Abstract: Methods and systems for designing binaural room impulse responses (BRIRs) for use in headphone virtualizers, and methods and systems for generating a binaural signal in response to a set of channels of a multi-channel audio signal, including by applying a BRIR to each channel of the set, thereby generating filtered signals, and combining the filtered signals to generate the binaural signal, where each BRIR has been designed in accordance with an embodiment of the design method. Other aspects are audio processing units configured to perform any embodiment of the inventive method. In accordance with some embodiments, BRIR design is formulated as a numerical optimization problem based on a simulation model (which generates candidate BRIRs) and at least one objective function (which evaluates each candidate BRIR), and includes identification of a best one of the candidate BRIRs as indicated by performance metrics determined for the candidate BRIRs by each objective function.

Abstract: A loudspeaker module comprising a module casing. A loudspeaker unit body (30) is accommodated within the module casing. The loudspeaker unit body (30) comprises a unit body front cover (32) and a unit body casing (34) which are combined with each other. A vibration system and a magnetic circuit system are accommodated within a space enclosed by the unit body front cover (32) and the unit body casing (34). A plurality of positioning columns (340) are arranged outside sidewalls of the unit body casing (34). Each of the positioning columns (340) protrudes out of the surface of the sidewall of the unit body casing (34), and extends from the upper end of the unit body casing (34) to the lower end of the unit body casing (34) along the sidewall of the unit body casing (34). Positioning bosses (22) are individually arranged at positions on the module casing corresponding to the positioning columns (340).

Abstract: Audio is shifted from being played on a central speaker element to either the right or left side speaker to accommodate a viewer suffering from macular degeneration moving his head to better see the visual display with his peripheral vision. If the user moves his head to the left to use the peripheral vision on the right, the audio is moved to the left speaker. Likewise, if the viewer is moving his head to the right, to take advantage of the peripheral vision on the left, then the audio switches to the right speaker.

Abstract: A computer-readable medium, controller and a method of automatically recording a sound signal is provided. A sound signal is received by the controller from a sound generating device. A frequency of the received sound signal is determined by the controller. When the determined frequency is within a predetermined frequency range, the controller starts recording the received sound signal.

Abstract: Provided is a filter circuit for producing a noise reduction signal for reducing a noise signal collected by a microphone, including: a digital section including an analog/digital conversion section configured to convert the noise signal into a digital noise signal, a digital filter section configured to produce a digital noise reduction signal based on the digital noise signal, and a digital/analog conversion section configured to convert the digital noise reduction signal into an analog noise reduction signal; an analog path connected in parallel to said digital section and configured to output the noise signal as it is or after processed by an analog filter; and a synthesis section configured to synthesize the analog noise reduction signal outputted from said digital/analog conversion section of said digital section and the analog signal outputted from said analog path to produce a noise reduction signal to be used for noise reduction.

Abstract: In order to adjust an electric device, it is proposed to integrate a programmable memory unit into the device and to address said programmable memory unit without enlarging the footprint, via contact areas that are obtained by dividing previous contact areas. In this case, an adjustment value in particular for compensating for a fault tolerance is fed into the memory unit, an operating parameter being readjusted with the aid of said adjustment value. In each case two divided contact areas are short-circuited via a common soldering location during the mounting of the device.

Abstract: An earset, according to various examples, comprises: an electronic device connection unit having a microphone terminal connected to a microphone of the earset, an audio ground terminal connected to an audio ground of the earset, a right speaker terminal, and a left speaker terminal; and a switch for allowing, according to a voltage of the microphone terminal, a right speaker and a left speaker of the earset to be mutually connected with one of the right speaker terminal and the left speaker terminal, and the other one of the right speaker terminal and the left speaker terminal to be connected with a shield ground of the earset. Other examples are possible.

Abstract: An apparatus for processing an encoded audio signal having a plurality of downmix signals associated with a plurality of input audio objects and object parameters E. The apparatus includes a grouper configured to group the downmix signals into groups of downmix signals associated with a set of input audio objects. The apparatus includes a processor configured to perform at least one processing step individually on the object parameters Ek of each set of input audio objects in order to provide group results. Further, there is a combiner configured to combine the group results or processed group results in order to provide a decoded audio signal. The grouper is configured to group the downmix signals so that each input audio object belongs to just one set of input audio objects. The invention also refers to a corresponding method.

Abstract: A device and a method for monitoring behavior of listening to broadcast comprises a transmitter transmitting a characteristic audio signal which is modulated on a carrier signal; a collector collecting an ambient sound; a detector detecting whether the collected ambient sound contains the characteristic audio signal; and a determiner determining whether a broadcast receiving apparatus receives the broadcasting channel corresponding to frequency of the carrier signal according to the result of the detector.

Abstract: The present technique relates to a frequency band extension apparatus, a frequency band extension method, and a program which are configured to more easily obtain a high quality sound signal. An input signal may be divided into sub-band signals of a plurality of sub-bands, powers of high frequency sub-bands of the input signal may be estimated based on feature values extracted from the input signal to obtain high frequency sub-band power estimation values, the high frequency sub-band powers obtained from the sub-band signals of high-frequency sub-bands of the input signal may be compared with the high frequency sub-band power estimation values, and a high-frequency signal of the input signal may be generated based on a result of the comparison and the sub-band signals.

Abstract: A multifunctional headphone cable includes: a connecting line, two ends thereof respectively having an audio connection portion configured with a noise receiving microphone; a controller, configured on the connecting line and including a control circuit, the control circuit being configured with an active noise cancelling (ANC) module in connection with the noise receiving microphone, the control circuit being configured with a hearing amplifier adapted to amplify audio signals, memory module, wireless communication module and wireless charging module; and a power supply unit, configured on the connecting line and in connection with the control circuit.

Abstract: A system and method (referred to as the system) that mitigates feedback in an audio system that adjust voice signals in a vehicle. The system generates transfer function estimates from multiple loudspeakers to multiple microphones and generates maximum forward path frequency-dependent gains based on the transfer function estimates and a frequency-dependent tuning factor for each of the loudspeakers to each of the microphones. The system generates forward path frequency-dependent gains independently that are applied to multiple loudspeaker signals, each of the loudspeaker signals drive one of the loudspeakers, respectively. The forward path frequency-dependent gains are adjusted based on the maximum forward path frequency-dependent gains.

Abstract: An audio amplifier includes an operational amplifier, a replica of an output stage of the operational amplifier, and a feedback circuit configured such that, in a normal mode, an output signal of the operational amplifier is fed back to the input side of the operational amplifier, and such that, in a calibration mode, an output signal of the replica is fed back to the input side of the operational amplifier. The calibration circuit cancels out the offset voltage of the audio amplifier. An adjustment circuit changes the offset of the audio amplifier according to a control signal S1. A control circuit adjusts the control signal such that an output signal VS of the replica is within a predetermined target range in a state in which a predetermined voltage is input to the audio amplifier. Memory stores the control signal S2 acquired in the final stage.

Abstract: When, in conventional sound systems, signals of sounds collected by a microphone are amplified and the amplified signals are applied to an ear by an earphone and a headphone, too loud sounds and environmental noises are unpleasant, and the intelligibility of words are poor. Hence, such problems are to be addressed. In addition, downsizing and performance improvement for sound apparatuses are to be accomplished. A signal having undergone an amplitude limitation with reference to an output potential of a high cut filter 17 which is an output by a low cut filter 12 in a high frequency band and inverted by an inverter 14 is added with, by an adder 15, an output signal from the high cut filter 17, and an addition signal is output.

Abstract: This document describes interactive cords. An interactive cord includes a cable, and fabric cover that covers the cable. The fabric cover includes one or more conductive threads woven into the fabric cover to form one or more capacitive touchpoints which are configured to enable reception of touch input that causes a change in capacitance to the one or more conductive threads. A controller, implemented at the interactive cord or a computing device coupled to the interactive cord, can detect the change in capacitance and trigger one or more functions associated with the one or more capacitive touchpoints. For example, when implemented as a cord for a headset, the controller can control audio to the headset, such as by playing the audio, pausing the audio, adjusting the volume of the audio, skipping ahead in the audio, skipping backwards in the audio, skipping to additional audio, and so forth.

Abstract: A vehicle information presentation device that includes: an acquisition section configured to acquire information about the surroundings of an ego vehicle; a sound pick-up section configured to pick up sound heard by an occupant; a plurality of sound sources configured to emit sound toward the occupant; and a presentation section that, in a case in which another vehicle has been detected from the surroundings information acquired by the acquisition section, presents the occupant with information related to the other vehicle using sound emitted from at least one of the plurality of sound sources by attenuating, from among sound heard by the occupant, sound directed from the other vehicle toward the ego vehicle, based on audio pick-up information on sound picked up by the sound pick-up section.

Abstract: Methods and products for activating a backpack audio-visual system are generally described. In an example, a module in the backpack may detect a presence of a device in a first compartment that may be defined by a first set of walls. In response to the detection, the module may determine a status of a first speaker and a second speaker. The first and second speakers may be inside of a second compartment and a third compartment, respectively. The second and third compartments may be defined by a second and a third set of walls, respectively. Based on the presence of the device in the first compartment and the status of the first and second speakers, the module may establish a wireless communication link between the device and the first and second speakers. The backpack audio-visual system may be activated in response to the establishment of the wireless communication link.

Abstract: Methods, systems, and computer readable media for utilizing ray-parameterized reverberation filters to facilitate interactive sound rendering are disclosed. According to one method, the method includes generating a sound propagation impulse response characterized by a plurality of predefined number of frequency bands and estimating a plurality of reverberation parameters for each of the predefined number of frequency bands of the impulse response. The method further includes utilizing the reverberation parameters to parameterize a plurality of reverberation filters in an artificial reverberator, rendering an audio output in a spherical harmonic (SH) domain that results from a mixing of a source audio and a reverberation signal that is produced from the artificial reverberator, and performing spatialization processing on the audio output.

Abstract: A method, medium, and apparatus with scalable channel decoding. The method includes recognizing the configuration of channels or speakers, calculating the respective number of same path decoding levels for each multi-channel signal using the recognized configuration of the channels or speakers, and performing decoding and up-mixing according to the calculated respective number of decoding levels.

Abstract: A system and method for providing sound-data indicative of an audible sound to be produced and location-data indicative of a designated spatial location at which the audible sound is to be produced; and utilizing the sound-data and determining frequency content of ultrasound beams to be transmitted by an acoustic transducer system including an arrangement of ultrasound transducer elements for generating said audible sound. The ultrasound beams include primary audio modulated ultrasound beam(s), whose frequency contents includes ultrasonic frequency components selected to produce the audible sound after undergoing non-linear interaction in a non-linear medium, and additional ultrasound beam(s) each including ultrasonic frequency component(s).