G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 21/02 (2006.01)
Patent
CA 2518684
The present invention relates to a system for speech signal processing with noise reduction, comprising a microphone array comprising at least two microphones to detect microphone signals, a pre-processing means connected to the microphone array to receive microphone signals comprising means configured to perform a time delay compensation of the microphone signals to obtain pre-processed signals, a first signal processing means connected to the pre-processing means to receive the pre-processed signals comprising a means configured to generate at least one noise reference signal, in particular, one noise reference signal for each microphone signal, second signal processing means connected to the pre-processing means to receive the pre-processed signals comprising an adaptive beam former to obtain a beamformed signal, and an adaptive noise cancelling means configured to reduce noise of the beamformed signal on the basis of the at least one noise reference signal.
Buck Markus
Haulick Tim
Hetherington Phillip
Zakarauskas Pierre
Harman Becker Automotive Systems Gmbh
Nuance Communications Inc.
Oyen Wiggs Green & Mutala Llp
Qnx Software Systems (wavemakers) Inc.
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