Abstract: A device includes an ear occlude, an output transducer that is acoustically coupled to an ear canal of a wearer of the device, a voice microphone configured to generate a first electrical signal that is proportional to a voice-generated sound pressure at the microphone, and signal processing circuitry, electrically coupled to the output transducer and the microphone, including a compensator configured to generate, from the first electrical signal, a second electrical signal, and output the second electrical signal to the output transducer, wherein the compensator is tuned to cause GOE, a ratio of a sound pressure within the ear canal to a voice-generated sound pressure at a mouth reference point when the ear is occluded and electronically-aided to be approximately equal to GU, a ratio of the sound pressure within the ear canal to the voice-generated sound pressure at the mouth reference point when the ear is unoccluded.

Abstract: An audio matrix formed from absolute amplitude values of coefficients obtained by frequency-transforming an audio signal is generated. The audio matrix is factorized into a basis spectrum and activity matrices. Bases in the basis spectrum matrix are classified into bases concerning a target sound and bases concerning noise. Bases in the activity matrix are classified into bases concerning the target sound and bases concerning the noise. Bases concerning the target sound are obtained from the bases concerning the noise classified from the basis spectrum matrix. A matrix including frequency amplitude values of the target sound is obtained using the bases concerning the target sound classified from the basis spectrum matrix, the bases concerning the target sound and noise classified from the activity matrix, and the obtained bases. The audio signal of the target sound is generated using the matrix.

Abstract: An audio signal in which a first audio component and a second audio component are mixed is inputted. The audio signal is transformed into a time-frequency signal representing relation between time and signal frequency. The time-frequency signal is divided into a plurality of bands. A time-frequency signal in a band, in which influence from the second audio component is small among the plurality of bands, is factorized into activity vectors composing a first activity matrix. The time-frequency signal transformed from the audio signal is factorized into activity vectors composing a second activity matrix using the first activity matrix as a teacher activity.

Abstract: The technology disclosed herein relates to a modular communication device and a system. The modular communication device has a speaker carrier and an electronics module. The speaker carrier has a speaker and an attachment portion, and the electronics module has a wireless transceiver. The speaker carrier and the electronics module are detachably coupled so that the electronics module provides audio signals to the speaker when the speaker carrier and electronics module are coupled. The speaker carrier can be removed from and attached to the electronic module. In one embodiment, the system generally has two or more modular communication devices and a base station that allows communication between the modular communication devices.

Abstract: A microelectromechanical (MEMS) microphone includes a MEMS motor and a gain adjustment apparatus. The MEMS motor includes at least a diaphragm and a charge plate and is configured to receive sound energy and transform the sound energy into an electrical signal. The gain adjustment apparatus has an input and an output and is coupled to the MEMS motor. The gain adjustment apparatus is configured to receive the electrical signal from the MEMS motor at the input and adjust the gain of the electrical signal as measured from the output of the gain adjustment apparatus. The amount of gain is selected so as to obtain a favorable sensitivity for the microphone.

Abstract: An animal headphone apparatus is a modified headphone device specifically suited for use with dogs, so that an owner may allow their dog or other pet to listen to music, or the owner may use the headphones to command, train or monitor their pet. A first earpiece and a second earpiece are oriented inward and downward to account for the substantially vertical structure of a canine ear canal. A chipset and a power source provide capability for several features, including an integrated music player, at least one camera, a microphone, a vibration producing device, a global positioning system device, and at least one digital display for video viewing by the dog or other pet. A wireless communication device allows a user to control the various features through a smart phone or remote control.

Abstract: A speaker apparatus comprises a speaker box SB in which a speaker 51(or 52) is placed, as well as a bass reflex port 22 (or 23), an electric circuit device 40 and a drip-proof wall 16 placed in the speaker box SB. One end of the bass reflex port 22 is open outside the speaker box SB while other end of the bass reflex port 22 is open in the speaker box SB. The drip-proof wall 16 isolates the electric circuit device 40 from the other end of the bass reflex port 22 so that the speaker apparatus can prevent water droplets intruding into the speaker box SB through the bass reflex ports 22 from reaching the electric circuit device 40.

Abstract: The approach shown provides for an efficient implementation of time response, level response and frequency response alignment between two audio sources such as DAB and FM that may be time offset from each other by as much as 2 seconds, and produces an aurally undetectable transition between the sources. Computational load is significantly reduced over the approaches known in the prior art.

Abstract: A mixing device includes a signal data generation unit that generates signal data on a time-frequency plane composed of a time-axis and a frequency-axis from each of two or more input signals derived from a time domain, a signal processing unit that receives the signal data for the two or more input signals, and performs a mixing process that includes an adding operation of the signal data for each corresponding point on the time-frequency plane of the signal data for each of the input signals, and an output signal generation unit that receives the operation result of the signal processing unit and outputs an output signal formed by converting the inputted signal into a signal of a predetermined format.

Abstract: Techniques for audio synchronization are described. In one embodiment, for example, an apparatus may comprise a processor circuit and an audio synchronization module, and the audio synchronization module may be operable by the processor circuit to receive audio information comprising a first network time index defined with respect to a network clock for a network, determine a second network time index for the audio information, the second network time index defined with respect to the network clock, determine a transmission delay value for the audio information based on a difference between the first network time index and the second network time index, and determine a total delay value for the audio information based on the transmission delay value and on a remote processing delay value for the audio information. Other embodiments are described and claimed.

Abstract: A multi-loudspeaker active noise cancelling headphone that can provide stereo effect and improve the performance of ambient noise reduction employs an active noise reduction circuit to collaborate with a plurality of speakers and a design to generate a multilayer phase difference feedback audio signal in the earmuffs of the headphone to improve the performance of noise reduction efficacy and generate stereo effect for music so that through the speakers of a lower cost and in a medium quality, and individual filters and signal compensation music with spatial sense and a sense of depth can be generated.

Abstract: Speech enhancement apparatus and respirator masks including speech enhancement apparatus, as well as methods of enhancing speech transmission for the wearer of a respirator mask are described herein. In one or more embodiments, the speech enhancement apparatus and methods described herein detect acoustic energy within a first frequency range in the clean air envelope of a respirator mask and deliver compensating acoustic energy outside of the clean air envelope using a speaker. The compensating acoustic energy, in one or more embodiments, exhibits a predetermined attenuated amplitude profile such that the compensating acoustic energy has an amplitude less than 6 dB greater than the acoustic attenuation profile of the mask body over at least 90% of a predetermined attenuated frequency range.

Abstract: A loudspeaker drive circuit comprises an input for receiving an audio signal and a signal processor for processing the audio signal before application to the loudspeaker. The signal processor processes the audio signal to derive a loudspeaker drive signal which results in the loudspeaker membrane reaching its maximum displacement in both directions of diaphragm displacement.

Abstract: There is provided a notification control device including a determination unit configured to determine whether a sound collection unit configured to collect voice in a microphone is blocked, and a notification controller configured to cause, when it is determined that the sound collection unit of the microphone is blocked, a determination result to be reported to a user. When a voice signal indicating the voice collected by the microphone is recorded, the notification controller causes the determination result to be reported to the user in one or more notification ways not including an auditory notification way. When the voice signal is not recorded, the notification controller causes the determination result to be reported to the user in one or more notification ways from among one or more notification ways including the auditory notification way.

Abstract: An apparatus and method for generating a panoramic sound are provided. The panoramic sound generation apparatus may include a panning coefficient calculation unit to calculate a panning coefficient that represents directivity of a sound source using an input signal, a masker determination unit to determine a direction masker that extracts a sound source of a desired direction based on the panning coefficient, and a channel separation unit to separate to be used as an output signal, output to a sound output device, using the direction masker.

Abstract: Embodiments are provided for satellite volume control. An example method includes receiving an input at a playback device to adjust a volume for a plurality of playback devices that are grouped for synchronous playback of audio content, wherein the plurality of playback devices includes the playback device. The method also includes sending a first message over a network from the playback device to a device associated with the plurality of playback devices, the first message including information based on the input, wherein the information is used to adjust the volume of the plurality of playback devices. The method also includes receiving a second message at the playback device over the network, the second message including information for the volume of the playback device, wherein the volume is based on the adjusted volume of the plurality of playback devices.

Abstract: Apparatus, system and method for generating and reproducing audio, were vehicle data, representing a vehicle characteristic, is produced and transmitted to a portable processing device communicatively coupled to a vehicle. The vehicle data is processed to determine a vehicle state and an audio generation application is invoked based on the determined vehicle state. The portable processing device receives user inputs representing physical inputs/manipulation, wherein audio is generated based on the user inputs. The portable processing device may be communicatively coupled to other portable devices, wherein user inputs from the other portable devices generate and/or modify audio.

Abstract: The present disclosure generally relates to the technical field of mobile apparatuses, and discloses a method and a device for an earphone and a USB to share a Micro-USB interface. The method comprises the following steps of: A. detecting whether USB lines or earphone lines are plugged into the Micro-USB interface and generating a corresponding control signal to a control module by an interface detecting module; and B. selecting to activate a USB task or turn on an audio path according to the control signal by the control module. The present disclosure allows the earphone function and the USB function to be achieved through a single Micro-USB interface (i.e., the battery charger, the data lines and the earphone function are integrated together), and can be implemented in a simple structure and at a low cost.

Abstract: Disclosed is a vehicle-like sound generation method wherein an acquisition unit (730A) refers to map information contained in a memory unit (710) based on the current position of a vehicle (MV) detected by a position detection unit (720), acquires lane information including the number of lanes on the road the vehicle (MV) is currently driving on, and sends the acquired lane information to a determination unit (740). Then, the determination unit (740) determines the range of the vehicle-like sound output towards the exterior of the vehicle based on the lane information sent by the acquisition unit (730A). Next, a control unit (750) calculates the volume setting for the vehicle-like sound output from the left and right speakers of a sound output unit (760) based on the determined range. Thus, output of the vehicle-like sound can be controlled while taking into account the probability that persons to be notified are present in surroundings which change due to the type of road currently being driven on.

Abstract: When an indication is received from a user input, a name of an audio source from an ordered list of audio sources to which a headset is currently connected is output. Whenever a successive indication is received within a predefined amount of time, the name of the next wireless audio source in the list is output. If the next wireless audio source in the list is the last wireless audio source in the list, and the successive indication from the user input is received before the elapsed time exceeds the predefined value, the name of the audio source to which the headset is currently connected is output as the next selected wireless audio source in the list. When an amount of time greater than the predefined value elapses without a successive indication from the user input, the last wireless audio source that had its name output is connected.