Abstract: A behavior modification device includes processing circuitry configured to: acquire sensing information of a sensor to observe a monitoring area; identify behavior of an organism to be threatened present in the monitoring area on a basis of the acquired sensing information; determine a parameter of a stimulus to be given to the organism on a basis of the identified behavior; and generate stimulus data for generating the stimulus on a basis of the determined parameter and output the stimulus data to an actuator for generating a stimulus.

Abstract: A wave transmission control device to control a transmitter to form a sound field in water includes processing circuitry to, when detection information is input from a sensor to detect an organism in water, determine a characteristic of the organism and a distribution state for every characteristic using the detection information, to acquire sound information based on the characteristic by referring to a database in which a characteristic of an organism and sound information are associated with each other, and to determine a sound output condition in such a manner that a distribution state changes from the distribution state which is set for the characteristic received before processing starts and to cause the transmitter to output a sound based on sound information using the output condition.

Abstract: A floating matter guidance control device includes a floating matter information obtaining unit for obtaining floating matter information about floating matter on a water surface; a vibration determining unit for determining a frequency of vibration generated by a vibration generating device for generating a water surface wave by vibrating a water surface, on the basis of the floating matter information obtained by the floating matter information obtaining unit; and a vibration generating device control unit for controlling the vibration generating device so that the vibration generating device vibrates at the frequency determined by the vibration determining unit.

Abstract: A microphone array includes first and second microphones (Ma, Mb) placed on a first axis (f), a third microphone (Mc) placed on a plane (fg) formed by the first axis and a second axis (g) and at a position other than on the first axis, and a fourth microphone (Md) placed on a third axis (h), and at a position other than on the plane formed by the first and the second axes, and a processing circuit generates signals (Cx, Cy, Cz) having bidirectionality in first, second and third mutually perpendicular directions (x, y, z), and an omnidirectional signal (Cw), based on signals (Ba to Bd) obtained by sound collection by means of the first to fourth microphones. It is possible to generate signals having bidirectionality in mutually perpendicular directions, and an omnidirectional signal, without using special microphones, and without excessive restrictions with regard to the placement of the microphones.

Abstract: A microphone array includes first and second microphones (Ma, Mb) placed on a first axis (f), a third microphone (Mc) placed on a plane (fg) formed by the first axis and a second axis (g) and at a position other than on the first axis, and a fourth microphone (Md) placed on a third axis (h), and at a position other than on the plane formed by the first and the second axes, and a processing circuit generates signals (Cx, Cy, Cz) having bidirectionality in first, second and third mutually perpendicular directions (x, y, z), and an omnidirectional signal (Cw), based on signals (Ba to Bd) obtained by sound collection by means of the first to fourth microphones. It is possible to generate signals having bidirectionality in mutually perpendicular directions, and an omnidirectional signal, without using special microphones, and without excessive restrictions with regard to the placement of the microphones.

Abstract: Including an invariant interval deciding unit (1) to decide whether operation of a detection target is in an invariant interval; a correction parameter generator (3) to generate, when decided that the operation is in the invariant interval, a correction parameter for correcting an observation signal in a time interval outside the invariant interval from an observation signal obtained from the operation sound in the invariant interval; a feature extracting unit (4) to extract, when decided that the operation is in the time interval outside the invariant interval, a feature value of the operation sound of the detection target in the time interval outside the invariant interval from the observation signal of the detection target in the time interval outside the invariant interval and the correction parameter; and an abnormal sound deciding unit (5) to decide from the feature value extracted whether an abnormal sound occurs in the detection target.