Abstract: Example audio signal processing apparatuses and methods for processing an input audio signal into an output audio signal are disclosed. An example audio signal processing apparatus comprises a decomposer configured to decompose the input audio signal into a direct audio signal and a diffuse audio signal, a modifier configured to modify the direct audio signal in order to obtain a modified direct audio signal, wherein the modifier comprises a bandwidth extender configured to extend an upper cutoff frequency of a frequency range of the direct audio signal, and a combiner configured to combine the modified direct audio signal with the diffuse audio signal to obtain the output audio signal.

Abstract: An ear wearable device comprising: a housing comprising a portion shaped to be inserted into a concha of the ear, a speaker disposed inside the housing and configured to be disposed in an auditory canal when the housing is inserted into the concha of the ear, a button emerging from a hole formed in the housing, an elastic member disposed in the housing and elastically resisting an external force against the button; and a movable member including a portion protruding through an opening formed in the housing, and configured to be pushed into the opening or pulled away from the opening such that the protruding portion can be pushed or pulled when the button is pressed.

Abstract: A circumaural earphone including a headband, an adjustment mechanism, a rod, and an earphone module assembled to the rod is provided. The adjustment mechanism disposed at an end of the headband includes a housing and a pivoting ring assembled in the housing to be rotatable about an axis relative to the housing. The rod is disposed rotatably through the pivoting ring and the housing along the axis, wherein the rod and the pivoting ring are adapted to each other structurally for the rod to drive the pivoting ring to rotate about the axis synchronously. The earphone module is disposed on the rod.

Abstract: A support device adapted to support an electronic device is provided. The electronic device has a display surface. The support device includes a base, a support frame, and at least one torque fixing assembly. The base includes a first arc surface portion. The support frame includes a second arc surface portion opposite to the first arc surface portion and an axis. The support frame rotates along the axis such that the second arc surface portion slides relative to the first arc surface portion and the electronic device switches between a first use state and a second use state. The torque fixing assembly is disposed at the first arc surface portion and the second arc surface portion. When the second arc surface portion slides relative to the first arc surface portion, the second arc surface portion rubs against the torque fixing assembly and torque is generated.

Abstract: A method and apparatus for evaluating audio device for evaluating performance of an audio device by inputting into the audio device an audio signal having a waveform in which a plurality of waves with different frequency components are superimposed, comparing the sound waveform before the input and the sound waveform after the input, and finding the degree of conformity therebetween. An audio device is characterized in that, with sound field correction as a precondition, low-pitch ranges can be reproduced by using numerous small-diameter speakers, a single one of which is insufficient to reproduce low-pitch ranges despite good group delay characteristic, and outstanding waveform reproducibility can be achieved by covering the periphery of the speakers with sound-absorbent material so as to remove noise emitted by surfaces other than the front surface of cone paper.

Abstract: The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower t

Abstract: A loudspeaker comprises a circuit board which mounts a number of light units each including multiple LEDs in a position so that when illuminated they are visible though a transparent or translucent diaphragm and protected from exposure to the environment external to the loudspeaker.

Abstract: The present technology relates to a transaural processing unit that performs a predetermined transaural process for an input signal by using a sound source opposite side HRTF and a sound source side HRTF to generate a first acoustic signal and a second acoustic signal. The second acoustic signal contains attenuated components in a first band and a second band. The first band is the lowest band and the second band is the second lowest band in a range of a first frequency or higher frequencies, in bands of appearance of notches in the sound source opposite side HRTF. A subsidiary signal synthesis unit adds a first subsidiary signal constituted by a component in a band of the second acoustic signal to the first acoustic signal to generate a third acoustic signal. The present technology is applicable to an AV amplifier, for example.

Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing an audio signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing binaural rendering for reproducing multi-channel or multi-object audio signals in stereo with a low calculation amount.

Abstract: A sound quality determination device includes an acquisition unit acquiring an input sound, a frequency distribution calculation unit calculating a frequency distribution of the input sound acquired by the acquisition unit, a tilt calculation unit calculating a tilt indicating a change in intensity of an overtone with respect to a frequency based on the frequency distribution calculated by the frequency distribution calculation unit, a tilt comparison unit comparing the tilt calculated by the tilt calculation unit and a threshold related to the tilt, and a determination unit determining based on a result of comparison by the tilt comparison unit whether the input sound has a predetermined sound quality.

Abstract: A wireless communications headset system for double hearing protection systems that eliminates the problems associated with typical wireless communications systems. The system employs a magnetic-field coupled wireless link from a loop transmitter to a magnetic field receiver. Current through the transmitter wire loops generates magnetic flux which passes through a communications earplug. The earplug has a receiver for converting the magnetic flux to electrical voltage, and this voltage is used to drive a speaker within the earplug. The transmitter can be easily installed into aviation headsets. The loop transmitter has an open center sized so that it fits around the pinna of the human ear enabling a close position to the communications earplug. This close position is advantageous if an efficient system is desired.

Abstract: A content delivery apparatus includes an external input portion, a content reception portion and a delivery portion. To the external input portion, first content having at least a fundamental component is inputted. The content reception portion receives second content having a fundamental component and an extended component. When delivering the first content, the delivery portion delivers the fundamental component of the first content to a client apparatus more than once.

Abstract: A headphone, headphone system, and method is provided to enhance speech pick-up from a user of a headphone, by removing noise and echo components. A primary signal is derived from at least one microphone associated with the headphone. The primary signal is configured to include a component of speech from the user. A noise reference signal is representative of acoustic noise in the environment of the headphone. A playback signal is provided by an audio source to be rendered by an acoustic driver associated with the headphone, and an echo reference signal is representative of the playback signal. The systems and methods filter the primary signal to reduce noise and echo components, based on the noise reference signal and the echo reference signal, respectively, to provide a voice estimate signal.

Abstract: Embodiments for manipulating an audio environment by a processor. A noncalibrative stimulus is detected in the audio environment. In response to the detected noncalibrative stimulus, a component in the audio environment is caused to modify an audio characteristic in order to change a physical property of sound generated in the audio environment.

Abstract: Provided are method and apparatus for evaluating audio device for evaluating performance of an audio device by inputting into the audio device an audio signal having a waveform in which a plurality of waves with different frequency components are superimposed, comparing the sound waveform before the input and the sound waveform after the input, and finding the degree of conformity therebetween. An audio device of the present invention is characterized in that, with sound field correction as a precondition, low-pitch ranges can be reproduced by using numerous small-diameter speakers, a single one of which is insufficient to reproduce low-pitch ranges despite good group delay characteristic, and outstanding waveform reproducibility can be achieved by covering the periphery of the speakers with sound-absorbent material so as to remove noise emitted by surfaces other than the front surface of cone paper.

Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.

Abstract: A loudspeaker diaphragm includes a main material containing molecules each having a hydroxyl group, and a diamondoid derivative. The diamondoid derivative contains molecules each having two or more hydrogen-bonding functional groups. Each of the two or more hydrogen-bonding functional groups in each of the molecules of the diamondoid derivative is bonded to the hydroxyl group in each of the molecules of the main material.

Abstract: A frequency domain converter divides an input signal for each predetermined frame, and generates a first signal X(f, ?) for each first frequency division unit. A noise estimation signal generator generates a signal Y(f, ?) for each second frequency division unit wider than the first frequency division unit. A signal comparator calculates a representative value for each second frequency division unit based on the signal Y(f, ?) stored in a storage unit, and compares the representative value and the signal Y(f, ?) with each other for each second frequency division unit. A mask generator generates a mask M(f, ?), which determines a degree of suppression or emphasis for each first frequency division unit, based on a peak range of the signal X(f, ?), and a comparison result by the signal comparator. The mask application unit multiplies the signal X(f, ?) by the mask M(f, ?).

Abstract: An ear shape analyzer includes: a sample ear analyzer configured to generate, for each of N sample ears, an ear shape data set that represents a difference between a point group representative of a three-dimensional shape of a reference ear and a point group representative of a three-dimensional shape of one of the N sample ears; an averaging calculator configured to generate averaged shape data by averaging N ear shape data sets generated by the sample ear analyzer; an ear shape identifier configured to identify an average ear shape of the N sample ears by translating coordinates of respective points of the point group representing the three-dimensional shape of the reference ear, by using the averaged shape data.

Abstract: Methods and audio processing units for generating an object based audio program including conditional rendering metadata corresponding to at least one object channel of the program, where the conditional rendering metadata is indicative of at least one rendering constraint, based on playback speaker array configuration, which applies to each corresponding object channel, and methods for rendering audio content determined by such a program, including by rendering content of at least one audio channel of the program in a manner compliant with each applicable rendering constraint in response to at least some of the conditional rendering metadata. Rendering of a selected mix of content of the program may provide an immersive experience.