The purpose of this paper is to propose an algorithm to serve as an alternative to the chorus effect, the current standard for simulating an ensemble from a single track. Due to the deterministic nature of chorus, specifically the use of an LFO to modulate the delay, chorus often has audible oscillation and does not truly model the behavior of musicians playing simultaneously. The proposed alternative is the implementation of a Gaussian-based algorithm that attempts to model the actual process of musicians playing together. This modeling will be achieved by generating a Gaussian matrix ([# of instruments] x [# of notes]), with each index containing a resampling factor that will temporally and tonally shift each note in a recording. While the Gaussian distribution will serve as the basis for the algorithm, additional constraints will be applied to the resampling factor in order to properly model ensemble behavior.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.