This is a method that I use all the time. OK, that doesn’t really help does it? How about a video tutorial? It really depends on the source material and your sonic objective. You could even use a combination of all three tools. “How do I tempo change a loop in Pro Tools?” This is a common question and the answer is, “There are lots of ways.” You could use Beat Detective, or you could use the TCE Tool, or you could use Elastic Audio.