|
KMID : 1022420140060030149
|
|
Phonetics and Speech Sciences
2014 Volume.6 No. 3 p.149 ~ p.153
|
|
|
Frequency Bin Alignment Using Covariance of Power Ratio of Separated Signals in Multi-channel FD-ICA
|
|
Quan Xing Ri
Bae Keun-Sung
|
|
|
Abstract
|
|
|
|
In frequency domain ICA, the frequency bin permutation problem falls off the quality of separated signals. In this paper,we propose a new algorithm to solve the frequency bin permutation problem using the covariance of power ratio of separatedsignals in multi-channel FD-ICA. It makes use of the continuity of the spectrum of speech signals to check if frequency binpermutation occurs in the separated signal using the power ratio of adjacent frequency bins. Experimental results have shownthat the proposed method could fix the frequency bin permutation problem in the multi-channel FD-ICA.
|
|
|
KEYWORD
|
|
|
BSS, independent component analysis, frequency bin permutation, power ratio
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|