公开(公告)号：US06999925B2

公开(公告)日：2006-02-14

申请号：US10007990

申请日：2001-11-13

申请人： Volker Fischer ,  Siegfried Kunzmann ,  Eric-W. Janke ,  A. Jon Tyrrell

发明人： Volker Fischer ,  Siegfried Kunzmann ,  Eric-W. Janke ,  A. Jon Tyrrell

IPC分类号： G10L15/06 ,  G10L15/08 ,  G10L15/27 ,  G10L15/18

CPC分类号： G10L15/07

摘要： The present invention provides a computerized method and apparatus for automatically generating from a first speech recognizer a second speech recognizer which can be adapted to a specific domain. The first speech recognizer can include a first acoustic model with a first decision network and corresponding first phonetic contexts. The first acoustic model can be used as a starting point for the adaptation process. A second acoustic model with a second decision network and corresponding second phonetic contexts for the second speech recognizer can be generated by re-estimating the first decision network and the corresponding first phonetic contexts based on domain-specific training data.