ICA based Noise Reduction in Mobile Phone Speech Communications

Speech signals captured during video conferencing, mobile phones, teleconferencing etc., include noise in speech signals. Many algorithms exist for noise reduction, such as, time-varying adaptive filter and multiband adaptive gain control etc. Independent Component Analysis (ICA) is a statistical computational technique used for the cancellation of ambient noise in the selected part of a speech signal. Background noise reduction is a good application in human-machine interaction. The adverse impact on a mobile phone call is noisy location. Hence, to improve speech quality in mobile phones, noise decreasing techniques are proposed. This study has presented a literature on noise reduction techniques and algorithms and advantages of it.