Abstract: Example techniques involve determining a direction of an NMD. An example implementation includes causing two audio drivers to output audio content, where the audio drivers are positioned at a known distance apart in a given azimuthal plane and recording the audio content output by the two audio drivers. The implementation also includes causing a processing device to identify a direction of the NMD relative to a center point of the two audio drivers in the given azimuthal plane. Identifying the direction of the NMD may involve determining a range of possible azimuthal angles between the NMD and the center point, the range of possible angles dependent upon the known distance between the two audio drivers and a phase offset between the two audio drivers indicated by the recorded audio content output. The implementation further includes causing a playback device to adjust calibration based on the identified direction of the NMD.

Abstract: Provided is an impedance conversion circuit of a condenser microphone which includes a first electron tube operated in grounded-cathode mode to whose grid an output signal from a condenser microphone unit is inputted, and from whose plate a signal is outputted, a first emitter-follower circuit configured to receive a signal based on a plate output of the first electron tube and amplify a current, and a first feedback element configured to transmit a feedback signal from an emitter of a transistor configuring the first emitter-follower circuit to the grid of the first electron tube. And the impedance conversion circuit can achieve a wide dynamic range while using a voltage amplifier circuit with an electron tube at an initial stage.

Abstract: An apparatus comprising: a first substantially horn shaped structure configured to couple and amplify sound from a first speaker of a further apparatus; and a second substantially horn shaped structure configured to couple and amplify sound from a second speaker of the further apparatus, wherein the first and second substantially horn shaped structure each comprise a mouth portion with a physical separation dimension greater than a physical separation dimension of the first and second speaker acoustic outlet of the further apparatus.

Abstract: A connector-based link is suited to various signals and media for connecting a tube with a hearing instrument, which ensures a reliable mechanical hold, good connection and high tightness and in the process is easy to handle. This is achieved by a connector for a hearing instrument system including a housing which contains a number of connections, and a tube which contains a number of lines, which is embodied to detachably connect a number of lines of the tube to a number of connections of the housing, wherein the connections of the connector contain different spatial orientations. The fact that the connections each have a different spatial orientation brings about a mutual decoupling. As a result, the demands on dimensional stability of the various connections are advantageously reduced since the different connections are not closed in a shared, identical end position.

Abstract: An electronic device including a sound output module and a housing for the electronic device are provided. The electronic device includes a front case including a display unit, a rear case coupled to the front case and including a mounting space of a battery, a speaker module configured to form at least one side wall of the mounting space of the battery, and a battery cover configured to cover at least the mounting space of the battery.

Abstract: A mobile terminal and controlling method thereof are disclosed, which facilitates a terminal to be used in further consideration of user's convenience. The present invention includes a display unit configured to display an image signal of a video, an audio output unit configured to output an audio signal of the video, and a controller configured to separate the audio signal of the video into sound sources, and control a volume of at least one of the sound sources manually or automatically.

Abstract: An anti-noise signal is produced in accordance with an active noise cancellation process (ANC), at an input of a speaker so as to control how much background noise a user can hear. Strength of the anti-noise signal is adjusted gradually, rather than abruptly, in proportion to decreasing or increasing sound pressure level (SPL) of the background noise, during inactivation or activation of the ANC process. Other embodiments are also described and claimed.

Abstract: Provided are an interested audio source cancellation method, a voice recognition method using the interested audio source cancellation method, computer-readable recording media recording programs for implementing the methods, and a voice recognition apparatus for performing voice recognition by using the interested audio source cancellation method. The interested audio source cancellation method includes steps of: receiving input mixed signals from two microphones and transforming the signals into a time-frequency domain through short-term Fourier transformation; setting an interested audio source cancellation vector for cancelling an interested audio source signal from the input mixed signals in the time-frequency domain; and generating a mixed noise signal by cancelling the interested audio source signal from the input mixed signals by using the interested audio source cancellation vector.

Abstract: An active noise control apparatus for a vehicle including: a plurality of microphones each configured to receive noise generated in the vehicle and generate an electrical signal corresponding to the noise; an external amplifier configured to supply power required for operations of the plurality of microphones; and a head unit configured to control the external amplifier to output a signal for removing the noise, based on the electrical signals generated from the plurality of microphones.

Abstract: A method for cross-modal signal denoising, the method comprising using at least one hardware processor for: providing a first multi-modal signal comprising at least two relatively clear modalities; correlating features exhibited simultaneously in the at least two relatively clear modalities of the first multi-modal signal; providing a second multi-modal signal comprising at least one relatively noisy modality and at least one relatively clear modality; and denoising the at least one relatively noisy modality of the second multi-modal signal by associating between (a) features exhibited in the at least one relatively noisy modality of the second multi-modal signal and (b) the features of the first multi-modal signal.

Abstract: A multi-mode audio device includes speakers and a sound output control configured to control a maximum level of sound emitted by the speakers. The sound output control comprises a control interface configured to receive selection of an operative mode of the multi-mode audio device from among a managed mode and a normal mode. An access control communicatively coupled to the sound output control is configured to require an authentication to switch from the managed mode to the normal mode. A mode indicator communicatively coupled to the sound output control and configured to provide a visual indication of the operative mode. Optionally, a monitoring system communicatively coupled to the sound output control is configured to capture one or more data regarding usage of the multi-mode audio device and to generate a report regarding the one or more data regarding usage of the multi-mode audio device.

Abstract: Systems and methods for dynamically adjusting a volume are provided. A presentation of a media asset is generated with a user equipment device at a first volume level. A user request to adjust a volume level of the media asset is received. Subject matter of the media asset currently being presented is determined. A volume adjustment rate is automatically set based on the determined subject matter. The volume level of the media asset is gradually adjusted from the first volume level to a second volume level at a rate corresponding to the volume adjustment rate based on the user request.

Abstract: A hearing aid includes a relatively rigid shell which holds hearing aid electronics and one or more flexible, shape-retaining filaments attached to the hearing aid shell. The filament(s) extend(s) out a proximal side of the hearing aid shell having a shape which interacts with the user's ear anatomy such as the conchae bowl. The shape determines an insertion depth of the hearing aid shell into the user's ear canal, and a spring action biases the hearing aid toward the desired insertion depth. The hearing aid supported by the filament(s) provides an open, unoccluding position in the ear canal.

Abstract: A system for controlling noise in a fenestration assembly (e.g., a window) includes a fenestration assembly with at least one glazing and a frame. The at least one glazing has a surface. At least one sensor is coupled to the at least one glazing and is configured to generate noise detection signals. An actuator is positioned on the surface of the at least one glazing and has a plurality of regions. A controller is coupled to the sensor and the actuator and is configured to control each of the regions of the actuator to generate a different frequency based on the noise detection signals. Alternatively, each of the regions may be controlled to generate a frequency with a different phase shift based on the noise detection signals.

Abstract: Various embodiments provide for an improved attachment apparatus for attaching the attachment apparatus to an ear of a user. In some embodiments, the attachment apparatus may include an attachment body that defines an opening configured to enable a majority of a user's ear to pass through the opening when the attachment apparatus is coupled to the user. In such embodiments, the opening may include a first opening portion that enables an upper portion of the ear to pass through the opening and a second opening portion that enables a lower portion of the ear to pass through the opening. The attachment body may secure the attachment apparatus to a root of an upper portion of the user's ear received via the first opening portion and to a root of a lower portion of the user's ear received via the second opening portion.

Abstract: An earbud adapter or in-ear monitor includes an Ear Interface that fits the human ear and further permits the wearer of these devices to adjust parameters of the fit. In additional aspects, the Ear Interface portion of these devices permits the user to adjust the transmission of ambient sound. The Ear Interface portion also allows the user to change ornamentation.

Abstract: There is provided a signal processing apparatus including a provision control unit that provides choices expressed subjectively and associated with control for an acoustic signal, and an output unit that outputs a predetermined choice selected from the provided choices.

Abstract: An air conditioner is provided. The air conditioner may include a body including an outlet and an audio collecting device provided on one side of the outlet, the audio collecting device including a microphone that collects audio input. The audio collecting device may include a housing body including an opening in which the microphone is installed, a housing cover provided on one side of the housing body, and a noise insulation space defined by the housing body and the housing cover. The microphone may be received in the noise insulation space.

Abstract: Disclosed is a waterproof earphone structure including a main body with a rear cavity and a front cavity for installing a waterproof module and a shielding module respectively, and a speaker body installed in the main body. The waterproof module includes first and second waterproof elements installed in the rear and front cavities of the main body respectively. This structure not just allows users to sense external sounds only, but also improves low-frequency noise interference and water-resistance. Since the first and second waterproof elements are formed with pores having a diameter smaller than 0.6 mm and arranged apart from one another, external low-frequency noises are suppressed. Further, the effect of surface tension prevents water from entering into waterproof devices or soaking the interior of the earphone. Users enjoy good sound quality since the sound is transmitted through the pores. In addition, the shielding module provides an anti-dust effect.

Abstract: To address issues with present echo gate control, a method and apparatus for more intelligently operating an echo gate is described herein. In particular, the decision of whether to mute an uplink signal, or not, is formulated herein as primarily a perceptual decision based on an appropriate analysis of the perceptual interaction of the current residual echo and the current near-end signal(s). By doing so, the application of muting through an echo gate may be minimized and/or more appropriately engaged. This will lead to fewer dropouts and muting of speech onsets and offsets 1) during periods such as double-talk or 2) during periods of downlink playback in the presence of low near-end signal levels, two cases of particular importance.