Comparison between SIMO-ICA with least squares criterion and SIMO-ICA with information-geometric learning

High-fidelity blind source separation (BSS) using SingleInput Multiple-Output (SIMO)-model-based Independent Component Analysis (SIMO-ICA) is now being studied by the authors. This paper describes a comparison of two types of SIMO-ICAs, SIMO-ICA-LS and SIMOICA-IG, with different constraints, and gives explicit discussion on the sensitivity of the parameters settings in the methods. In order to discuss the difference, the sourceseparation experiments using two SIMO-ICAs are carried out under the same real acoustic conditions. The experiment results reveal that SIMO-ICA-IG outperforms SIMO-ICA-LS, and the parameter setting in SIMO-ICAIG does not depend on the source signals’ properties compared with that of SIMO-ICA-LS.