An external calibrating device (10) for a measurement device, which may be an acoustic camera. The calibrating device (10) includes a sound source (11) and a light source (12), which are preferably pointed to the same direction. This direction can be a horizontal direction, where the sources (11, 12) locate on the same vertical side surface of the calibrating device (10). An IR LED can be used as the light source (12). The measurement device may instruct a user how to place and align the measurement device during the calibration process. Guidance is given by instructions, volume range information, and focusing lines on the screen. When the instructions are fulfilled, the user may acknowledge the finished calibration process.

A fitting agent for a hearing device and related method is disclosed, wherein the fitting agent is configured to initialize a user model comprising a user preference function; obtain a primary test setting for the hearing device; obtain a secondary test setting for the hearing device; present the primary test setting and the secondary test setting to a user; detect a user input of a preferred test setting indicative of a preference for either the primary test setting or the secondary test setting; and update the user model based on hearing device parameters of the preferred test setting, wherein to obtain the secondary test setting comprises: obtain a candidate set of candidate test settings; determine an uncertainty parameter for each candidate test setting; and select the secondary test setting from the candidate set of candidate test settings based on the uncertainty parameters of the candidate test settings.

Embodiments of the present disclosure are directed to systems and methods for improving functional hearing. In one aspect, the system may include a housing configured to fit within an ear of a user. The housing may include a speaker, an amplifier, a transmitter, and a power supply. Additionally, the housing may include a memory storing instructions and at least one processor configured to execute instructions. The instructions may include receiving an audio input and amplifying the audio input. The instructions may include outputting the amplified audio input from a speaker. The instructions may include converting the audio input into a visual representation of the audio input and transmitting the visual representation to at least one display.

Example techniques relate to playback based on acoustic signals in a system including a first network device and a second network device. A first network device may detect a presence of a user using a camera and/or infrared sensors. The first network device sends, in response to detecting the presence of the user, a particular signal via the first network interface. The second network device receives data corresponding to the particular signal and plays back an audio output corresponding to the particular signal.

A method and apparatus to assist people with hearing loss. An augmented reality device with microphones and a display captures speech of a person talking to the wearer of the device and displays real-time captions in the wearer's field of view, while optionally not captioning the wearer's own speech. The microphone system in this apparatus inverts the use of microphones in augmented reality devices by analyzing and processing environmental sounds while ignoring the wearer's own voice.

Various implementations include portable speakers with dynamic display characteristics. In some particular aspects, a portable speaker includes an enclosure housing: at least one electro-acoustic transducer for providing an audio output; a processor coupled with the at least one transducer; an audio input module coupled with the processor for receiving audio input signals; and a battery configured to power the at least one transducer, the processor, and the audio input module; an input channel for receiving a hard-wired audio input connection; at least one wireless input channel for receiving an audio input from a source device via a wireless connection; and a display on the enclosure coupled with the processor, wherein the processor adjusts an orientation of the display between a first orientation and a second orientation in response to detecting a change in orientation of the portable speaker.

A system for providing an audio interface at a mobile device is provided. The mobile device includes an interface programmed detect a loudspeaker system. The mobile device presents, via a user interface, a display screen to receive user input of sweet-spot commands. The mobile devices send sweet-spot parameters to the loudspeaker system in response to the sweet-spot commands.

An abnormal sound diagnosis system includes a sound acquisition unit configured to acquire data of a sound generated from an object, an inquiry information acquisition unit configured to acquire inquiry information regarding an abnormal sound generated in the object, an arithmetic processing unit configured to acquire a spectrogram indicating a relationship among a time, a frequency, and sound pressure from the data of the sound, an extraction unit configured to acquire, based on the inquiry information acquired by the inquiry information acquisition unit, an inferred frequency range of the abnormal sound generated in the object and extract an extracted range corresponding the inferred frequency range of the spectrogram acquired by the arithmetic processing unit, and a diagnosis unit configured to diagnose, based on the extracted range of the spectrogram extracted by the extraction unit, a cause of the abnormal sound generated in the object.

A device and method for detecting water leaks in building structures relies on sonic and spectral density analyses of sound distortions caused by a subsurface water leak. Structurally, the device includes a microphone connected with a sound amplifier. Also included is a head set and/or a sound analyzer which are respectively connected with the amplifier. In this combination, the microphone is moved across a surface in the building structure to detect an audio signal that is indicative of a subsurface water leak. This audio signal is then aurally evaluated using the headset to identify a sound distortion relative to white noise, or it is visually evaluated by reference to a spectral density presentation of frequencies on the sound analyzer. Operationally, a location of the water leak is determined by moving the microphone along a search pattern of trace lines over the surface being searched until there is a meaningful response.

Examples described herein involve validating motion of a microphone during calibration of a playback device. An example implementation involves a mobile device detecting, via one or more microphones, audio signals emitted from one or more playback devices as part of a calibration process. After the one or more playback devices emit the audio signals, the mobile device determines whether the detected audio signals indicate that sufficient horizontal translation of the mobile device occurred during the calibration process. When the detected audio signals indicate that insufficient horizontal translation occurred, the mobile device displays a prompt to move the mobile device more while the one or more playback devices emit one or more additional audio signals as part of the calibration process. When the detected audio signals indicate that sufficient horizontal translation occurred, the mobile device calibrates the one or more playback devices with a calibration based on the detected audio signals.