Abstract: The behavior of a NOS DAC and an analog filter may be emulated by electronic components of an integrated circuit (IC) by upsampling data and applying a digital filter to the upsampled data. For example, the IC may include a zero-order-hold circuit that upsamples data from a first input sample rate to a second, higher input rate. The upsampled data may be passed to an Asynchronous Sample Rate Converter (ASRC) that performs further upsampling (e.g., from 8*Fs-64*Fs). The upsampled data may be passed to a digital low pass filter. The digital low pass filter may emulate, for example, a response of a fifth order Butterworth analog filter to mimic the effect of analog processing. The IC may integrate the upsampling circuit, the low pass digital filter, a digital-to-analog converter (DAC) and an amplifier to provide an audio solution for playing high-fidelity music in a mobile device.

Abstract: The invention relates to a method implementing at least one loudspeaker comprising at least one module suitable for generating a value representative of an internal operation of the loudspeaker, and a memory unit for storing an alarm criterion relative to the generated value, and control software for controlling the loudspeaker. The method further comprising the steps of the module produces a value representative of the internal operation of the loudspeaker, the loudspeaker compares the generated value and the alarm criterion, and the loudspeaker emits a sound or visual signal if the result of the comparison indicates that the generated value fulfills the alarm criterion.

Abstract: Embodiments of detecting detects in a playback device via audio playback are provided. A playback device may play a test sound during a time period, and capture, via one or more microphones of the playback device, the test sound during the time period. A determination that a defect in the playback device has been detected may be based on the recorded test sound.

Abstract: In one embodiment, a system includes a programmable hearing device configured to deliver a sequence of outputs in-situ, each output corresponding to a sound segment, wherein the outputs are delivered according to fitting parameters programmed into the programmable hearing device, and a computing device communicatively coupled online to a remote server. The computing device may be configured to receive a consumer input indicative of a subjective assessment of the consumer of each of the sound segments, wherein the consumer input is configured to adjust one or more fitting parameters associated with the output corresponding to the sound segment being assessed, wherein the fitting application is configured to make adjustments to the fitting parameters in accordance with the consumer input.

Abstract: A MEMS microphone may include a backplate comprising first and second electrodes electrically isolated from one another and mechanically coupled to the backplate in a fixed relationship relative to the backplate and a diaphragm configured to displace relative to the backplate as a function of sound pressure incident upon the diaphragm, the diaphragm comprising third and fourth electrodes electrically isolated from one another and mechanically coupled to the diaphragm in a fixed relationship relative to the diaphragm such that the third and fourth electrodes displace relative to the backplate as a function of sound pressure incident upon the diaphragm. The first and third electrodes may form a first capacitor and the second and fourth electrodes may form a second capacitor, the capacitance of each which may be a function of the displacement of the diaphragm, and each of which may be biased by an alternating-current voltage waveform.

Abstract: Disclosed herein, among other things, are methods and apparatus for user adjustments to a tinnitus therapy generator within a hearing assistance device. One aspect of the present subject matter relates to a method of providing therapy for tinnitus to a patient. A user interface is provided for patient input to adjust settings of a tinnitus therapy generator. Sound is transmitted from the tinnitus therapy generator to the patient via a hearing assistance device receiver to provide therapy for tinnitus. In various embodiments, settings adjustable by the patient include output levels and frequency response. Other aspects are provided without departing from the scope of the present subject matter.

Abstract: An integrated loudspeaker assembly along with associated methods and systems for enhancing audio output from a consumer electronic device including such an integrated loudspeaker assembly are disclosed. More particularly an integrated loudspeaker assembly configured to utilize the enclosure of an associated consumer electronic device for back volume is disclosed. Methods and systems for optimizing the audio performance of a consumer electronic device with an integrated loudspeaker assembly are also disclosed.

Abstract: A speaker system is provided with a docking station and a removable housing that is mounted to the docking station. The speaker system also includes a receiver, a transducer and a processor that are supported by the removable housing. The receiver receives an audio signal from a mobile media device. The processor communicates with the receiver and is programmed to determine a location of the removable housing relative to the docking station, separate the audio signal into channels and provide at least one channel to the transducer based on the location.

Abstract: A 3D five-channel stereo earphone, comprising: a rear housing, a frame installed on the rear housing, a loudspeaker mounted at a bottom of the frame, a front housing installed on the rear housing; the frame and loudspeaker being sealed and installed in a cavity between the rear housing and the front housing; the front housing having an output; the frame including several mutually isolated output channels connected to the output; the output channels having input holes disposed at the bottom of the frames and on the same horizontal plane; the output channels having output holes disposed on an upper surface of the frame, and the vertical distances between the output holes and the output are different; the headphone enables the optimum sound effects, acoustic quality, stimulated 3D sound effects and the 5.1-channel stereo sound, without adding any electronic circuits or applications.

Abstract: A hearing assistance device may be a hearing aid worn on a person or a mobile device. The hearing assistance device may perform a hearing assistance algorithm based on signal processing parameters. A set of audiological values for a population may be identified. The set of audiological values has a first number of dimensions. The set of audiological values is converted to a reduced data set. The reduced data has set has a second number of dimensions less than the first number of dimensions. A processor calculates a trajectory for the reduced data set. The trajectory provides signal processing parameters for the hearing assistance device.

Abstract: A micro speaker is disclosed. The micro speaker includes a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part and including a plurality of units, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap; capacitors formed by the conductive dome and the units of the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.

Abstract: An articulating speaker assembly includes a first member including a first driver and a second member including second driver. The first member and the second member are pivotally connected for selectively changing the profile of the speaker assembly. A central housing member is pivotally connected to each of the first member and the second member, wherein the central housing member supports a third driver.

Abstract: A micro speaker is disclosed. The micro speaker includes a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome; a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap. The conductive dome includes a number of units for forming capacitors together with the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.

Abstract: An input ambisonic audio signal includes multiple channels, each of which is made up of audio data representing sound captured by an ambisonic microphone. A remote audio signal made up of audio data representing sound captured by remote meeting equipment is output by a local loudspeaker. Acoustic echo cancellation is performed on the input ambisonic audio signal by removing the remote audio signal from the input ambisonic audio signal. The acoustic echo cancellation may be performed on ambisonic A-format or B-format encoded audio data, or on an output encoding generated from the B-format encoded audio data. Comfort noise may be generated based on spectral and spatial characteristics of noise in the input audio data, for insertion into the input signal during acoustic echo cancellation. Automatic gain control may be performed across the multiple channels of the input audio signal.

Abstract: A micro speaker is disclosed. The micro speaker includes a vibration system including a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a magnetic circuit system including a lower plate, a first magnetic part on the lower plate, a second magnetic part on the lower plate, a pole plate attached to the first magnetic part, one of the first and second magnetic part being a permanent magnet for forming a magnetic gap; a capacitor formed by the conductive dome and the pole plate for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.

Abstract: A microphone array includes an n microphone units (where n is an integer equal to or larger than three). A first one of the microphone units includes three microphones ((14-1 through 14-3)) arranged in line at equal intervals. An m-th microphone unit (where m is a positive integer expressed by 1<m<n) includes the microphones at either end of an (m?1)-th microphone unit, and another microphone spaced from the microphone at one end of the (m?1)-th microphone unit by a distance substantially equal to the distance between the microphones at either end of the (m?1)-th microphone unit, and disposed at a location on the side of the (m?1)-th microphone unit opposite to the side where the microphone at the one end at the one end of the (m?1)-th microphone unit is disposed.

Abstract: An audio device includes a digital-to-analog converter, an amplifier, a speaker, a power management unit and a temperature sensor. The digital-to-analog converter is configured to convert a digital audio signal into an analog audio signal. The amplifier is coupled to the digital-to-analog converter and configured to amplify the analog audio signal and generate an amplified analog audio signal. The speaker is coupled to the amplifier and configured to broadcast the amplified analog audio signal. The power management unit is configured to provide the amplifier with a first working voltage and provide the digital-to-analog converter with a second working voltage. The temperature sensor is coupled to the speaker and configured to generate a temperature detection signal according to a temperature of the speaker. Wherein, the power management unit adjusts at least one of the first working voltage and the second working voltage according to the temperature detection signal.

Abstract: A micro speaker is disclosed. The micro speaker includes a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome and a suspension surrounding the conductive dome; a conductive front cover located adjacent to and keeping a distance from the conductive dome, the conductive front cover including a plurality of units being isolated from each other; and a plurality of capacitors formed by the units of conductive front cover and the conductive dome for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.

Abstract: A micro speaker is disclosed. The micro speaker includes a diaphragm and a voice coil for driving the diaphragm, the diaphragm including a conductive dome a suspension surrounding the conductive dome; a conductive front cover located adjacent to and keeping a distance from the conductive dome; and a capacitor formed by the conductive dome and the conductive front cover for outputting electrical signals according to vibrations of the diaphragm and for detecting real-time replacement of the diaphragm.

Abstract: Disclosed is MEMS microphone. The MEMS microphone includes a substrate and a capacitor system disposed on the substrate. The capacitor system has a back plate, a diaphragm, an insulating space formed by the back plate and the diaphragm and at least one insulating support disposed in the insulating space and connected with the back plate or the diaphragm. When the MEMS microphone is working, the insulating support engages with the diaphragm or the back plate thereby dividing the diaphragm into at least two vibrating units which improves the sensitivity and SNR of the MEMS microphone. Meanwhile, the MEMS microphone has the advantage of low cost and is easy to be fabricated.