From Blind to Semi-Blind Acoustic Source Separation based on Independent Component Analysis (2022)
Abstract / truncated to 115 words
Typical acoustic scenes consist of multiple superimposed sources, where some of them represent desired signals, but often many of them are undesired sources, e.g., interferers or noise. Hence, source separation and extraction, i.e., the estimation of the desired source signals based on observed mixtures, is one of the central problems in audio signal processing. A promising class of approaches to address such problems is based on Independent Component Analysis (ICA), an unsupervised machine learning technique. These methods enjoyed a lot of attention from the research community due to the small number of assumptions that have to be made about the considered problem. Furthermore, the resulting generalization ability to unseen acoustic conditions, their mathematical rigor and ... toggle 5 keywordsacoustic source separation – acoustic source extraction – independent component analysis – mm algorithm – spatial filtering
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