This is an effect I wanted to try out for a composition that I am currently working on. A sample is recorded from whatever source you choose. This sample is then looped and has some AM applied to it. At the same time, it also spins around recreating a Leslie cabinet effect. The frequency of the AM can result in interesting effects. Under 10 Hz you have a type of spinning tremolo, while over 10 Hz you get your original signals with added sidebands. The code also includes the possibility to make the loop from one position to another.
This is a basic set-up which I have since modified to include in specific situations but I thought it might be useful for some people.
The code as always is done in Antescofo but shouldn’t be too hard to port to another language. I have included a MaxPatch as well for the sake of completion, but it requires both the Antescofo and SPAT externals from IRCAM to function. However, you could replace SPAT by any spatialization external you wish to use.