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Fig. 3 | EURASIP Journal on Audio, Speech, and Music Processing

Fig. 3

From: An improved i-vector extraction algorithm for speaker verification

Fig. 3

A brief figure description to FA-based i-vector adaptation in sparse training data. Different from MAP adaptation in Fig. 2, in the i-vector framework, all components are adapted at the same weight. The adapted mean vectors of upper and lower left components are credible because we indeed have relative speaker frames, but the adaptation of lower right component is questionable because it suffers from a shortage of speaker frames, whose first-order Baum-Welch statistics is inaccurate

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