Join Robbie Carman for an in-depth discussion in this video Level QC, part of Premiere Pro Guru: Audio Finishing Techniques.
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- So, we've talked about a lot of different level considerations, in this chapter, using Premiere Pro. We've talked about digital-level, and true peak, and loudness, and we even made sort of a blunt force fix to a loudness legality issue that we had, by using the Master-Track fader, in the previous movie. In this movie, I want to show you a tool that, I think, is exceptional and really cool. We can actually jump our audio over to Adobe Audition and analyze that audio for all of these different level values, including peak and true peak, and loudness.
Furthermore, if something's off, we can make the fix in really just one click, over in Audition. So, if you're following along, I have the sequence 06_04_Level QC open, and this is actually the same sequence that we've been working with, but what I've gone ahead and done is I've exported a stereo mix of the entire timeline. You'll notice all my original audio is gone, and I'll just tell you that this mix is a little hot. It's mixed at -6 for web delivery, but things like loudness, yeah, that's probably off just a little bit.
So, what I'm going to do is right click on this file, and then I'm going to choose Edit Clip In Adobe Audition, and if you need to know how to get audio over to Audition and back to Premiere Pro, be sure to check out those movies, earlier in this title. So, I'll choose Edit Clip In Adobe Audition, it will render and replace that real quick, and here, in Audition, I have the file. So, what I'm gonna do is choose the Effects menu, and then down to this option, Match Volume, and when I choose that, the Match Volume panel becomes active, and right here it says, Drag and drop supported media files.
Okay, I'll go ahead and do that. So, I'll drag my audio from the Files panel down here to the Match Volume panel, and right when I do that, it analyzes that file. Now, if it didn't do that for you, just make sure that you have this button selected. This little button that looks like a sort of magnifying glass on an audio waveform. Now, let me make this a little bigger. Now, you can see after it analyzed, it measured in a whole bunch of different ways. ITU Loudness: ITU is just a standards body. There's regular sort-of Adobe Loudness here. There's Total RMS, Peak, Perceived Volume, all these sorts of things, and in one fell swoop, I can see whether my show passes sort of a given standard.
In this case, I can see that my ITU Loudness is -18, and that's not gonna be legal for most broadcasters. Remember, -24 is usually the target, plus or minus 2 LUFS or LKFS. So, I know that I have a legal loudness here, my Peak is right about where it should be, at -6, but what I can do here, that's really, really cool, is that I can actually fix the audio right in this panel. There is one caveat, of course, the best way to fix a file that has any level issues is to go back and manually adjust your mix.
Sort of the automated approach that I'm about to show you, is kind of a last ditch effort. Now, with that said, if your mixed levels are off by a couple decimal points, this can be a perfectly acceptable way of making the fix. However, if you're off by a lot, yeah, you'll probably want to go back and adjust your mix by hand, and then re-analyze the file. So, here on the Match Volume panel, what I wanna go ahead and do is come down to the bottom of the panel, and there's this little kinda grabber icon right there. I'm gonna drag that up, and this is where I can see my Match Volume settings, and you can toggle that on and off, just by clicking that button, but kind of annoyingly, you have to drag that up, every single time, at least on Windows.
So, here in the Match To pull-down, I can choose any level standard that I actually want to match. In this case, I want to match for loudness. My loudness is way too loud, I want to bring it down. So, I'm gonna bring it down to -22 LUFS. Remember, LUFS and LKFS, that we saw back over in the Loudness Radar, are essentially the same thing, the mass a little different, but for all intents and purposes, they're essentially the same thing. I can also use Limiting when I do this, just that way, if I have any really loud audio, I can bring it back into check by using some Limiting, so I'll turn that option on as well, and then, I'll click Run.
When I do that, notice what happens. Automatically, my ITU Loudness is now -22, it's legal. My Peak, yeah well, definitely brought my peak values down. They're no longer -6, but that's okay, because there's a correlation, obviously, between all of these different values, so as I brought my Loudness down, I also had to bring my Peak levels down. Again, when you're manually doing this, you have a little bit more control over that balance. So, I think you can see that this is not only a great way to QC your audio, to make sure that your levels are all correct, because you can see all the various levels, that you need to measure, in one place, but it's also a great way, using the Match To command, to make a fix in sort of an automated way, to your overall mix.
Watch the companion course, Premiere Pro Guru: Video Finishing Techniques, for more information about finishing the visual elements of your projects.
- Working with others
- Exporting audio tracks and video references
- Keyframing clip and track properties
- Using Premiere Pro's mixers
- Adding effects with compression, gain, normalization, and EQ
- Fixing audio issues with Audition
- Making your audio broadcast-legal
- Outputting stems