A system for acoustic behavior feedback includes a light emitter and a microphone. Ambient sound data from the microphone may be compared to a threshold sound level, and one of a plurality of settings for the light emitter may be selected based at least in part on the comparison between the ambient sound data and threshold sound level. Each of the plurality of settings corresponds to a respective sound level alert as feedback for at least one person proximate the microphone and the light emitter.

A device for the acquisition and conditioning of a sound signal generated by a source of an internal combustion engine and comprising a box-shaped support body having a first measuring assembly and a second measuring assembly; wherein the first measuring assembly is provided with at least two first microphones which lie on a first plane and are configured for the detection of a first acoustic signal generated by the source along a first provenance direction; and wherein the second measuring assembly is provided with at least a second microphone arranged on a second plane configured for the detection of a second acoustic signal generated by the source along a second provenance direction different from the first provenance direction.

An information processing apparatus includes an obtaining unit configured to obtain an image captured by an imaging unit, a detection unit configured to detect target sound corresponding to a detection target from audio data obtained by a sound collection unit, an area estimation unit configured to estimate a detectable area where the target sound can be detected in an area indicated by the captured image on a basis of at least one of a directionality of the sound collection unit and a distance from a position of a target sound source that generates the target sound, and a generation unit configured to generate an area image indicating the detectable area.

An environmental analysis system and method. Remote sensing devices detect nonvisual information. One or more loudspeakers are each associated with one or more of the plurality of remote sensing devices to determine acoustic properties of an area. Another implementation relates to a method for environmental analysis where non-visual information is detected. The non-visual information is classified and is communicated to a server.

The invention provides an arrangement and a method for measuring the direct sound w.sub.rad radiated by an acoustical source under test (e.g. loudspeakers) under the influence of acoustic ambient noise sources Q.sub.1 and reflections at acoustical boundaries (e.g. room walls). An acquisition device measures a state variable p.sub.t(r.sub.m) of the sound field at a plurality of measurement points r.sub.m in a scanning range G.sub.m by a sensor and generates a scanned data set p.sub.G.sub.m.sub.,t.sup.Q.sup.0.sup.,Q.sup.1. Based on this data set an analyzer determines the coefficients C.sub.rad.sup.Q.sup.0 associated with expansion functions which are solutions of the wave equation. An identifier uses the scanned data set p.sub.G.sub.m.sub.,t.sup.Q.sup.0.sup.,Q.sup.1 for generating parameter information P for the analyzer which are the basis for separating the direct sound w.sub.rad from room reflections w.sub.ref and other waves w.sub.sec scattered at the surface of the source under test. An extrapolator predicts the state variable p.sub.rad.sup.Q.sup.0 of the direct sound w.sub.rad at any point outside the scanning range G.sub.m by using the coefficients C.sub.rad.sup.Q.sup.0 of the wave expansion.

Acoustic imaging systems can include an acoustic sensing array, an electromagnetic imaging tool, a display, and an audio device. A processor can receive data from the acoustic sensor array and the electromagnetic imaging tool to generate a display image combining acoustic image data and electromagnetic image data. Systems can include an audio device that receives an audio output from the processor and outputs audio feedback signals to a user. The audio feedback signals can represent acoustic signals from an acoustic scene. Systems can provide a display image to a user including acoustic image data, and a user can select an acoustic signal for which to provide a corresponding audio output to an audio device. Audio outputs and display images can change dynamically in response to a change in pointing of the acoustic sensing array, such as by changing a stereo audio output.

Systems and methods directed toward acoustic analysis can include a plurality of acoustic sensor arrays, each including a plurality of acoustic sensor elements, and a processor in communication with the plurality of acoustic sensor arrays. The processor can be configured to select one or more of the plurality of acoustic sensor arrays based on one or more input parameters, and generate acoustic image data representative of an acoustic scene based on received acoustic data from the selected one or more acoustic sensor arrays. Such input parameters can include distance information and/or frequency information. Different acoustic sensor arrays can share acoustic sensor elements in common or can be entirely separate from one another. Acoustic image data can be combined with electromagnetic image data from an electromagnetic imaging tool to generate a display image.

Systems can include an acoustic sensor array configured to receive acoustic signals, an illuminator configured to emit electromagnetic radiation, an electromagnetic imaging tool configured to receive electromagnetic radiation, a distance measuring tool, and a processor. The processor can illuminate the target scene via the illuminator, receive electromagnetic image data from the electromagnetic imaging tool representative of the illuminated scene, receive acoustic data from the acoustic sensor array, and receive distance information from the distance measuring tool. The processor can be further configured to generate acoustic image data of the scene based on the received acoustic data and received distance information and generate a display image comprising combined acoustic image data and electromagnetic image data. The processor can determine depths of various acoustic signals within a scene and generate a representation of the scene the shows the determined depths, including floorplan and volumetric representations.

Systems can include an acoustic sensor array configured to receive acoustic signals, an illuminator configured to emit electromagnetic radiation, an electromagnetic imaging tool configured to receive electromagnetic radiation, a distance measuring tool, and a processor. The processor can illuminate the target scene via the illuminator, receive electromagnetic image data from the electromagnetic imaging tool representative of the illuminated scene, receive acoustic data from the acoustic sensor array, and receive distance information from the distance measuring tool. The processor can be further configured to generate acoustic image data of the scene based on the received acoustic data and received distance information and generate a display image comprising combined acoustic image data and electromagnetic image data. The processor can determine depths of various acoustic signals within a scene and generate a representation of the scene the shows the determined depths, including floorplan and volumetric representations.

Some systems include an electromagnetic imaging tool configured to receive electromagnetic radiation, a communication interface, a processor in communication with the electromagnetic imaging tool and the communication interface, and a housing. Systems can include a first sensor head having a first plurality of acoustic sensor elements arranged in a first acoustic sensor array. The communication interface can provide communication between the processor and the sensor head via wired or wireless communication. The communication interface can comprise a docking port in communication with the processor and configured to removably receive a corresponding docking mechanism of the first sensor head. Some systems may include a second sensor head having a second plurality of acoustic sensor elements. The second sensor head may be interchangeably connectable to the communication interface and/or the first sensor head.