Experimental audio effect based on dynamic signal filtering

Abstract

This paper deals with an audio effect that utilizes multiple types of digital signal processing to creatively produce various sound colors with musical signal as its input. Used signal processing techniques include: frequency filters, delay line with signal interpolation, low-frequency oscillators. The paper includes description of the structure of the proposed audio effect, approaches used during the implementation process and several examples of the functionality of its individual features. The proposed effect was developed using Matlab and its Audio Toolbox extension.