rid of, well, audio that sounds like this.
(people chattering)
So, that's the noisy hall here, and-
(people chattering) here, and, in context-
- [Woman] Hello, everybody, and welcome.
- Okay, so we've got someone speaking there in a noisy hall.
Now, if I go ahead and use something like
noise reduction restoration, denoise,
and push it right up to a hundred percent,
(people chattering) it doesn't have any impact.
Look at that.
Let's go to before and after.
No impact whatsoever.
Switch on spectral frequency view as well, Shift+D.
(people chattering) - Hello, everybody.
- Okay, so no impact at all from the noise,
the denoise effect.
That's why we need to get a little more clever
and focus on just the noise from the events hall.
(people chattering)
So, something like this, or-
(people chattering)
Now, there is a little tut there,
so I'm gonna remove that tut so it doesn't impact the noise.
I wanna remove.
(people chattering)
Maybe a little extra there that I want to get rid of,
so we can just on that noisy background chatter.
(people chattering)
Okay, and then I'll go into effects,
noise reduction restoration.
We're gonna use the sound remover for this,
and we're gonna teach it the sound model of that audio,
learn sound model like that.
There we go, it's done it.
Select everything, and let's listen to
exactly how it sounds right now.
Enhance for speech should be on,
because, if it's not,
you can get at something that sounds like a dalek.
- [Woman] Hello, everybody, and welcome to today's show.
- Now, if you're going for the alien voice,
then that's perfect.
But if you want a proper voice,
enhance for speech needs to be on with the sound removal
when doing these kind of remedies on your audio.
- [Woman] Hello, everybody, and welcome to today's show.
- Not too bad, is it?
We can always try decreasing or increasing the FFT size.
Let's try increasing.
- [Woman] Hello, everybody, and welcome to today's show.
I- - Okay, at 8192,
we get a bit more background noise,
so I'm gonna dip back down to 4096.
If you go too low, it's gonna start
jittering your audio a bit.
(audio jittering)
No, that's definitely no good.
1024. (audio jittering)
- [Woman] Hello, everybody, and welcome-
- Still jittery, so we'll stick at 4096 there.
Because the sound that we're trying to remove
is quite complex, we need to increase
the sound model complexity and the refinement passes a bit.
Let's do that, to work a bit harder.
- [Woman] Hello, everybody, and welcome to today's show.
- Okay, sometimes that's gonna adversely impact the speech,
so let's pull it down a bit.
- [Woman] Hello, everybody, and welcome to today's show.
- Okay, so we've already got something
that's much better than our original.
We can now apply that,
and be gone with much of the background noise.
You might want to tweak some of the settings in there.
Let me show you which settings in particular
you'll want to look at
to get the best possible sound.
First, always make sure enhanced for speech is on,
if it's dialogue
and there's background chitter chatter going on.
That's really gonna help.
FFT size, increasing will be
a little more lenient on the speech,
but bring more of the background noise back in.
And then, of course, reducing that is going to
really severe really impact your speech
at some stage or another.
With the sound model that we're trying to remove,
sometimes increasing that can have a positive impact,
but can also degrade the speech as well.
And, if you find that the speech is quite complex
in and of itself, and you'd like to retain more of that,
'cause it's starting to get artifacty
and affected by the sound remover,
just try increasing the content complexity a little bit.
And. if you like, also try with the refinement passes.
But, really, this is a very, very powerful tool.
It will definitely make your audio sound different.
Sometimes for the better, occasionally for the worse,
but definitely worth the try if you're trying other effects
in the noise reduction arsenal in Adobe Audition,
such as denoise, adaptive noise reduction,
or the noise reduction process, none of that's working.
Bring out the big guns, sound remover,
teach it the sound model of
only the audio you want to remove,
and you'll be onto a winner.
Talking about removing audio,
if you are podcasting
and you've got an air conditioning unit,
a fan, like a computer fan,
or anything else that's noisy in the background,
or echo in your big space that you're recording in,
go and check out my pro podcast presets.
They have specific presets
that allow you to remove noise just like this.
Then, also presets for
specific podcasting microphones as well,
to help you sound your best.
MRC.fm/presets is where you need to go.
That is MRC.fm/presets.
And, remember, I have weekly audio production tutorials.
Just hit subscribe on my channel right now.
(upbeat music)
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