Abstract: 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.

Abstract: A signal processing system includes microphone units connected in series and a host device connected to one of the microphone units. Each of the microphone units has a microphone, a temporary storage memory, and a processing section for processing the sound picked up by the microphone. The host device has a non-volatile memory in which a sound signal processing program for the microphone units is stored. The host device transmits the sound signal processing program read from the non-volatile memory to each of the microphone units. Each of the microphone units temporarily stores the sound signal processing program in the temporary storage memory. The processing section performs a process corresponding to the sound signal processing program temporarily stored in the temporary storage memory and transmits the processed sound to the host device.

Abstract: A method for compensating for acoustic influence of a listening room on an acoustic output from an audio system including at least a left and a right loudspeaker, the method comprising determining a left frequency response and a right frequency response, designing a left compensation filter FL, and a right compensation filter FR, and during playback applying the left and right filters to left and right channel inputs. According to the invention, a target response in the listening position is simulated, and the left and right compensation filters are designed to filter transfer functions based on the simulated target function multiplied by an inverse of the left/right frequency responses. By relying on a simulated target instead of relying on an empirical approach, the general impact of a room can be more accurately captured by the target functions.

Abstract: Example embodiments provide a device that includes a housing backplate affixed to a housing which embodies one or more of a speaker and a microphone, a threaded channel affixed to the housing and extending perpendicular from the housing backplate, and a wall mount fitting with one or more securing tabs to hold the wall mount fitting to a wall mount plate.

Abstract: Systems and methods for protecting a loudspeaker from excessive excursion include an audio source, an adaptive excursion protection filter, an audio clipper, an inverse excursion protection filter, an amplifier and a loudspeaker. The system performs operations including receiving an audio signal, applying an excursion protection filter, the excursion protection filter adapting in real-time to one or more speaker conditions, clipping the audio signal, applying an inverse excursion protection filter, and amplifying, using an amplification circuit, the audio signal for output to the speaker.

Abstract: Systems, methods, apparatus, and articles of manufacture to control audio playback devices are disclosed. An example first playback device includes a speaker driver, a processor, and a computer readable medium including a set of instructions that, when executed by the processor, cause the first playback device to implement a method. The example method includes receiving, from a first audio information source, first audio information. The example method includes playing back the first audio information. The example method includes receiving, from a second audio information source, (i) a first message, and (ii) second audio information.

Abstract: A hearing protection system, a hearing protection device and related method, the hearing protection device comprising an earpiece device comprising a first connector, a first earpiece, and a second earpiece, the first earpiece comprising a first primary microphone and a first receiver wired to the first connector and the second earpiece comprising a second primary microphone and a second receiver wired to the first connector; and a processing device comprising a processor, an earpiece interface, and a wireless communication interface, wherein the processor is configured to receive a first microphone input signal from the first primary microphone; process the first microphone input signal for provision of a first primary output signal for the first receiver based on the first microphone input signal; receive a communication request from a communication device via the communication interface; and in response to receipt of the communication request, communicate with the communication device via the communication

Abstract: Embodiments described herein relate to earphone device supports and earphone support cases. In embodiments described herein, an earphone support is configured to be securely positioned over an earphone device. The earphone support includes a main body with a supporting element extending therefrom. The supporting element has a curvature shaped to follow a contour of the earphone device such that it clips onto to the earphone device. In additional embodiments described herein, an earphone support case is configured to securely store the earphone supports and mate with an earphone device case. The earphone support case has a main body coupled to a lid by a hinge. The main body includes a plurality of earphone support mounts. Each of the earphone support mounts are configured to support one of a plurality of earphone supports such that each earphone support is securely positioned within the earphone support case.

Abstract: Embodiments described herein relate to earphone device supports and earphone support cases. In embodiments described herein, an earphone support is configured to be securely positioned over an earphone device. The earphone support includes a main body with a supporting element extending therefrom. The supporting element has a curvature shaped to follow a contour of the earphone device such that it clips onto to the earphone device. In additional embodiments described herein, an earphone support case is configured to securely store the earphone supports and mate with an earphone device case. The earphone support case has a main body coupled to a lid by a hinge. The main body includes a plurality of earphone support mounts. Each of the earphone support mounts are configured to support one of a plurality of earphone supports such that each earphone support is securely positioned within the earphone support case.

Abstract: A system, method, and computer-readable medium are disclosed for performing an audio output detection operation. The audio detection operation includes: identifying a reference audio output associated with a manufacturing environment; calibrating a threshold noise level of the manufacturing environment; monitoring the manufacturing environment for an audio output above a predefined noise threshold; comparing the audio output above the predefined noise threshold with the reference audio output; and, present information associated with the audio output above the predefined noise threshold upon detection of a match between the audio output above the predefined noise threshold and the reference audio output.

Abstract: A system and method of providing a signal to wireless speakers. An audio stick connects to a source device and provides the audio signal to the wireless speakers. The audio stick combines the functionality of two separate devices: an audio receiver device and a transmitter device for the wireless speakers.

Abstract: An input signal representative of an undesired acoustic noise in a region is captured by one or more first sensors and processed to generate a cancellation signal. An output signal is generated based on the cancelation signal to cause one or more acoustic transducers to cancel, at least in part, the undesired acoustic noise in the region. A feedback signal representative of residual acoustic noise in the region is captured by one or more second sensors. A characteristic of each of the feedback signal, the cancellation signal, and a combination of the cancellation signal and the feedback signal is determined. One or more thresholds are compared to a ratio of (i) the characteristic of the combination of the cancellation signal and the feedback signal and (ii) a combination of the characteristic of the feedback signal and the characteristic of the cancellation signal to determine a convergence state.

Abstract: A wearable audio device that includes an electro-acoustic transducer for creating audio output and a magnetometer system comprising a magnetic field sensor with an output, a temperature sensor that is configured to determine an internal device temperature, a processor, and memory. The magnetometer system is configured to derive from the magnetic field sensor output a directional heading of the Earth's magnetic field. The magnetometer system is further configured to compensate the magnetic field sensor output, wherein the compensation is temperature dependent. The memory is configured to store temperature-dependent compensation information. The magnetometer system is further configured to use the temperature sensor output to retrieve compensation information from the memory in order to compensate the magnetic field sensor output at the current temperature.

Abstract: A differential microphone array includes a plurality of microphones situated on a substantially planar platform and a processing device, communicatively coupled to the plurality of microphones, to receive a plurality of electronic signals generated by the plurality of microphones responsive to a sound source and execute a minimum-norm beamformer to calculate an estimate of the sound source based on the plurality of electronic signals, wherein the minimum-norm beamformer is determined subject to a constraint that an approximation of a beampattern associated with the differential microphone array substantially matches a target beampattern.

Abstract: An example method of operation may include receiving audio data at one or more microphones disposed in a corresponding plurality of network devices, identifying amplitude values of the audio data at each of the plurality of network devices, and each of the amplitude values identified at each of the plurality of network devices are different from each other of the amplitude values, determining at each of the plurality of network devices a location of the audio data based on a direction and amplitude of the received audio data, modifying the audio data for output via a plurality of loudspeakers disposed in each of the plurality of network device, and outputting, via the plurality of loudspeakers, the modified audio data, and each loudspeaker outputs different versions of the modified audio data.

Abstract: A method and apparatus for processing audio signals. One system includes a communication device including a transceiver configured to send and receive audio data, and a microphone configured to convert sound waves to a first audio signal. A speaker is configured to convert received electrical signals to an acoustic output and is configured to convert sound waves to a second audio signal. An electronic processor connected to the microphone and the speaker is configured to receive the first audio signal from the microphone, receive the second audio signal from the speaker, determine a correlation value between the first audio signal and the second audio signal, and compare the correlation value to a correlation threshold. In response to the correlation value being below the correlation threshold, the electronic processor generates an output signal based on the first audio signal and the second audio signal, and transmits the output signal.

Abstract: Various implementations include microphone arrays and related speaker systems. In one implementation, a microphone array is mounted in a housing having a primary X axis, a primary Y axis perpendicular to the primary X axis, and a primary Z axis perpendicular to the primary X axis and the primary Y axis. The microphone array can include: a set of microphones positioned in a single plane perpendicular to the primary Z axis of the housing and axially asymmetric with respect to both the primary X axis of the housing and the primary Y axis of the housing. In some cases, all microphones in the set of microphones are stationary relative to the housing.

Abstract: There are disclosed automatic mixers and methods for creating a surround audio mix. A set of rules may be stored in a rule base. A rule engine may select a subset of the set of rules based, at least in part, on metadata associated with a plurality of stems. A mixing matrix may mix the plurality of stems in accordance with the selected subset of rules to provide three or more output channels.

Abstract: Systems and methods for using auditorily-induced vection (AIV) to enhance a person's attitude awareness are provided herein. In at least one embodiment, an auditory object is projected based on the orientation of the person or a vehicle and the projected auditory is provided to the person. By projecting the auditory object, the attitude of the person or the vehicle can be conveyed to the person to enhance the person's attitude awareness.

Abstract: Disclosed is an artificial intelligence hub including: a main body having a speaker for outputting sound; a communication module for wirelessly communicating with a surround ding device; a base arranged below the main body to support the main body; a cover coupled to a top of the main body, the cover having an upper surface for displaying a screen based on information exchanged via the communication module; and a grille having a vertically elongated cylindrical shape and provided with a plurality of through-holes therein, the main body being arranged within the grille, the grille being coupled at an upper end thereof to the cover housing and coupled at a lower end thereof to the base.