Signal processing device and signal processing method
AssigneePanasonic Intellectual Property Corporation of America
InventorShinichi YUZURIHA
Life of this patent
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Abstract
Included are a first obtainer which obtains a first signal output from a first microphone, a second obtainer which obtains a second signal output from a second microphone installed in a position different from a position where first microphone is installed, a delayer which delays the second signal, a mixed sounds estimator which estimates noises mixed in the first signal on the basis of the second signal delayed by the delayer, and an eraser which erases the noises from the first signal, the noises being estimated by the mixed sounds estimator.
Claims4
A signal processing device, comprising:
- a first obtainer which obtains a first signal output from a first microphone;
- a second obtainer which obtains a second signal output from a second microphone installed in a position different from a position where the first microphone is installed;
- a delayer which delays the second signal;
- a mixed sounds estimator which estimates noises mixed in the first signal on a basis of the second signal delayed by the delayer;
- and
- an eraser which erases the noises from the first signal, the noises being estimated by the mixed sounds estimator.
A signal processing method, comprising:
- obtaining a first signal output from a first microphone;
- obtaining a second signal output from a second microphone installed in a position different from a position where the first microphone is installed;
- delaying the second signal;
- estimating noises mixed in the first signal on a basis of the second signal delayed by the delaying;
- and
- erasing the noises from the first signal, the noises being estimated in the estimating.
Dependencies are inferred from the claim text.