Abstract: The present disclosure discloses a sound device includes a frame having a receiving space, a vibration system and a magnet system having a magnetic gap; the vibration system includes a diaphragm and a coil; the magnet system includes a yoke and a magnet; the sound device further includes a FPCB connecting the coil with an outer circuit; the FPCB includes a first welding portion connecting with the coil, a second welding portion connecting with the outer circuit, and a connection portion connecting the first welding portion and the second welding portion, the second welding portion is fixed to the frame and located outside the receiving space. The sound device in the present disclosure has higher space utilization rate.

Abstract: A damper has an inner circumference including a curve descending in a bow shape. A wave section extends from the outer circumferential end of the curve to the outer circumference of the damper. The inner circumference of the damper is shorter than the wave section.

Abstract: A method of canceling road noise includes: receiving a first signal from an acceleration sensor disposed at a vehicle and a second signal from a microphone disposed at the vehicle; monitoring, based on the first and second signals, whether an abnormal event has occurred; determining, based on a result from monitoring whether the abnormal event has occurred, a plurality of parameter values for performing adaptive filtering; and performing, based on the determined parameter values, adaptive filtering to generating an output signal for noise canceling.

Abstract: The present disclosure is a noise cancellation system including: a microphone that converts a sound wave into an electrical signal; a transmission line that propagates the electrical signal from the microphone; a speaker that reproduces a sound wave from the electrical signal from the transmission line; a phase inversion circuit that is provided between the microphone and the speaker, and inverses the phase of the electrical signal; a gain adjustment circuit that is provided between the microphone and the speaker, and adjusts a gain for amplifying the electrical signal; and a delay adjustment circuit that is provided between the microphone and the speaker, and adjusts the amount of delay of the electrical signal.

Abstract: An illustrative hearing system may be configured to receive, from an inertial sensor included in a hearing device configured to be worn by a user, inertial sensor data representative of at least one of motion of the hearing device or orientation of the hearing device. The hearing system may further be configured to determine, based on the inertial sensor data, an activity state of the user and to determine, based on the activity state, a cardiorespiratory quality index representative of a quality level of a measurement of a cardiorespiratory property of the user.

Abstract: An active noise reduction system includes a canceling sound output device configured to output a canceling sound for canceling a noise, a noise signal generator configured to generate noise signals based on the noise, and a controller configured to control the canceling sound output device based on the noise signals, wherein the controller is configured to acquire buffer data in which the noise signals are stored in a time series, generate a plurality of divided data by dividing the buffer data, calculate a correlation value of the buffer data based on the plurality of divided data, detect presence/absence of disturbance mixed in the buffer data based on the correlation value, and switch control over the canceling sound output device according to the presence/absence of the disturbance mixed in the buffer data.

Abstract: An active noise control (ANC) circuit is used for generating an anti-noise signal, and has a plurality of filters including at least one first filter and at least one second filter. The at least one first filter generates at least one first filter output, wherein each of the at least one first filter has a first filter type. The at least one second filter generates at least one second filter output, wherein each of the at least one second filter has a second filter type different from the first filter type. The anti-noise signal is jointly controlled by the at least one first filter output and the at least one second filter output. The at least one first filter and the at least one second filter are connected in a parallel fashion.

Abstract: Provided is an information processing apparatus including a sensor, an actuator, a vibration control circuit, a transmission circuit, and a reception circuit. The sensor detects vibration of a control target. The actuator provides vibration control of the control target. The vibration control circuit generates a drive signal for the vibration control for the actuator according to an output signal of the sensor, and outputs the generated drive signal to the actuator. The transmission circuit modulates transmission data to produce a transmission signal, and synthesizes the modulated transmission signal to produce the drive signal for the vibration control that is to be outputted to the actuator. The reception circuit extracts a reception signal from the output signal of the sensor, and demodulates the extracted reception signal to produce reception data.

Abstract: The present disclosure provides an earphone with a duct unit dividing a pressure equilibrium hole and a back hole. The earphone includes a driver unit including a frame, a magnetic circuit, a voice coil, a diaphragm configured to reproduce sound, and a pressure equilibrium hole configured to improve a pressure difference between front and rear sides of the driver unit, and a back hole configured to smooth vibration of the diaphragm. A housing allows the driver unit to be installed therein and includes a vent hole. A duct unit provided in the housing adjusts a size of a back volume in the housing and provides a flow path from the pressure equilibrium hole to the vent hole.

Abstract: A microphone array is a microphone array including two or more microphone holders 1. The two or more microphone holders 1 each hold one microphone. The two or more microphone holders 1 are separatable from each other. The two or more microphone holders 1 are combinable in two or more combination manners different from each other such that the two or more microphone holders 1 are each in contact with any one of the other microphone holders 1 and a distance between the two respective microphones held by two of the microphone holders 1 that are in contact with each other is a predetermined distance.

Abstract: In the method according to the invention for active noise suppression, a transfer function for a secondary path between a loudspeaker and an error microphone is measured (20). Based on the measured transfer function for the secondary path, a transfer function for a primary path between a reference microphone and the error microphone is estimated (21). Based on the estimated transfer function for the primary path, filter coefficients for filtering to generate the cancellation signal are then determined (22).

Abstract: An audio system and method of spatially rendering audio signals that uses modified virtual speaker panning is disclosed. The audio system may include a fixed number F of virtual speakers, and the modified virtual speaker panning may dynamically select and use a subset P of the fixed virtual speakers. The subset P of virtual speakers may be selected using a low energy speaker detection and culling method, a source geometry-based culling method, or both. One or more processing blocks in the decoder/virtualizer may be bypassed based on the energy level of the associated audio signal or the location of the sound source relative to the user/listener, respectively. In some embodiments, a virtual speaker that is designated as an active virtual speaker at a first time, may also be designated as an active virtual speaker at a second time to ensure the processing completes.

Abstract: For example, a controller of an Active Acoustic Control (AAC) system may be configured to process input information including AAC configuration information, and a plurality of noise inputs representing acoustic noise at a plurality of noise sensing locations. For example, the controller may be configured to process the input information to determine a sound control pattern to control sound within a sound control zone based on the plurality of noise inputs. For example, the controller may include a Neural-Network (NN) trained to generate an NN output based on an NN input, wherein the NN input is based on the AAC configuration information. For example, the controller may be configured to generate the sound control pattern based on the NN output, and to output the sound control pattern to one or more acoustic transducers.

Abstract: A noise canceling adaptive filter outputs, from a front seat speaker, a noise canceling sound generated by applying a transfer function X(z) adapted by an adaptive operation using an output of a front seat microphone as an error to an output sound of a sound source apparatus. An output of the front seat microphone is added to an output of an audio feedback canceling filter by a second adder, added to an output sound of the sound source apparatus by a third adder, and output from a rear seat speaker. The audio feedback canceling filter applies a transfer function X?(z) and a transfer function C{circumflex over (?)}(z) on an output of the second adder and outputs a resultant. The transfer function C{circumflex over (?)}(z) corresponds to a transfer function C(z) from the front seat speaker to the front seat microphone. In synchronization control, the transfer function X(z) is set as the transfer function X?(z).

Abstract: A sound-receiving system is provided, including: a sound-guiding tube, a microphone, and an acoustic perforated sheet. The sound-guiding tube has a winding path, including a first end, a second end, and a sound-receiving hole. The second end is opposite the first end. The sound-receiving hole is disposed at the first end. The microphone is abutted against the second end. The acoustic perforated sheet is disposed adjacent to the sound-receiving hole and is a distance away from the sound-receiving hole. The sound-receiving hole is offset from the microphone. The acoustic perforated sheet reduces and filters the frequency response of a specific frequency range of the microphone.

Abstract: A microphone assembly includes a microphone, an inner sleeve and an outer sleeve. The microphone has a shell, a diaphragm, a first sound receiving hole and a second sound receiving hole. The inner sleeve has a first hole and a second hole. The microphone is received between the first hole and the second hole. The inner sleeve is movable relative to the outer sleeve. The inner sleeve and the outer sleeve have at least two relative positions: in a first relative position, both the first hole and the second hole communicate with an outside environment; and in a second relative position, the first hole or the second hole communicates with the outside environment. The microphone assembly utilizes the relative movement of the inner sleeve and the outer sleeve to achieve directivity change.

Abstract: The present disclosure provides an acoustic output apparatus including one or more status sensors, at least one low-frequency acoustic driver, at least one high-frequency acoustic driver, at least two first sound guiding holes, and at least two second sound guiding holes. The status sensors may detect status information of a user. The low-frequency acoustic driver may generate at least one first sound, a frequency of which is within a first frequency range. The high-frequency acoustic driver may generate at least one second sound, a frequency of which is within a second frequency range including at least one frequency exceeding the first frequency range. The first and second sound guiding holes may output the first and second spatial sound, respectively. The first and second sound may be generated based on the status information, and may simulate a target sound coming from at least one virtual direction with respect to the user.

Abstract: The present technology relates to an audio processing apparatus and method and a program that make it possible to obtain sound of higher quality. An acquisition unit acquires an audio signal and metadata of an object. A vector calculation unit calculates, based on a horizontal direction angle and a vertical direction angle included in the metadata of the object and indicative of an extent of a sound image, a spread vector indicative of a position in a region indicative of the extent of the sound image. A gain calculation unit calculates, based on the spread vector, a VBAP gain of the audio signal in regard to each speaker by VBAP. The present technology can be applied to an audio processing apparatus.

Abstract: A headphone includes a headgear and two earmuffs connected to opposite ends of the headgear, and each of the earmuffs includes an adjustment assembly. The adjustment assembly includes a base, two elastic members, two protrusions, and two sliding blocks. The base has two opposite accommodating parts and two guiding grooves. The elastic members are disposed in the accommodating parts, respectively, and the elastic members extend along a first axial direction. The protrusions are slidably connected to the guiding grooves, respectively, and protrude into the accommodating parts. The sliding blocks are disposed in the accommodating parts, respectively, and each of the sliding blocks is respectively connected between the corresponding protrusion and the corresponding elastic member.

Abstract: An input unit receives input of an assumed listening position of sound of an object, which is a sound source, and outputs assumed listening position information indicating the assumed listening position. A position information correction unit corrects position information of each object on the basis of the assumed listening position information to obtain corrected position information. A gain/frequency characteristic correction unit performs gain correction and frequency characteristic correction on a waveform signal of an object on the basis of the position information and the corrected position information. A spatial acoustic characteristic addition unit further adds a spatial acoustic characteristic to the waveform signal resulting from the gain correction and the frequency characteristic correction on the basis of the position information of the object and the assumed listening position information. The present technology is applicable to an audio processing device.