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Looper's Delight
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> When you say parallel loop, do you mean a new buffer? When > Mobius overdubs, isn't it just creating a new buffer along side the > first one? Sort of. A layer is basically a buffer, it is the management of this collection of buffers to make it look to the UI as just one loop with a scrollable history that is hard. > I take it it is not replacing the original buffer and creating > a new one with both old and new material, otherwise you would not > be able to undo. In Mobius, the previous layer is continually being copied into the next layer, with feedback applied, and merged with live audio. So yes, it is "creating a new one with both old and new material" but it is also not replacing the previous buffer. This is what gives you a layer history. Unlike phrase samplers that take the "autonomous parallel loops" approach, there is no limit to the size of the layer history other than memory. The other problem with parallel loops is that once you have more than 20 or 30 of them the cost of merging them at runtime starts to become significant and the CPU spikes. Layer management in Mobius is actually far more complicated than this but I won't bore everyone with the details (unless asked :-). It is relatively simple of you're just doing endless overdubs with feedback, but when you start throwing in inserts, unrounded multiplies, and other structural modifications in the middle of the loop it gets, um, hard to maintain a layer history and do all the flattening that needs to be done in real time. Another thing phrase samplers typically have a hard time with is letting an overdub carry over seamlessly from layer to layer without introducing a "fade bump" at the edges of each layer. If you don't fade the edges of the layer, then say reduce the volume one of layers, there will be a hard vertical wave form jump when the layers are merged that will sound like clicks. But if you do fade the edges you don't get a nice seamless overdub. Jeff