Using Mel-Frequency Cepstral Coefficients in Missing Data Technique
Zhang Jun, Sam Kwong, Wei Gang, Qingyang Hong · EURASIP Journal on Advances in Signal Processing · 2004
Filter bank is the most common feature being employed in the research of the marginalisation approaches for robust speech recognition due to its simplicity in detecting the unreliable data in the frequency domain. In this paper, we propose a hybrid approach based on the marginalisation and the soft decision techniques that make use of the Mel-frequency cepstral coefficients (MFCCs) instead of filter bank coefficients. A new technique for estimating the reliability of each cepstral component is also presented. Experimental results show the effectiveness of the proposed approaches.