Acoustic processing device, acoustic processing method, and non-transitory computer-readable medium

An acoustic processing method executed by an acoustic processing device, the method comprising:

• separating a first acoustic signal and a second acoustic signal from a noisy acoustic signal acquired by optical fiber sensing and on which noise is superimposed using a separation technique in which same residual component is included in each signal after the separation, and
• generating a noise suppressed acoustic signal in which noise is suppressed from the noisy acoustic signal using the residual components included in the first acoustic signal and the second acoustic signal, and outputting the generated noise suppressed acoustic signal.

A non-transitory computer-readable medium storing a program for causing a computer to execute,

• a procedure of separating a first acoustic signal and a second acoustic signal from a noisy acoustic signal acquired by optical fiber sensing and on which noise is superimposed using a separation technique in which same residual component is included in each signal after the separation, and
• a procedure of generating a noise suppressed acoustic signal in which noise is suppressed from the noisy acoustic signal using the residual components included in the first acoustic signal and the second acoustic signal, and outputting the generated noise suppressed acoustic signal.