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.
Author:
McCullough, Connor
Affiliation:
Bose Corporation, Boston, MA, USA
AES Convention:
140 (May 2016)
Paper Number:
9558
Publication Date:
May 26, 2016
Subject:
Audio Signal Processing: Audio Applications
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