Physical circuit models have an inherent ability to simulate the behaviour of user controls as exhibited by, for example, potentiometers. Working to accurately model the user interface of musical circuits, this work provides potentiometer ‘laws’ that fit to the underlying characteristics of linear and logarithmic potentiometers. A strategy of identifying these characteristics is presented, exclusively using input/output measurements and as such avoiding device disassembly. By breaking down the identification problem into one dimensional, search spaces characteristics are successfully identified. The proposed strategy is exemplified through a case study on the tone stack of the Big Muff Pi.
|Title of host publication||Proceedings of the 22nd International Conference on Digital Audio Effects (DAFx-19)|
|Place of Publication||Birmingham|
|Publisher||.John Wiley & Sons, Ltd|
|Number of pages||8|
|Publication status||Published - 02 Sep 2019|