An acoustic vector sensor and a method of detecting an acoustic vector are described. An object suspended in the fluid medium by a non-contact support structure. The object and the non-contact support structure are configured so that the object moves in response to any disturbance of the fluid by an acoustic wave; The non-contact support structure of the object comprises a plurality of solenoids that each produce a magnetic field in a fluid medium. A measurement measures movement of the object. A processing device determines an acoustic intensity vector of the acoustic wave based on the measured movement of the object.

An acoustic vector sensor and a method of detecting an acoustic vector are described. An object suspended in the fluid medium by a non-contact support structure. The object and the non-contact support structure are configured so that the object moves in response to any disturbance of the fluid by an acoustic wave; The non-contact support structure of the object comprises a plurality of solenoids that each produce a magnetic field in a fluid medium. A measurement measures movement of the object. A processing device determines an acoustic intensity vector of the acoustic wave based on the measured movement of the object.

Systems, methods, tangible non-transitory computer-readable media, and devices associated with detecting and locating sounds are provided. For example, sound data associated with sounds can be received. The sounds can include source sounds and background sounds received by microphones. Based on the sound data, time differences can be determined. Each of the time differences can include a time difference between receipt of a source sound and receipt of a background sound at each of the microphones respectively. A set of the source sounds can be synchronized based on the time differences. An amplified source sound can be generated based on a combination of the synchronized set of the source sounds. A source location of the source sounds can be determined based on the amplified source sound. Based on the source location, control signals can be generated in order to change actions performed by an autonomous vehicle.

An acoustic vector sensor and a method of detecting an acoustic vector are described. An object suspended in the fluid medium by a non-contact support structure. The object and the non-contact support structure are configured so that the object moves in response to any disturbance of the fluid by an acoustic wave; The non-contact support structure of the object comprises a plurality of solenoids that each produce a magnetic field in a fluid medium. A measurement measures movement of the object. A processing device determines an acoustic intensity vector of the acoustic wave based on the measured movement of the object.

An acoustic vector sensor and a method of detecting an acoustic vector are described. An object suspended in the fluid medium by a non-contact support structure. The object and the non-contact support structure are configured so that the object moves in response to any disturbance of the fluid by an acoustic wave; The non-contact support structure of the object comprises a plurality of solenoids that each produce a magnetic field in a fluid medium. A measurement measures movement of the object. A processing device determines an acoustic intensity vector of the acoustic wave based on the measured movement of the object.

Aspects of the present invention disclose a method for preventing adversarial audio attacks through detecting and isolating inconsistencies utilizing beamforming techniques and IoT devices. The method includes one or more processors identifying an audio command received by a listening device. The method further includes determining a source location of the audio command utilizing a sensor array of the listening device. The method further includes determining a location of a user in relation to the listening device based on data of an Internet of Things (IoT) device. The method further includes determining an inconsistency between the determines source location and the determined location of the user based at least in part on data of the sensor array and data of the IoT device.

Systems, methods, tangible non-transitory computer-readable media, and devices associated with detecting and locating sounds are provided. For example, sound data associated with sounds can be received. The sounds can include source sounds and background sounds received by microphones. Based on the sound data, time differences can be determined. Each of the time differences can include a time difference between receipt of a source sound and receipt of a background sound at each of the microphones respectively. A set of the source sounds can be synchronized based on the time differences. An amplified source sound can be generated based on a combination of the synchronized set of the source sounds. A source location of the source sounds can be determined based on the amplified source sound. Based on the source location, control signals can be generated in order to change actions performed by an autonomous vehicle.

An underwater ultrasonic device includes at least one first ultrasonic transducer and at least one second ultrasonic transducer. The first ultrasonic transducer is configured to transmit a plurality of ultrasonic signals and the second ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals. The first ultrasonic transducer and the second ultrasonic transducer are disposed with respect to each other. One of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear and another one of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear or straight linear.

An underwater ultrasonic device includes at least one first ultrasonic transducer and at least one second ultrasonic transducer. The first ultrasonic transducer is configured to transmit a plurality of ultrasonic signals and the second ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals. The first ultrasonic transducer and the second ultrasonic transducer are disposed with respect to each other. One of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear and another one of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear or straight linear.

Disclosed is a system for selective acoustic sensing, capture, sampling and monitoring. One or more acoustic phase array assemblies, each including a set of microphones and digital processing circuits, wherein at least one of the phase array assemblies may include circuits to facilitate the generation of two or more acoustic beams, in the same or in different directions, concurrently. The outputs of each of the two or more acoustic beams are direction specific audio signals, wherein the direction of each direction specific audio signal corresponds to the direction of the respective beamforming process which generated that direction specific audio signal.