SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND PROGRAM
First Claim
1. A sound processing device comprising:
- a first calculation unit configured to calculate a suppression gain of noise by using respective input signals input from a plurality of microphones;
an integration unit configured to obtain an integration gain by using a suppression gain of an acoustic echo and the suppression gain of the noise;
an application unit configured to apply the integration gain to one input signal among the plurality of input signals; and
a second calculation unit configured to calculate the suppression gain of the acoustic echo by using signals to which the integration gain is applied, output signals that are output to a replay device, and the one input signal.
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Accused Products
Abstract
A sound processing device includes a first calculation unit configured to calculate a suppression gain of noise by using respective input signals input from a plurality of microphones; an integration unit configured to obtain an integration gain by using a suppression gain of an acoustic echo and the suppression gain of the noise; an application unit configured to apply the integration gain to one input signal among the plurality of input signals; and a second calculation unit configured to calculate the suppression gain of the acoustic echo by using signals to which the integration gain is applied, output signals that are output to a replay device, and the one input signal.
9 Citations
8 Claims
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1. A sound processing device comprising:
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a first calculation unit configured to calculate a suppression gain of noise by using respective input signals input from a plurality of microphones; an integration unit configured to obtain an integration gain by using a suppression gain of an acoustic echo and the suppression gain of the noise; an application unit configured to apply the integration gain to one input signal among the plurality of input signals; and a second calculation unit configured to calculate the suppression gain of the acoustic echo by using signals to which the integration gain is applied, output signals that are output to a replay device, and the one input signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A sound processing method executed by a computer, comprising:
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calculating a suppression gain of noise by using respective input signals input from a plurality of microphones; obtaining an integration gain by using a suppression gain of an acoustic echo and the suppression gain of the noise; applying the integration gain to one input signal among the plurality of input signals; and calculating the suppression gain of the acoustic echo by using signals to which the integration gain is applied, output signals that are output to a replay device, and the one input signal.
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8. A non-transitory computer-readable recording medium storing a program that causes a computer to execute a process comprising:
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calculating a suppression gain of noise by using respective input signals input from a plurality of microphones; obtaining an integration gain by using a suppression gain of an acoustic echo and the suppression gain of the noise; applying the integration gain to one input signal among the plurality of input signals; and calculating the suppression gain of the acoustic echo by using signals to which the integration gain is applied, output signals that are output to a replay device, and the one input signal.
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Specification