Cerence Operating Company

Holger Quast

Oliver Van Porten

Markus Buck

Tim Haulick

Tobias Wolff

Munir Nikolai Alexander Georges

Friedrich Faubel

Martin Roessler

Markus Funk

Jonas Jungclaussen

Emanuele Dalmasso

Andreas Kellner

Gaetan Martens

Julien Prémont

Marcus Groeber

A method for applying a watermark signal to a speech signal to prevent unauthorized use of speech signals, the method may include receiving an original speech signal; determining a corresponding spectrogram of the original speech signal; selecting a phase sequence of fixed frame length and uniform distribution; and generating an encoded watermark signal based on the corresponding spectrogram and phase sequence.

Tamper-robust watermarking of speech signals

According to some aspects, a system for detecting a designated wake-up word is provided, the system comprising a plurality of microphones to detect acoustic information from a physical space having a plurality of acoustic zones, at least one processor configured to receive a first acoustic signal representing the acoustic information received by the plurality of microphones, process the first acoustic signal to identify content of the first acoustic signal originating from each of the plurality of acoustic zones, provide a plurality of second acoustic signals, each of the plurality of second acoustic signals substantially corresponding to the content identified as originating from a respective one of the plurality of acoustic zones, and performing automatic speech recognition on each of the plurality of second acoustic signals to determine whether the designated wake-up word was spoken.

Techniques for spatially selective wake-up word recognition and related systems and methods

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Munich, Georgia

Holger Quast