11th Annual Conference of the International Speech Communication Association

Makuhari, Chiba, Japan
September 26-30. 2010

Invariant Integration Features Combined with Speaker-Adaptation Methods

Florian Müller, Alfred Mertins

Universität zu Lübeck, Germany

Speaker-normalization and -adaptation methods are essential components of state-of-the-art speech recognition systems nowadays. Recently, so-called emph{invariant integration features} were presented which are motivated by the theory of invariants. While it was shown that the integration features outperform MFCCs when used with a basic monophone recognition system, it was left open, if their benefits still can be observed when a more sophisticated recognition system with speaker-normalization and/or speaker-adaptation components is used. This work investigates the combination of the integration features with standard speaker-normalization and -adaptation methods. We show that the integration features benefit from adaptation methods and significantly outperform MFCCs in matching, as well as in mismatching training-test conditions.

Full Paper

Bibliographic reference.  Müller, Florian / Mertins, Alfred (2010): "Invariant integration features combined with speaker-adaptation methods", In INTERSPEECH-2010, 2622-2625.