An Analysis of Signal Processing by Using Independent Component Analysis for Tangible Acoustic Interfaces

• Main Authors: Jen-Chieh Lo, 羅仁傑
• Other Authors: Tzren-Ru Chou
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/58433477187861125309

碩士 === 國立臺灣師範大學 === 圖文傳播學系 === 101 === In this study, we tried to use independent component analysis (ICA) to separate the mixed signal caused by simultaneous touch events happened on a tangible acoustic interface. Being in accord with the processing steps of ICA, the procedures we proposed can be divided into (1) multiple audio inputs for ICA processing, (2) single audio input with frequency segmentation for ICA processing, (3) single audio input with frequency segmentation and higher-order mixed for ICA processing. Experimental results show that, using frequency segmentation for non-real time signal analysis on tangible acoustic interface has remarkable signal-separating effect. It also proves an idea that independent component analysis can be used on tangible acoustic interface for mixed-signal separation. Keywords : independent component analysis, tangible acoustic interface, audio signal separation