[audio out of sync with video] Do you find that your audio
drifts out of sync like mine is now
during long-duration recordings? If so, I'm going to show you
an easy and efficient way to fix it.
Let's get Undone.
[offbeat music]
♪ Gerald Undone ♪
♪ He's crazy ♪
What is happening, everybody? I'm Gerald Undone
and today we're going to be tackling
audio drift using Adobe Audition.
Now, there's other programs you can use to deal with this
as well, but I'm most comfortable with Audition,
and it integrates well into Premiere Pro, so that will help
with the efficiency angle that I'm going for as well.
Now, there's a few different ways to fix audio drift,
but this is the method that I've been using
for the last couple months now and it's really easy
and it's shaved quite a bit of time off my workflow.
And the sync drifting that I'm referring to
is when you record your audio on a different device
than your camera and then you try to sync them up in post.
The problem is that the audio from the one source
runs slightly faster than the other, and so, when you try
and sync them up over a long recording
it can be really noticeable by the end
just how out of sync they are.
But let's jump in to Audition and Premiere
and I'll show you what I'm talking about.
OK, so, here we have a clip, this is just a long
video recording that I made, and this is the audio track
that came with the recording right out of the camera.
It's not great audio, it's just throw-away audio
that you use for syncing.
And then if we jump over here to Audition, this is where
I have the audio that I recorded externally in Audition
straight from a microphone through the interface.
This is clean audio, not noisy, not using the camera preamps.
This is the audio that we want.
But if we export this audio and we'll save it as Vocal Track 1
so that I know what it is, and then if we jump
into Premiere here and we try and sync it up--
Now, I'm going to do this manually, just by trying
to sync up the claps that I did with the two audio tracks.
There's obviously, you know, algorithms that do this,
but I always find that they're never quite accurate,
especially over a long recording.
You generally have to cut the clip up
into multiple pieces in order for it to work that effectively.
So, I'm just going to sync it up manually here,
but syncing it up manually isn't the greatest
in Premiere because you have to go based on frames
and sometimes the audio doesn't really line up perfectly.
But I'm going to do my best.
So, I'll just get it as close as I can and then--
Yeah, that sounds pretty good.
So, OK, so now that we have the beginning synced up,
we'll jump over to the end and you'll be able to see
the drift that I'm talking about.
So, if we zoom in here, you'll see that there is now
considerable difference compared to where the claps were.
[doubled sound out of sync] That's going to be it from me.
I hope you found this video helpful
or at least entertaining, and if--
So, that's really out of sync,
like that's not going to work at all,
it's not going to line up with the mouth anymore.
And so, that's no good.
Now, the way that you would fix that conventionally,
like I said, is you would put lots of little cuts
in here and then you could move each clip and sync them all up
individually, and this is what I used to do before
and what I've seen a lot of other videos
and tutorials recommend.
And it works well, it's just that it
can be quite time consuming.
So, now I don't even bother with any of that.
So, let's just undo all of that and I'll even get rid
of the track that we brought in from Audition.
And so, what we're going to do first is right-click
on the scratch track from the camera and choose
"Edit Clip in Adobe Audition".
Now that's going to take that and open it up in Audition.
And now here we'll have that.
Now, we're going to click on "Multitrack" in the top
left-hand corner and then that's going to show
our original good audio that we were talking about earlier
that we recorded in Audition, and then I'm going to bring
the camera track in here so that we can use it for syncing.
And we're going to sync the beginning the same way
that we did in Premiere Pro.
So, I'm just going to slide this over
and I'm going to line up the claps.
And it's much easier to sync things in Audition than it is
in Premiere Pro, again because of that whole frame restriction.
So, we can really line it up a lot better than we could.
It's much more-- We have much more control over it.
Alright, so that's pretty good.
Now let's jump over to the end of the track,
and again you can see how out of sync these two clips are.
But now we have this advantage in Audition that we can grab
this little thing up here that shows the Stretch tool,
and we can actually just drag the clip out and what
this is doing is slowing it down so that it matches
the rate of the track from the camera.
And we can fine tune that really well and get it
nice and synced up that way, so that's it.
It's already in sync.
And we did this by slowing it down,
but you don't have to worry, it's not going to affect
[slowed audio] your vocal pitch at all,
[normal] it's only being slowed down by like .001%.
So, it's not that big of a deal.
But rather than just typing in the number, which you can do,
I like the stretch tool because you can fine-tune it and you can
use claps at the end to, like, you know really get it--
Just really dial it in without having to guess
different numbers. I like the slider; it works really well.
Now, once you're happy with the sync you're going to want
to make sure that the second track,
the track from the camera, is muted.
And you're going to go over here and click Mute.
And the reason why this is important is because we want
to use the entire session, but we don't want
to hear the second track, because it's noisy
and it's no good and just our scratch track.
But we need it there, and we need to preserve
the positioning of it so that we can keep the spacing the same.
You see how there's this chunk of empty space at the end
and at the beginning there's some empty space
on our Audition track.
That way when we go to "Multitrack" and we go
to "Mixdown Session" to "Entire Session"
we're actually going to be mixing down both tracks into one
but we're not going to hear the second track because it's muted.
But we're going to be able to keep the duration
exactly the same.
This way we don't have to resync it in Premiere
because we know that it's going to be the exact length
because we're basing it on the body of the clip
that we exported from Premiere into Audition.
So, it's going to be the exact perfect length so that when
we go back into Premiere, we don't have to resync it using
that finicky frame by frame syncing that--
We don't have to do that. But here, I'll show you.
Now at this stage, by the way, this is when you could go
and you could normalize and add any effects or whatever
before we exported it, get the audio sounding exactly
how you want it to sound, if you want to do an EQ or whatever.
And then export the file.
And this time I'm going to type in "Vocal SYNC”,
so I know this is the good one.
And so, we'll go ahead and export that.
And now over here in Premiere we're going to import it
into our project and all we have to do now is, just like I said,
drag it right onto the timeline, and as you can see, boom,
it immediately lines up with the beginning collapse,
because, you know it's not perfect, but I didn't do it
-[Gerald clapping on video] -perfectly on Audition,
-[Gerald clapping on video] -but it's pretty close.
You just take a little bit more time on Audition
when you sync it up and it'll be perfect.
And then if we go ahead and check out the end of the track,
we'll see that it stayed in sync pretty much for the majority.
Again, not perfect because I didn't do a perfect job,
but really, really close. Let's have a listen.
But that's going to be it for me.
I hope you found this video helpful or at least--
So, that's very good.
If we mute it and we check it out full screen:
--least entertaining.
And if you did, make sure you leave it the old thumbs up
and consider subscribing if--
That's definitely a passable sync.
And we can even take our new track and just replace
the other one with it and then link them back up.
And now we just have one big chunk of video
and audio that are linked together and they're in sync.
And this is advantageous, so we don't have to multiple
things to multiple different cuts and apply it to all
the different clips. We can just do things that we want
to the whole thing. So, just say if you wanted to a grade to it
you can just drag that down and drop it on.
It just applies everywhere.
If you want to do something to the audio
or whatever you just can do the whole clip.
And I think that it's much easier and it's a more
efficient method, and I did this whole thing
in like three minutes while doing this video.
So, if you concentrate on it you could probably
do it even faster and it produces a much better,
cleaner result than the other methods that I've seen.
This is the way that I would recommend
if you have software that supports these features.
Just that Stretch tool and then drag it over and if you export
first into Audition, match it up, then export
the whole session like that, while keeping your bumpers,
then you don't have to resync it.
You just drop it in and it's good to go.
And this is my favourite method.
I hope that this is helpful to you.
And while we're on the topic of audio,
I also want to remind you guys that that giveaway that I was
doing with Deity Microphone for the excellent V-Mic D3 Pro
is still going on but only for a few more days.
It ends on January second, so if you're watching this video
before January second, go check out the links.
I'll put one in the description and in the comments
that you can enter the giveaway.
There's multiple ways to enter and you'll have two chances
to win because we're going to give away two microphones.
But that's going to be it for me. I hope you found this video
helpful or at least entertaining, and if you did,
make sure you leave it the old thumbs up
and consider subscribing if you haven't already.
But if you did not find this video helpful or entertaining
feel free to hit the dislike button twice.
Alright... I'm done.