From the course: Audio for Video Editors: Essential Terms

Essential audio terms video editors need to know

From the course: Audio for Video Editors: Essential Terms

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Essential audio terms video editors need to know

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- Hi, this is Cherly Ottenritter and we're going to talk about digital audio fundamentals today and exactly the science behind the sound to understand the different concepts. So we'll go into sample rate, sample rate conversion, and how it deals with your NLE and your workflow, what exactly is frame rate and how does it affect audio when you go in and out of different frame rates, and then, and also importantly, talking about standard settings for record, mix and delivery. Following that, we'll talk about audio meters, a visual tool. So how do you read a meter? And not just if it hits red, it's bad, which we all know is true, but what is a decibel? How does it relate to the meter? What are VU meters and how can using all these tools help you develop a better mix? One of the big topics of conversation today is LKFS and LUFS for Europeans and basically, LKFS, we're going to talk about what it is, which is its perceived loudness and why they came up with this concept so that you can understand why you have to hit it in your mix. And then exactly how do I go about achieving that correct LKFS? What steps can I take as I'm developing my mix to meet that LKFS at the end? Also, we're going to talk about using real time tools in LKFS and non-real time tools at the very end to QC your own files so that you know when you deliver that you're hitting the specifications that are required for you. Along the way, we'll talk about signal flow and gain stages. Signal flow is huge and if you ever dealt in the analog world, you'll understand that signal flow is the flow of all the audio signal through the paths of what you're doing in record and in post. That signal flow in different places, you have an opportunity to produce gain in your signal flow. You may not exactly see all these hidden spaces where that might happen, so you might not understand why you're so loud or you're so soft. We'll talk about what is pre-fader and what is post-fader and exactly why that is in your NLE. We'll also talk about sound field, track layouts and deliverables, also, we'll make sure that you understand what the common audio track layouts could be in your NLE to help you achieve the proper mix at the end and to deliver the proper specifications at the end. All right, so let's go ahead and jump in and we'll start talking about the science of sound straight off.

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