This week on MacBreak Studio, Steve Martin from Ripple Training shows us how to edit audio “within the frame” in Final Cut Pro X.
In each second of video we normally see about 24, 30, or 60 individual still images – enough of them to create the illusion of movement thanks to a phenomena known as the “persistence of vision” which allows our brains to string together these images.
Digital audio has a similar granular structure: individual samples, that when combined, create what sounds like a continuous stream of audio. However, it takes many more of these samples every second to create good quality audio – normally about 44 to 48 thousand of them.
You can only edit video down to the individual frame level – but if there are 30 frames of video in a second, each of those frames contains over a thousand samples of audio! What if you needed to be able to edit just part of the audio contained in one frame of video?
Final Cut Pro X allows you to edit audio down to 1/80th of a video frame – which is enough level of detail to be able to remove a click or pop without creating a noticeable gap when played back. Steve shows us a couple of methods for how to edit audio at the subframe audio, using both keyframes and the blade tool.