Speech recognition device with reference transformation means

Details Speech recognition device with reference transformation means Speech recognition device with reference transformation means

2006-12-05

2006-12-05

Azad, Abul K. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

Reexamination Certificate

active

07146317

ABSTRACT:
A speech recognition device (8), to which can be applied over a first receive channel (21) and a second receive channel (25, 28) speech information (SI) that is colored by the respective receive channel (21, 25, 28), comprises reference storage means (36) for storing reference information (RI1) that features the type of pronunciation of words by a plurality of reference speakers and receive channel adaptation means (30, 38, 44) for adapting the stored reference information (RI, ARI) to a first or second receive channel (21, 25, 28) used by a user and user adaptation means (37) for adapting the stored reference information (RI1, RI2, RI3) to the type of pronunciation of words by the user of the speech recognition device (8) and speech recognition means (29) for recognizing text information (TI) to be assigned to the fed speech information (SI), while reference information (ARI1, ARI2, ARI3) adapted by the receive channel adaptation means (30, 38, 44) and by the user adaptation means (37) is evaluated, where now the receive channel adaptation means (30, 38, 44) include reference transformation means (T1-2, T1-3, T2-3) which are arranged for transforming first reference information (RI1, ARI1) adapted to the first receive channel (21) into second reference information (RI2, RI3, ARI2, ARI3) adapted to the second receive channel (25, 28) in accordance with a transformation matrix (T1-2, T1-3, T2-3) and where the adapted first reference information (RI1, ARI1) to be transformed by the reference transformation means (T1-2, T1-3, T2-3) may, but need not, already have been adapted to the user by the user adaptation means (37).

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