Abstract: In an aspect, provided are methods and systems for performing a series of acoustic tests in a variety of testing environments comprising several types of construction assemblies. Prior to performing each acoustic test, a plurality of audio parameters corresponding to a given construction assembly can be used to configure an electronic device that captures audio produced by the acoustic test with a microphone and stores the captured audio as a computer sound file. Further, an acoustic testing device can be used during the acoustic test to gather data indicative of a result of the acoustic test. The result can then be mapped, along with information related to the given construction assembly, to the computer sound file.

Abstract: A sports board apparatus includes a sports board and a sound module. The sports board includes a lower face for sliding and an upper face for supporting a user. The sound module is connected to the sports board, and includes a power supply and a circuit electrically connected to the power supply. The circuit comprises a vibration sensor, an audio controller electrically connected to the vibration sensor, and a speaker electrically connected to the audio controller. The audio controller actuates the speaker to provide sound like that from a vehicle in operation when the vibration sensor senses vibration.

Abstract: Provided is a user command processing method and system for adjusting an output volume of a sound to be output on the basis of an input volume of a received voice input. A user command processing method may comprise the steps of: receiving a voice input from a user; measuring an input volume of the received voice input; and adjusting an output volume of a sound to be output in response to the received voice input, according to the measured input volume.

Abstract: A sound processing device includes: a distance information obtaining unit which obtains information about a first distance between stereo microphones and information about a second distance between stereo loudspeakers; and a signal processing unit which processes a stereophonic audio signal collected by the stereo microphones according to the first distance and the second distance to adjust a stereo effect provided when the stereophonic audio signal is reproduced from the stereo loudspeakers.

Abstract: A shared communication channel allows for the transmitting and receiving audio content between multiple users. Each user is associated with a headset configured to transmit and receive audio data to and from headsets of other users. After the headset of a first user receives audio data corresponding to a second user, the headset spatializes the audio data based upon the relative positions of the first and second users such that when the audio data is presented to the first user, the sounds of the audio data appear to originate at a location corresponding to the second user. The headset reinforces the audio data based upon a deviation between the location of the second user and a gaze direction of the first user, allowing for the first user to more clearly hear audio data from other users that they are paying attention to.

Abstract: An audio processing device includes: a sound source localizing unit configured to determine a localized sound source direction, which is a direction of a sound source, on the basis of audio signals of a plurality of channels acquired from M (here, M is an integer equal to or greater than “3”) sound receiving units of which positions are different from each other; and a sound source position estimating unit configured to, for each set of two sound receiving units, estimate a midpoint of a segment perpendicular to both of half lines directed in estimated sound source directions, which are directions from the sound receiving units to an estimated sound source position of the sound source, as the estimated sound source position.

Abstract: A system comprises a wearable item comprising a film of an electrically active material configured to exhibit one or more electrical properties that vary responsive to a movement or gesture performed by a user wearing the wearable item and a controller configured to read the one or more electrical properties of the electrically active material and to activate a control function of an electronic device responsive to detecting a predetermined pattern exhibited by the one or more electrical properties of the electrically active material.

Abstract: A sound output device includes: a first imparter that imparts first sound characteristics to an input signal; a loudspeaker that outputs a sound based on a signal obtained by impartation of the first sound characteristics to the input signal; a first microphone that receives a sound based on the sound output by the loudspeaker; a determiner that obtains difference characteristics between frequency characteristics of the input signal and frequency characteristics of a signal derived from the sound received by the first microphone, to determine whether the difference characteristics fall within a predetermined range from target sound characteristics; and an instruction indicator that outputs an instruction for output of an alert if a result of the determination by the determiner is negative, and the first imparter corrects the first sound characteristics based on the difference characteristics if a result of the determination by the determiner is positive.

Abstract: A method of presenting an audio signal to a user of a mixed reality environment is disclosed. According to examples of the method, an audio event associated with the mixed reality environment is detected. The audio event is associated with a first audio signal. A location of the user with respect to the mixed reality environment is determined. An acoustic region associated with the location of the user is identified. A first acoustic parameter associated with the first acoustic region is determined. A transfer function is determined using the first acoustic parameter. The transfer function is applied to the first audio signal to produce a second audio signal, which is then presented to the user.

Abstract: Systems and methods of presenting an output audio signal to a listener located at a first location in a virtual environment are disclosed. According to embodiments of a method, an input audio signal is received. For each sound source of a plurality of sound sources in the virtual environment, a respective first intermediate audio signal corresponding to the input audio signal is determined, based on a location of the respective sound source in the virtual environment, and the respective first intermediate audio signal is associated with a first bus. For each of the sound sources of the plurality of sound sources in the virtual environment, a respective second intermediate audio signal is determined. The respective second intermediate audio signal corresponds to a reflection of the input audio signal in a surface of the virtual environment.

Abstract: Provided are a display apparatus and a headphone control circuit thereof including a main chip, a headphone port and a switch circuit including a control circuit, a left channel switch and a right channel switch, the control circuit, the left channel switch and the right channel switch connecting to the main chip, the control circuit connecting to the left channel switch and the right channel switch, the left channel switch and the right channel switch connecting to the headphone port; the control circuit configured to receive a control signal output from the main chip and, output according to the control signal a first signal to the left channel switch and a second signal to the right channel switch respectively, the first signal is used to control on or off of the left channel switch, and the second signal is used to control on or off of the right channel switch.

Abstract: A system and method for use of a public address pause module with an onboard entertainment system of an aircraft cabin. The module includes a connector for connecting the module to an aircraft public address speaker and an audio detection circuit connected with respect to the connector. A micro controller unit is connected with respect to the audio detection circuit to determine whether a measured voltage of the public address speaker exceeds a pre-set threshold for a pre-determined time period and to generate a pause signal. A wireless transmitter communicates the pause signal to the onboard entertainment system thereby pausing the onboard entertainment system during onboard use of the public address speaker.

Abstract: An audio system including an accelerometer positioned to produce an accelerometer signal representative of road noise within a vehicle cabin; a microphone operably positioned within the vehicle to receive the road noise and to produce a microphone signal having a road-noise component; and a cabin road-noise canceler, comprising a cabin road-noise cancellation filter, configured to receive the accelerometer signal and to produce a cabin road-noise cancellation signal, wherein the cabin road-noise cancellation signal is provided to an acoustic transducer for transduction of an acoustic road-noise cancellation signal, the acoustic road-noise cancellation signal minimizing the road noise within at least one cancellation zone in the vehicle cabin; a microphone road-noise canceler, comprising a microphone road-noise cancellation filter, configured to receive the cabin road-noise signal and the microphone signal and to minimize the road-noise component of the microphone signal according to the cabin road-noise cance

Abstract: A method or apparatus switches between binaural sound and stereo sound in response to head movements of a listener. An electronic device provides the listener with binaural sound at a sound localization point (SLP) in a field-of-view of the listener. Binaural sound at the SLP switches to one of mono or stereo sound when head movements of the listener cause the SLP to move outside the field-of-view.

Abstract: Disclosed is an audio processing system that includes various audio signal inputs and outputs for producing distributed audio signals for use in audio processing and related applications. The digital and/or analog audio signal processing system includes a rack/chassis containing a central routing card, a plurality of slots for receiving modules and a plurality of inputs and outputs for receiving and producing various processed audio signal inputs and outputs.

Abstract: An adapter for connecting a breathing tube to a headpiece includes: a housing including a first portion configured to connect to a breathing tube, a second portion configured to connect to a headpiece, and a hollow cavity extending through the first portion and the second portion to define a flow path for breathable air received from the breathing tube to travel through the adapter for delivery to the headpiece; and a speaker configured to emit an audible sound into the flow path. The speaker is positioned within the housing so that, when the adapter is connected to a breathing tube and a headpiece of a respirator system, the speaker is in close proximity to the headpiece to help ensure sound emitted from the speaker is audible to a user wearing the headpiece. The speaker is also positioned outside of the flow path to prevent air flow obstruction within the adapter.

Abstract: The present disclosure provides a robot and an audio data processing method thereof. The robot includes a body, a main control module, and a sound pickup module. The sound pickup module includes microphones divided into a first microphone array and a second microphone array; the first microphone array includes N microphones disposed around the body; the second microphone array includes M microphones disposed on the body and located on a line connecting two of the microphones in the first microphone array; the main control module is configured to obtain N channels of audio data through the first microphone array, obtain M channels of audio data through the second microphone array, and perform a sound source localization and a sound pickup based on the N channels of audio data and the M channels of audio data.

Abstract: Embodiments described herein relate to methods and apparatus for limiting the excursion of a transducer. The method comprises receiving a transducer signal; and limiting the transducer signal or a signal derived therefrom to generate a limited transducer signal for input into the transducer such that an electrical response caused by the limited transducer signal in an electrical model of the transducer would be less than a threshold electrical response, wherein the threshold electrical response has been determined by: inputting a stimulus input signal into the electrical model of the transducer, wherein the stimulus input signal is designed to cause the transducer to reach a maximum excursion; and determining the threshold electrical response as a maximum of the electrical response caused by the stimulus input signal in the electrical model of the transducer.

Abstract: A MEMS microphone comprises a substrate (110), a lower electrode layer (120), a sacrificial layer (130), a stress layer (140), and an upper electrode layer (150). The substrate (110) is centrally provided with a first opening (111), and the lower electrode layer (120) stretches across the substrate (110). The sacrificial layer (130), the stress layer (140), and the upper electrode layer (150) are sequentially laminated on the lower electrode layer (120), and a second opening (160) is provided on the sacrificial layer (130) and the stress layer (140). The second opening (160) is provided in correspondence with the first opening (111). A stress direction of the stress layer (140) is reverse to a warpage direction of the substrate (110).

Abstract: The present disclosure discloses a wireless microphone system, which includes a host, a wireless communication component and multiple wireless microphones. The host includes a wireless signal processing component and an audio signal processing component. Each wireless microphone is configured to acquire a sound signal, convert the sound signal into an audio signal and wirelessly transmit the audio signal to the wireless communication component. The wireless communication component is configured to send the audio signal to the host. The wireless signal processing component is configured to receive the audio signal from the wireless communication component, perform signal processing on the audio signal to obtain speech data and send the speech data to the audio signal processing component. The audio signal processing component is configured to receive the speech data and perform data processing on the speech data to obtain sound data to be played for network transmission.