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Adobe Premiere Pro - Advanced Training

Sample-Level Audio Edits between video frames in Premiere Pro

Daniel Walter Scott

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Hi everyone, in this video I'm going to show you how to change your Timeline, instead of dragging along and doing frames per second, it's going to do audio samples per second, where there's like bazillions. The short answer is, right click this, and go to that, 'Show Audio Time Units', let me explain it a little bit better. 

So at the moment we're in frames or frames per second, right? We know that most of the stuff we've been dealing with, in this course has been 25 frames or 23.976, or 60 frames, 100 frames, 120, that's the way that we've been working in Premiere Pro. So it means that if I've got a bit of audio, see this bit here, I want to manipulate this little chunk here, it's going to be tough because, you know, I've only got this, like the scale is not big enough, audio is recorded in like samples, and, like this particular audio track is probably, you can kind of see it over here, 48000 Hertz, so you know, consider it 48000 frames per second, so you can zoom in quite a bit. 

So to change it, so I can work in that sort of frame rate, at least that sample rate, you go up to your little burger menu here, and just turn it on, 'Show Audio Time Units'. So in this particular case there's 48000 of them, so you'll get to a second, so that's the 3 seconds and 36000 samples, and eventually when it gets to 3 seconds and 48000 samples, it'll switch over to the next second. So let's have a look, just keep zooming, look at that, we can get in real detail now, you see, you can start doing, let's say you need this little bit gone, or adjusted, or raised, or done something with, remember, holding the 'Command' key down on my Mac, 'Ctrl' key on a PC, to click on the rubber band here, you can start doing some really, fiddly adjustment to the audio. 

There just might be something that you need to get in there, and tear out, you can zoom in way closer than that as well. So remember, 'Option +' to get in on the audio, wrong button, nope, right button, it's making my track bigger, Dan, just hit '+', and eventually you start to see the waves, where are they? Let's look at something a little bit more drastic, let's get in there, oh, look at them, you can zoom in way further as well, remember, holding down the '+' key, you don't have to hold anything down, you just want to zoom in, let's say this waveform here, I want to make this taller, remember, 'Option +' on a Mac, 'Alt +' on a PC, so I can see it all, I'm going to go full screen with my little Tilde, '~', and look how zoomy I can get, oh look, it turns into little waves, there you are, little wavy Hertzy guys. 

You can start grabbing all these little peaks and troughs, very exciting. To turn it off, let's go back to full screen, Tilde, '~' key again, and let's turn off, sorry, 'Audio Units'. Now we get to see it back in kind of frames per second, feels real clumsy at this giant size, where's my 48000 separate little units, phew. Lucky we don't record that sort of frame rate, we will one day, it's pretty common to do, what, 120 these days, man it's going to get bigger and better, my phone can do 60, easy. I'm sure these phones can do 100, but anyway, I digress, let's jump into the next video.