Abstract: A sound signal processing device, a sound signal processing method, and a sound signal processing program can remove echo signals included in input signals from a plurality of microphones with a simple circuit configuration are provided. The present device 1 includes an output part 20 that outputs a reception signal s2, an input part 30 that combines signals input from each of a plurality of microphones 3 and generates a transmission signal s4, wherein the microphones 3 collect an echo component of the reception signal and voice of a speaker and generate an echo signal es corresponding to the echo component and a sound signal s1 corresponding to the voice of the speaker, a removal signal generator 70 that generates a removal signal s5 removing the echo signal included in the transmission signal based on a filter coefficient F, a controller 50 that calculates the filter coefficient, and a removal part 80 that generates an echo removal signal s6 based on the transmission signal and the removal signal.

Abstract: The present invention provides a sound signal processing device that precisely detects various kinds of noises and that does not block output of voice signals even when detecting noise during the output of the voice signals. The sound signal processing device according to the present invention comprises: an input part 10; an input signal determination part 20 that determines whether an input signal from the input part is present; a noise detection part 30 that detects noise included in the input signal from the input part; an output part 80 that outputs the input signal as an output signal; an output switching part 52 that performs switching between an output state in which the output part outputs the output signal and a non-output state in which the output part does not output the output signal; and a control part 60 that controls the switching performed by the output switching part.

Abstract: The present invention provides a sound signal processing device that precisely detects various kinds of noises and that does not block output of voice signals even when detecting noise during the output of the voice signals. The sound signal processing device according to the present invention comprises: an input part 10; an input signal determination part 20 that determines whether an input signal from the input part is present; a noise detection part 30 that detects noise included in the input signal from the input part; an output part 80 that outputs the input signal as an output signal; an output switching part 52 that performs switching between an output state in which the output part outputs the output signal and a non-output state in which the output part does not output the output signal; and a control part 60 that controls the switching performed by the output switching part.

Abstract: A sound signal processing device, a sound signal processing method, and a sound signal processing program can remove echo signals included in input signals from a plurality of microphones with a simple circuit configuration are provided. The present device 1 includes an output part 20 that outputs a reception signal s2, an input part 30 that combines signals input from each of a plurality of microphones 3 and generates a transmission signal s4, wherein the microphones 3 collect an echo component of the reception signal and voice of a speaker and generate an echo signal es corresponding to the echo component and a sound signal s1 corresponding to the voice of the speaker, a removal signal generator 70 that generates a removal signal s5 removing the echo signal included in the transmission signal based on a filter coefficient F, a controller 50 that calculates the filter coefficient, and a removal part 80 that generates an echo removal signal s6 based on the transmission signal and the removal signal.