Comparative Performance Analysis of Artificial Reverberation Algorithms

A Genetic Algorithm For Parameter Adjustment Of An Artificial Reverberation Model

“…When h i (z) and t(z) are not present, it is possible to choose the coefficients so that all poles are precisely located on the unity circle of the z-plane [1,7,9,10]. Consequently, the system becomes lossless and lays in the edge of stability, resulting in an output with infinite reverberation time.…”

“…The general FDN model [7] is shown in Fig. 2 In the absence of the absorbent and output filters, equations 1 and 2 completely define the FDN [1,9,10], where ) i ≤ N , are the delay line outputs at sample time n:…”

“…The effect of reverberation adds life and sense of space, associated with the architecture and acoustic of concert halls [1]. However, from the computational viewpoint, modeling and simulation of artificial reverberation is a very difficult task, demanding expensive computational effort.…”

“…As described in [1], early reverb is related to the first sound reflections and has a typical duration of tens of milliseconds. Late reverb consists in a dense group of reflections that decays exponentially with time.…”

“…After that, several works proposed different solutions to the artificial reverberation problem. In recent literature, Toma et al [1] present a description of algorithms for some early and late artificial reverberation A Genetic Algorithm (GA) is a stochastic search method inspired by the mechanics of (Darwinian) natural selection and genetics [3]. GAs have been successfully used in a wide variety of applications in engineering and science [3], [4].…”