- Hello, I'm Mike Russell from musicradiocreative.com.
In this video, I'm gonna show you how to remove
a touch of noise and also improve audio
that you've recorded.
(upbeat music)
So let's hop into Adobe Audition to do the work.
And here are my courses.
If you want to learn more from me, head to mrc.fm/learn.
I'd love to teach you in bite size video chunks
inside these courses, mrc.fm/learn
for audio production, podcast production,
sounding great on a live stream and a whole lot more.
A lot of my knowledge right inside those courses.
So here we go, we've got some audio.
- [Woman] Yeah, and it's the belief that you're capable.
You're a capable individual.
- Now, when I'm working with reducing noise
I always like to open up spectral frequency view
which complements the waveform,
waveform will show you the amplitude and the volume
of all this speech.
But down here, you'll see that the spectral frequency view
gives you a nice look at what's going on.
So you can see these purple speckles here,
particularly in between the speech
indicate a lot of noise going on.
So what I'm going to actually do
is get rid of this first and foremost,
by using one of the great noise reduction effects here
called de-noise.
This is really, really good to use using the preview window
which is up here on the top right,
it can show you before and after
of what that de-noise is doing.
So with it completely off.
- [Woman] You're a capable.
- Got lots of hiss, listen to that hiss.
There's the hiss there.
And then with it all switched up, let's push it up to 76%.
The further you go, the more it removes.
- [Woman] Yeah and it's a belief that you're capable.
- So that's much better than.
- [Woman] Yeah and it's a belief that you're capable.
- Switching it on makes a huge difference.
So applying that straight away.
The next thing I'm gonna go ahead and do
is going to affect noise reduction and restoration.
I'm gonna go to de-reverb.
And again, this works the same as de-noise
but it removes any room reflections, any room echo.
So let's have a go with this.
- [Woman] Yeah and it's a belief that you're capable.
You're a capable individual.
You're a very resourceful.
- Okay with a little bit of that,
it does just a tad amount of echo removal.
And you've got now already a piece of audio
that's sounding a lot better,
but now what I might want to do
is add in one of my favorite effects,
and this is kind of a catchall
for fixing any background noise problems
that remain after you've done the de-noise and the de-reverb
and also helps you to improve the overall quality
of the audio.
Let me just say, first and foremost,
you should always fix noise problems
before you start going on to do
the effects I'm about to show you
as these can actually have the adverse effects
and make the audio quality worse.
So in effects, amplitude and impression,
we've got dynamics here and I'm gonna set it
to the default view.
And we'll start first with an auto gate,
auto gate is like a noise gate.
It opens up when you let audio
above a certain threshold through and closes
when audio falls below that threshold.
So you have complete silence.
And again, shift in D or this icon up here
for the spectral frequency view
will show you the impact it has.
Let's bring this threshold down a bit.
- [Woman] Yeah, and it's a belief that you're capable.
You're a capable individual.
You're a very resourceful individual.
- So as you can hear that it's closing the gate
every time the speech is going silent
and keeping it nice and crisp,
we can also add on a compressor
to even out these volume levels.
You can see sometimes the audio's quite loud
and then our speaker goes quite quiet.
We can change that,
default threshold of minus 20 is pretty good.
Push the ratio up to maybe two or three for speech.
And let's see what happens down here.
Now we've got a nice flat wave form.
Of course, compression by its nature,
pushes down audio above a certain threshold.
So in that case, we need to push, make the gain up
to make that audio loud again.
- [Woman] Yeah and it's a belief that you're capable.
You're a capable individual.
You're a very resourceful individual.
- Okay let's apply that.
And we're already getting a great sound.
Let's switch off the preview window, off spectral frequency
and we've got much more uniform audio.
Yes this audio is recorded at a little lower quality.
So when we actually switch on spectral frequency
we can see it cuts off around the eight kilohertz mark.
So we're losing all the top end
from this speaker unfortunately,
that's not something we can bring back using EQ,
but we can certainly try and shape it
to sound a little bit better.
And that's again in effects.
And we'll go to filter an EQ this time,
plyometric equalizer maybe to add some finalization to this.
I'm gonna add on HP for high pass filter.
Let's push that up a bit, cut off some of the base.
Some of the low end.
- [Woman] You're a capable individual.
You're a very resourceful individual
and you have overcome, I--
- And then what we're going to do
is also notch up some audio.
- [Woman] You're a capable individual.
You're a very resourceful individual.
- Just pulling down here around the boxy base,
the boxy low end.
- [Woman] You're a capable,
if you have been in the world, which you all have
you have overcome a number of things in your life.
- So there we go.
That is audio that we've improved with just a few steps,
de-noise, de-reverb, auto gate, compression,
and a tiny bit of EQ.
But do remember all of this stuff up here
all the high end is missing.
All we can do is maybe pull down on the low end
and push down on the mid to low end as well
to just increase the presence and clarity,
but already with just a few steps,
you can improve the sound of audio
using the tools in Adobe Audition
(upbeat music)
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