Looping Ways: Rotate Sums looping

This is another loop tool from Antares Infinity (click here if you don't have it), and it’s interesting because it could be a good alternative to crossfade.

What it is this “Rotate Sums” thing? Basically it’s distributing random irregularities throughout the loop. This type of loop works for non-periodic samples (strings, chorus, synths stacks, noise, etc).

And what’s the advantage of this looping way? Unlike crossfade, this one doesn’t change the size of the loop start-end. This means we can preserve the duration of the loop, instead of making it shorter like the crossfade. So, this is useful when we have limited memory and the size of the samples matters.

Here a little demo of it: first, it’s the sample with a raw loop, second, the sample using crossfade, and finally, the sample using rotate sums.

Now I’m going to explain the controls of this tool.

Rotate Sums Window

BEFORE of using this, we have to make sure our sample does not have clicks in the loop. A simple fix of this could be to add a little crossfade just to make it disappear. After that, we can use the tool, and it’s very simple: we only have a rotation count. We have to experiment the different values until we get a coherent result for our sample, so, pay attention of how the loops sounds.

And then we have the “Merge Attack and Loop Segments” controls which are just how we fade the start of the original sample with the generated loop to have a coherent transition between the two.

Explaination from the manual

And this is how to use Rotate Sums Looper, now it’s your turn, and experiment this tool with your samples!