Abstract: The present invention relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present invention and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.

Abstract: A detection device and an indoor navigation system are provided. The detection device includes two detection modules each including a sound receiver for receiving sound from a peripheral object and a signal converting circuit that is electrically coupled to the sound receiver and that is configured to convert input signal from the sound receiver into a target spectrogram. The two spectrograms from the signal converting circuits have a time/phase difference, and at least one wireless earphone includes a storage unit and a judging circuit that is electrically coupled to the storage unit and the two signal converting circuits. The judging circuit is configured to compare any target spectrogram with basic spectrograms of the storage unit so as to determine which kind of objects the peripheral object is, and is configured to obtain an instant position of the peripheral object by the time/phase difference.

Abstract: Circular flat panel loudspeaker comprising a resonant with a rear surface opposite the front surface. An exciter is provided at an axial centre of panel and coupled to the rear surface of the panel to cause the panel to vibrate, on operation of the exciter, to generate sound. A frame is provided for mounting in the surface and having the rear surface of the panel fixed thereto around the whole of the outer boundary of the panel, such that when mounted in the mounting surface and when the panel is caused by the exciter to vibrate on operation of the exciter, the outer boundary of the panel is fixed relative to the mounting surface.

Abstract: An acoustic reflector for a microphone to measure flyover noise generated by an aircraft. The microphone is configured to measure flyover noise generated by an aircraft flying on a preset path. The acoustic reflector includes at least a central portion having the shape of an ellipse having a major axis and a plurality of peripheral portions distributed around the central portion. The acoustic reflector allows edge effects to be attenuated at the low frequencies of the noise to be measured.

Abstract: The problem to be solved is to improve a noise cancelling function. A detection microphone, a speaker, and a housing are included. The detection microphone detects noise and has an input vibrating plate. The speaker has an output vibrating plate. The housing accommodates at least the speaker and the detection microphone therein. The input vibrating plate and the output vibrating plate are disposed approximately in the same orientation. This ensures that a sound is output from the speaker while a sound is input to the detection microphone with the input vibrating plate and the output vibrating plate facing each other, thus making it possible to bring the input vibrating plate and the output vibrating plate closer to each other. As a result, it is less likely for a phase lag to take place between the sound output from the speaker and the sound input to the detection microphone, thus providing higher noise detection accuracy of the detection microphone and contributing to an improved noise cancelling function.

Abstract: The present application relates to a hearing aid adapted to be worn in or at an ear of a hearing aid user and/or to be fully or partially implanted in the head of the hearing aid user.

Abstract: A dipole loudspeaker for producing sound at bass frequencies. The dipole loudspeaker includes: a diaphragm having a first radiating surface and a second radiating surface, a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, and a frame. The loudspeaker is for use with an ear of a user being located at a listening position that is in front of the first radiating surface and is 40 cm or less from the first radiating surface.

Abstract: An example computer system identifies a capability of a playback device to reproduce audio content. Based on the capability, the computer system identifies a first version of audio content for playback by the playback device and causes the playback device to play back the first version of audio content. While the playback device is playing back the first version of the audio content, the computer system detects a change in a network connection between the computer system and the playback device. Based on the detected change in the network connection and the capability of the playback device, the computer system identifies a second version of audio content for playback by the playback device and causes the playback device to transition from playing back the first version of the audio content to playing back the second version of the audio content.

Abstract: A hearing device, e.g. a hearing aid or a headset, configured to be worn by a user at or in an ear or to be fully or partially implanted in the head at an ear of the user comprises an input unit for providing at least one electric input signal in a time-frequency representation and a signal processor comprising a neural network configured to provide respective gain values G(k,t) in said time-frequency representation for reducing noise components in said at least one electric input signal. The neural network comprises at least one layer defined as a modified gated recurrent unit, termed Peak GRU, comprising memory in the form of a hidden state vector h, and wherein an output vector o is provided by said Peak GRU in dependence of an input vector x and said hidden state vector h, wherein an output o(j,t) of the Peak GRU at a given time step t is stored as said hidden state h(j,t) and used in the calculation of the output o(j,t+1) in the next time step t+1.

Abstract: Personal electronic devices are provided in the form of personal audio equipment. Devices of the present disclosure include readily-moldable ear inserts that are selectively formed to fit the shape of a user's ear and do not require heating, curing, setting, or other temperature manipulation. In some embodiments, the devices comprise wireless audio technology and wireless conductive charging.

Abstract: A method for detecting wind using a microphone and a speaker of an electronic device. The method obtains a microphone signal produced by the microphone. The method obtains a speaker input signal produced by the speaker that is emulating a microphone capturing ambient sound in an environment through the speaker. The method determines a coherence between the microphone signal and the speaker input signal and determines whether the coherence is below a coherence intensity threshold. In response to determining that the coherence is below the coherence intensity threshold, the method determines a presence of wind in the environment.

Abstract: The speaker device (100) includes a diaphragm (11), an exciter (13) which vibrates in response to an input electrical signal, and a vibration-transmitter (15) which is connected to both the diaphragm (11) and the exciter (13) and transmits the vibration of the exciter (13) to the diaphragm (11), in which the diaphragm (11) has a loss coefficient at 25° C. of 1×10?2 or higher and the vibration-transmitter (15) has a specific elastic modulus of 20 mm2/s2 or higher.

Abstract: The invention provides a sounding device having a housing body with a containment space, a sound outlet formed in the housing body, a speaker unit fitted in the housing body, an intake valve that communicates the outside with the front cavity and that is used for introducing air into the front cavity, and an unidirectional outlet valve that communicates the front cavity with the outside and discharges air in the front cavity to the outside through the sound outlet. The speaker unit separates the containment space into a front acoustic cavity and a back cavity, the sound outlet is communicated with the front acoustic cavity and forms a front cavity together. The invention also provides a mobile terminal. Compared with the related art, the sounding device and the mobile terminal of the invention have better reliability and better performance.

Abstract: Presented herein are directed to techniques for using objective measurements to determine a combined efficiency of an implantable actuator and a mechanical coupling of the implantable actuator to an auditory structure of an ear of a recipient. In particular, the implantable actuator is activated so as to deliver, via the mechanical coupling, mechanical stimulation to the auditory structure to effect a pressure change in an inner ear of the recipient. At least one stimulation device, that is separate from the implantable actuator, is configured to deliver secondary stimulation to the recipient to also effect a pressure change in the inner ear of the recipient. Objective measurements are performed to intra-operatively capture auditory evoked responses of the recipient in response to the mechanical stimulation and in response to the secondary stimulation. These auditory evoked responses are analyzed to determine a vibratory coupling efficiency.

Abstract: A speaker integrated into a scanner is provided. The scanner comprises speaker firmware that presents the scanner as two separate logical devices to an Operating System (OS) of a connected host device. The integrated speaker of the scanner can be configured from the OS of the host device to be a primary or secondary speaker of the host device. The host device ports audio generated data on the host device over a wired or wireless connection to the speaker firmware, and the speaker firmware plays the host-generated audio data over or through the integrated speaker of the scanner.

Abstract: A hearing assistance system and method are described herein. The system includes a first ear-worn device, a second ear-worn device, and a case. The system is configured to detect a vibration sequence at an IMU and decide whether to pair wireless communication devices of the first and second ear-worn devices based on the vibration sequence detected at the IMU.

Abstract: In one embodiment, a method for determining a dynamic head-related transfer function for a subject includes receiving audio recordings of a sound captured by audio sensors. The sound is emitted by an in-ear speaker worn by the subject. Additionally, a reference signal captured by a microphone coupled to the in-ear speaker and one or more images captured by image sensors are received. The one or more images depict a body pose of the subject while the sound is emitted by the in-ear speaker and may be used to generate a pose representation of the body pose of the subject. A head-related transfer function for each audio sensor is determined based on the pose representation, the audio recordings of the sound, and the reference signal. The dynamic head-related transfer function is determined based on the head-related transfer function for each audio sensor.

Abstract: The present technology relates to signal processing device and method that make it possible to reproduce sound more effectively. A signal processing device includes a rotation operation unit that rotates a head-related transfer function in a spherical harmonic domain by an operation on the basis of a rotation matrix corresponding to rotation of a head of a listener, the operation in which an order of the rotation matrix is limited, and a synthesis unit that synthesizes the head-related transfer function after rotation obtained by the operation and a sound signal of the spherical harmonic domain to generate a headphone drive signal. The present technology is applicable to an audio processor.

Abstract: Provided are an audio processing device, an audio processing method, an information processing device, and a computer program that perform echo cancellation corresponding to double talk. The audio processing device includes an estimation unit that estimates a filter representing a transmission characteristic from a speaker where a reference signal is output to a microphone in which the reference signal sneaks, an adjustment unit that adjusts a step size on the basis of a filter update coefficient estimated by the estimation unit, and an update unit that updates the filter according to the update coefficient and the step size. The adjustment unit adjusts the step size on the basis of a ratio of power of the filter update coefficient to maximum power of the filter.

Abstract: A method and system is disclosed for a headset with force isolation, where the headset comprises a headband having two upper headband sections coupled by a center block and two ear cups, where each ear cup is coupled to one of the two upper headband sections. The two upper headband sections may include side support strips between which a movable strip may be placed, thereby increasing the rigidness of the headband when fully extended between the side support strips. The rigidness of the headband may decrease when the movable strips are retracted from between the side support strips and into the center block utilizing a slider knob. The side support strips may be plastic and the movable strip may be metal. The center block may be more rigid than the side support strips. The center block may be plastic. The headband may include headband endcaps at lower ends of the headband.