Nuance Communications, Inc.

Harman Becker Automotive Systems Gmbh

Matthias Schulz

Franz Gerl

Markus Buck

Gerhard Uwe Schmidt

Tim Haulick

Tobias Herbig

Markus Schwarz

Christian Hillebrecht

Udo Haiber

Marc Biedert

Gerhard Schmidt

Chistian Hillebrecht

A method for detecting barge-in in a speech dialog system comprising determining whether a speech prompt is output by the speech dialog system, and detecting whether speech activity is present in an input signal based on a time-varying sensitivity threshold of a speech activity detector and/or based on speaker information, where the sensitivity threshold is increased if output of a speech prompt is determined and decreased if no output of a speech prompt is determined. If speech activity is detected in the input signal, the speech prompt may be interrupted or faded out. A speech dialog system configured to detect barge-in is also disclosed.

Detecting barge-in in a speech dialogue system

The invention provides a speech recognition method for selecting a combination of list elements via a speech input, wherein a first list element of the combination is part of a first set of list elements and a second list element of the combination is part of a second set of list elements, the method comprising the steps of receiving the speech input, comparing each list element of the first set with the speech input to obtain a first candidate list of best matching list elements, processing the second set using the first candidate list to obtain a subset of the second set, comparing each list element of the subset of the second set with the speech input to obtain a second candidate list of best matching list elements, and selecting a combination of list elements using the first and the second candidate list.

Speech recognition method for selecting a combination of list elements via a speech input

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Westerstetten, Germany

Matthias Schulz