Preserving phase shift in spatial filtering
AssigneeLenovo (Singapore) Pte. Ltd.
InventorsJianbang Zhang, Jian Li, John Weldon Nicholson, Steven Richard Perrin
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Abstract
For preserving phase shift in spatial filtering is disclosed, an electronic device includes a microphone array. A filtering module spatially filters a plurality of received audio signals from the microphone array to increase the signal-to-noise ratio in one or more corresponding output audio signals. A phase module preserves a phase shift of at least one received audio signal in the corresponding output audio signal.
Claims20
An apparatus comprising:
- an electronic device comprising a microphone array;
- a filtering module spatially filtering a plurality of received audio signals from the microphone array to increase the signal-to-noise ratio in one or more corresponding output audio signals;
- and
- a phase module preserving a phase shift of at least one received audio signal in the corresponding output audio signal, wherein the filtering module and the phase module comprise one or more of semiconductor hardware and a memory storing machine readable code and a processor executing the machine readable code.
A method comprising:
- spatially filtering a plurality of received audio signals to increase the signal-to-noise ratio in one or more corresponding output audio signals;
- and
- preserving a phase shift of at least one received audio signal in the corresponding output audio signal.
A program product comprising a non-transitory computer readable storage medium storing machine readable code executable by a processor to perform:
- spatially filtering a plurality of received audio signals to increase the signal-to-noise ratio in one or more corresponding output audio signals;
- and
- preserving a phase shift of at least one received audio signal in the corresponding output audio signal.
Dependencies are inferred from the claim text.