In this video you should put on some professional headphones or any
headphones that you have so you can hear the before and after the noise reduction process.
(thud sound)
("Orange Juice Extra Pulp" Song plays)
Hey everybody and welcome back to Premiere Gal! On this channel I make
tons of video editing tutorials and production tips that help you create
better videos. Today is a Tuesday tutorial and I'm going to be diving into
sound editing with you to show you how to remove any ugly background noises
that you don't like because audio is so important to your video if it doesn't
sound good then your video won't be as good, right? So I'll be showing you how to
start in Premiere Pro using a demo file that I will be providing and then go in
to audition to remove any background noises, okay? It's gonna be super simple
and there's no plugins needed. So be sure to download the file and follow along
and don't forget to put on your headphones and let's get started! Alright
so after you download the demo file it's called sound removal practice file it's
an .mp4 that has the video with the sound. Okay, and so you're going to drag and
drop this into the project panel to import it into Premiere Pro and then to
create a sequence from this file just click and drag and drop it here in the
timeline and now let me play it back so you can hear the humming background
noise that I'm talking about. (sound plays) "hey you guys and welcome to activity 3 where I'm
showing you how to use the zoom" So you can hear that it just doesn't sound good
it actually takes away from the video because you're just hearing this sort of
electric static noise that's in the background so you can try to repair this
using the essential sound panel and I actually have a whole course on how to
use the essential sound panel up on Pluralsight so I'll link to that in the
description box below if you guys want to get to know how to use the essential
sound panel but if you click on dialogue here by the way if you don't see this go
up to window and go to a essential sound to open that up, okay? So if you select
dialogue it'll give you a whole bunch of different controls and you can use the
repair tab to try to reduce that noise but it actually doesn't work that
accurately so instead I like to use audition. So here let me just move
this up and make this bigger and so first let's go ahead and duplicate this
sound file so you can see what the sound sounded like before and after at the end
of this tutorial. So let's go ahead and hit alt option (key) and drag this down so we
have a duplicate file here. So let's just go ahead and mute that one for now
and now let's right-click on this file and let's edit the clip in Adobe
Audition and what this will do is render and replace and it will open up Audition
automatically. Okay? Here in Audition you can see that it
extracted the sound file from that video clip and here is a visualization of that
audio. So if you do not see this here make sure to go up and select this icon
called show spectral frequency display okay and basically to help you read this
over here is measured in Hertz in the frequency levels at the bottom are the
lower frequencies and at the top are the higher frequencies and all of the yellow
orange and red are my vocal frequencies okay so we want to keep those intact and
all of this sort of purple fuzziness all around that's the noise we want to get
rid of you can see in the beginning there's an area where there's not a lot
of dialogue and ideally it's easier to remove noise if there's an area without
dialogue happening. okay? So let me just play this back here so you can hear the
noise here we want to get rid of that. And so in Audition what's really cool is
if you use this "zoom in" tool you can get closer here to see it you can actually
paint this out using this Spot Healing Brush tool you can paint out noise just
by clicking that brush and start painting see and what that does is auto
heal and starts to remove that but that'll take a long time to have to go
through and remove all of this right so you don't want to remove all of it that
way. So I'm just going to hit command Z command Z (Ctrl + Z on a PC) on my keyboard to undo that. So
what we can do to be faster is use the marquee selection tool to select a noise
print here and then remove that noise print from
the entire audio track okay so just sort of click and select this noise area okay
we don't want to remove all of it because it's it'll sound a little
unnatural if we remove everything but just enough just down to the bottom here
is good and you can see that if we play it back it'll just play that print that
we selected. So how to capture this noise? Go up to effects go to Noise Reduction
/ Restoration and "capture noise print." okay? Now go up to effects and then go back to
Noise Reduction / Restoration and select "Noise Reduction process..." And now we want
to apply this noise reduction process to the entire file, the entire audio track,
so select entire file so you can see here that there are a lot of controls
play around with right now its "output noise only" this only if you play it back
you will only hear the noise selected so let's just play it back so you can hear
the noise that will be removed so you can hear that it is all of that
background noise that we don't want plus a little bit of the vocal frequencies
and that is because when we selected this area here that's in the same
frequency range as the vocal frequency so it will remove some of the frequency
and that's why we have to be careful with these controls not to remove it too
much okay. So let's unchecked output noise let's play it back to see how it sounds.
(sound plays) "Hey you guys and welcome to activity 3
where I'm showing you how" (sound stops) So it sounds pretty good if you want to hear
what it sounds like without the effect just hit the "toggle the power state" this
will remove the effects you can hear what it sounded like before, "hey you guys
and welcome to activity 3 where I'm showing you" (sound stops) You can see that actually
with it on it sounds a lot better. (sound plays. "Hey you guys and welcome to activity" It's virtually
gone, right? So you can see here I have the noise reduction strength
about a hundred percent because I want it to work at a hundred percent here you
can play around with it and see how it sounds at different
and play it back if you want but I found that a hundred percent would this audio
file worked best and of course reduced by is by how much volume, loudness, you
will reduce the sound by of the noise and its measured in DB which is decibels
okay? And down here under advanced this is where I actually went in and
increased the spectral decay rate and essentially what this is is if you set
this to zero you're basically saying I want to remove all of the noise so
it's completely gone but if we do that and we play it back you'll hear that it
actually created some noise particles because it removed too much of our vocal
frequencies so let me play it back so you can listen to see if you can hear
those particles (sound plays) "hey you guys and welcome to activity 3 where I'm showing you how
to use the zoom h4n handy recorder okay" (sound stops) So it's kind of hard to hear but if you
listen carefully you can kind of hear that particles and you don't want that
particle noise because it sounds sort of artificial so if you add some spectral
decay and again you just have to play around with it I got to "10" after some
testing and you can actually smooth out the spectral decay as well as much as
you want until it sounds as good as it can, so if we play back now with the 10
spectral decay and some smoothing on you can hear (sound plays) "Hey you guys and welcome to
activity 3 where I'm showing" (sound stops) it sounds pretty good
right? So just hit apply and watch what happens look at that if we zoom out here
you can see that now where all of that noise was it's now gone it's now black
virtually. Right? And now what's even better is if you hit save and go back to
Premiere Pro it automatically places that noise reduction here and you don't
have to do anything so now we can play it back, "Hey you guys and welcome to
activity 3 where I'm showing you how to use the zoom," All right you guys so
that's all there is to noise reduction in Audition and Premiere Pro if this video
helped you out be sure to give it a thumbs up and if
you are going to start using this noise reduction strategy please be sure to
leave a comment below and subscribe to this youtube channel! Also you guys you
should check out this awesome resource I use for music sound effects even some
video editing templates for After Effects it's called Envato Market I'll
link to it in the description box below so you can check out some of the
favourite templates that I like to use in my videos all right you guys thanks
so much and I'll see you all very soon bye!
("Orange Juice Extra Pulp" Music Plays)
(Get 10% off Soundstripe music, code: GAL10)