![]() The first is to use the Fades dialogue window: Before and after: a crossfade is used to smooth the transition between Regions at an edit boundary.There are two ways we can create crossfades in Pro Tools. Creating CrossfadesĬrossfades don't have to be centred around the edit boundary. Of course, nowadays, with fast computers and hard drives, that feature isn't really necessary, but Digidesign have seen no reason to change it, and there is no doubt that when a system is working close to its limits, the use of rendered fade files will keep it going that bit longer before it falls over. This enabled the other two tracks to continue to be used all the way through, without limits. Digidesign got around this limitation by having Pro Tools render an audio file of the transition, so that for the same scenario it would play the normal stereo file up to the crossfade, then play the rendered stereo crossfade file, before picking up the second stereo file from then on. So why doesn't Pro Tools? Well, in the very early days, the first digital audio workstations could only manage a maximum of four tracks playing simultaneously! The problem was that if you had a crossfade between two stereo Regions, for the duration of that crossfade you were actually playing four tracks back from disk, thus blowing the possibility of having the other two tracks playing at that point. Not all digital audio workstation systems work like this: in fact, most actually calculate fades and crossfades in real time and play them from RAM as required. Pro Tools renders each fade and crossfade as a separate, small audio file, and stores these away in a special folder within the Session folder - called, not surprisingly, Fade Files. ![]() The duration, shape and position of fades and crossfades are all fully adjustable within Pro Tools. Fades are similar to crossfades, but apply where there is no overlap between Regions, for fading up the volume of a Region from nothing (fade-in) or fading down to nothing (fade-out). They can be used to smooth the sudden transition between two adjacent Regions, and help to prevent pops and clicks at Region boundaries. ![]() Crossfades are transitional Regions that span the end of one Region and the beginning of another. In this month's workshop we're going to look in detail at how to use crossfades and fades, and how they can be applied in batches as well as singly. As well as being vital editing tools, they can also be used in surprisingly creative ways. If you edit audio in Pro Tools, you need to know about fades and crossfades.
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