Abstract: Described is a method of processing position information indicative of an object position of an audio object, wherein the object position is usable for rendering of the audio object, that comprises: obtaining listener orientation information indicative of an orientation of a listener's head; obtaining listener displacement information indicative of a displacement of the listener's head; determining the object position from the position information; modifying the object position based on the listener displacement information by applying a translation to the object position; and further modifying the modified object position based on the listener orientation information. Further described is a corresponding apparatus for processing position information indicative of an object position of an audio object, wherein the object position is usable for rendering of the audio object.

Abstract: To enable channel setting to be performed easily and accurately to speakers. Thus, provided is a speaker system including: N number of speakers, the N being three or more; and a signal processing device capable of communicating with each speaker. The signal processing device performs processing of recognizing two arrangement reference speakers with reception of notification that a designation operation has been received from a user, from two speakers among the N number of speakers, and processing of acquiring distance information between each speaker. The signal processing device recognizes a relative-position relationship between the N number of speakers, with the two arrangement reference speakers and the distance information between each speaker. Then, the signal processing device automatically sets a channel to each speaker, on the basis of the relative-position relationship recognized.

Abstract: Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column. In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.

Abstract: A captured image obtaining unit 50 of an output control device 10 obtains a captured image such as a polarization image from an imaging device 12. A space information obtaining unit 54 obtains a normal line and a position of a surface of an actual object in a space and a sound absorption coefficient at the surface. A correction coefficient obtaining unit 56 calculates energy of sound reaching a listener including sound reflected at the actual object and obtains a correction coefficient to be given to a level of a sound signal on the basis of the sound energy. An output unit 60 adjusts the sound signals by using the correction coefficient 62 and outputs the adjusted sound signals to speakers 16a and 16b.

Abstract: The present technology relates to an information processing apparatus, a method, and a program that can create a great sense of realism with a small number of computations. An information processing apparatus includes a gain determination section that determines an attenuation level on the basis of a positional relationship between a given object and another object and determines a gain of a signal of the given object on the basis of the attenuation level. The present technology is applicable to a signal processing apparatus.

Abstract: An object is to acquire a head-related transfer function reproducing features of a head-related transfer function of a listener without actually measuring the head-related transfer function of the listener.

Abstract: An audio reproduction device and method for audio control based on room-correction (RC) and head related transfer function (HRTF) are provided. The audio reproduction device includes a speaker that reproduces a first audio signal. The audio reproduction device receives a plurality of second audio signals indicative of frequency responses captured based on the first audio signal and captured by a plurality of audio capturing devices positioned on a head wearable device of a user present within an enclosed physical space. The audio reproduction device determines RC preset for one or more RC filters associated with the speaker, based on the captured frequency responses. The audio reproduction device further determines HRTF associated with the user based on the captured frequency responses, and user-specific information of the user. The audio reproduction device further controls audio reproduction of the speaker based on the determined RC preset and the determined HRTF.

Abstract: Reverberation techniques for 3D audio are disclosed. In an example method, a three-dimensional (3D) reverberation is applied to a sound object placed at a sound object position in a sound room. The sound object originates from a sound object position. A sound object signal is received. A 3D spatial room response (SRR) signal is computed corresponding to the user-selected position. A time convolution operation is performed between an audio signal of the sound object signal and the computed SRR value to generate a reverberated signal.

Abstract: A system and method for optimizing the low-frequency sound rendition of an audio signal, implementing variations in a plurality of parameters of the audio signal according to the volume level of the signal chosen by a user, in particular filtering or compression parameters, or parameters relating to the harmonics of the audio signal, while seeking to optimize the dynamics and the bandwidth of the audio signal according to the volume, in order to provide an optimal rendition to the user.

Abstract: A method processes binaural sound to externally localize to a first user at a first location. This location is shared such that an electronic device processes the binaural sound to externally localize to a second user at a second location. The first and second locations occur at a same or similar location such that the first and second users hear the binaural sound as originating from the same or similar location.

Abstract: A soundbar with a housing and a plurality of acoustic radiators carried by the housing and configured to output sound for at least left, right, and center audio channels, wherein at least one of the acoustic radiators comprises a dipole acoustic radiator that is configured to emit sound in opposite directions along a main radiation axis.

Abstract: Some disclosed methods involve encoding or decoding directional audio data. Some encoding methods may involve receiving a mono audio signal corresponding to an audio object and a representation of a radiation pattern corresponding to the audio object. The radiation pattern may include sound levels corresponding to plurality of sample times, a plurality of frequency bands and a plurality of directions. The methods may involve encoding the mono audio signal and encoding the source radiation pattern to determine radiation pattern metadata. Encoding the radiation pattern may involve determining a spherical harmonic transform of the representation of the radiation pattern and compressing the spherical harmonic transform to obtain encoded radiation pattern metadata.

Abstract: A vehicle includes a first voice output section, a second voice output section, and a third voice output section which are arranged side by side in a vehicle width direction of the vehicle. If the vehicle speed is a first threshold or less, the vehicle causes at least one of the first voice output section, second voice output section, and third voice output section to output noise sound.

Abstract: An audio processor for providing loudspeaker signals on the basis of input signals, like channel signals and/or object signals, obtains an information about the position of a listener and an information about the position of a plurality of loudspeakers, or sound transducers. The audio processor selects one or more loudspeakers for a rendering of the objects and/or of the channel objects and/or of the adapted signals, derived from the input signals. The selection depends on the information about the position of the listener and about the positions of the loudspeakers and takes into consideration the information about one or more acoustic obstacles. The audio signal processor renders the objects/channel objects/adapted signals derived from the input signals, in dependence on the information about the position of the listener and about positions of the loudspeakers, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.

Abstract: Systems and processes for operating an intelligent automated assistant are provided. An examples process of operating an intelligent automated assistant includes, at an electronic device with one or more processors and memory, receiving audio input, determining a direct-to-reverberant energy ratio based on the audio input, and determining a head pose of a user based on the direct-to-reverberant energy ratio.

Abstract: An audio system in a local area providing an audio signal to a headset of a remote user is presented herein. The audio system identifies sounds from a human sound source in the local area, based in part on sounds detected within the local area. The audio system generates an audio signal for presentation to a remote user within a virtual representation of the local area based in part on a location of the remote user within the virtual representation of the local area relative to a virtual representation of the human sound source within the virtual representation of the local area. The audio system provides the audio signal to a headset of the remote user, wherein the headset presents the audio signal as part of the virtual representation of the local area to the remote user.

Abstract: Methods and apparatus assist listeners in distinguishing between electronically generated binaural sound and physical environment sound while the listener wears a wearable electronic device that provides the binaural sound to the listener. The wearable electronic device generates a visual alert or audio alert when the electronically generated binaural sound occurs.

Abstract: An apparatus for mapping a first input channel and a second input channel of an input channel configuration to at least one output channel of an output channel configuration, wherein each input channel and each output channel has a direction in which an associated loudspeaker is located relative to a central listener position, configured to map the first input channel to a first output channel of the output channel configuration; and despite of the fact that an angle deviation between a direction of the second input channel and a direction of the first output channel is less than an angle deviation between a direction of the second input channel and the second output channel and/or is less than an angle deviation between the direction of the second input channel and the direction of the third output channel, map the second input channel to the second and third output channels by panning between the second and third output channels.

Abstract: The present disclosure provides a method for playing audio data, and belongs to the field of computer technology. The method includes: in a process of playing audio, partitioning left-channel audio data of the audio into audio data of a preset number of frequency sub-bands and partitioning right-channel audio data of the audio into audio data of the preset number of frequency sub-bands; calibrating the left-channel audio data of respective frequency sub-bands with left-channel calibration parameter values of respective frequency sub-bands to obtain left-channel audio data to be played; calibrating the right-channel audio data of respective frequency sub-bands with right-channel calibration parameter values of respective frequency sub-bands to obtain right-channel audio data to be played; and playing, over a left channel, the left-channel audio data to be played, and playing, over a right channel, the right-channel audio data to be played.

Abstract: An audio processor for providing loudspeaker signals on the basis of input signals, like channel signals and/or object signals, obtains an information about the position of a listener and an information about the position of a plurality of loudspeakers, or sound transducers. The audio processor selects one or more loudspeakers for a rendering of the objects and/or of the channel objects and/or of the adapted signals, derived from the input signals. The selection depends on the information about the position of the listener and about the positions of the loudspeakers and takes into consideration the information about one or more acoustic obstacles. The audio signal processor renders the objects/channel objects/adapted signals derived from the input signals, in dependence on the information about the position of the listener and about positions of the loudspeakers, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.

Abstract: Disclosed is a system configured to determine filter parameters of an audio precompensation filter for the compensation of an associated sound generating system having at least two loudspeakers. The system is configured to obtain sound field models describing the sound field in at least one region of space designated the bright zone and the sound field in at least one region of space designated the dark zone. The system is also configured to obtain a target sound field in the bright zone. Further, the system is configured to determine filter parameters of the audio precompensation filter so that a criterion function is optimized under the constraint of causality and stability of the dynamics of the audio precompensation filter to enable reproduction of a desired target sound field in the bright zone, while reproducing as little sound as possible in the dark zone.

Abstract: Provided is an information processing device that processes a dialogue of an audio agent. The information processing device includes an acquisition unit that acquires audio information of an agent device that is played back through interaction with a user and audio information of other contents different from the audio information of the agent device, and a controller that performs sound field control processing on an audio output signal based on the audio information of the agent device acquired by the acquisition unit. The controller performs wavefront composition of pieces of audio output from a plurality of speakers, controls a sound field of the agent device, and avoids mixing with the other contents different from the audio information of the agent device.

Abstract: Techniques are provided to transform external sound from an external position of an external audio space to an internal position of an internal audio space where the external sound would be heard naturally. The techniques involve capturing the external sound with a microphone and processing the captured external sound to appear as if it was captured at the internal position of the internal audio space, which may correspond to an output of a driver or a user's eardrum. Then the processed captured external sound may be conditioned for the individual user or further combined with conditioned audio content to create an augmented audio experience for the user. Any combination of the techniques can be implemented in real time.

Abstract: Systems and methods are disclosed for modelling of individual acoustic transfer functions relative to the audition of an individual in three-dimensional space. A method is provided for modelling sets of acoustic transfer functions specific to an individual according to a multiplicity of directions in space, where a set of acoustic transfer functions specific to the individual in a given direction is determined depending on the result of a statistical analysis of a plurality of distinct stimuli emitted in the direction of the individual. A stimulus can be dependent on at least one set of predetermined acoustic transfer functions that are associated with the given direction, and on responses received from the individual to each emitted stimulus.

Abstract: A camera input can be used by the computer to support audio spatialization or to improve audio spatialization of an application that already supports it. A computer system may to support audio spatialization, for example, by modifying the relative latency or relative amplitude of the rendered audio packets. If a sound is intended, for example, to be located on the left side of the user, then the audio channel that is rendered on the headset speaker located on the user's left ear may have a somewhat decreased latency and increased amplitude compared to the other audio channel.

Abstract: Embodiments relate to audio processing for opposite facing speaker configurations that results in multiple optimal listening regions around the speakers. A system includes a left speaker and a right speaker in an opposite facing speaker configuration, and a crosstalk cancellation processor connected with the left speaker and the right speaker. The crosstalk cancellation processor applies a crosstalk cancellation to an input audio signal to generate left and right output channels. The left output channel is provided to the left speaker and the right output channel is provided to the right speaker to generate sound including multiple crosstalk cancelled listening regions that are spaced apart.

Abstract: An audio signal processing device includes a memory; and a processor configured to execute receiving a command to determine one set of parameters from among parameters calculated according to positions at which a sound is localized, the positions being set relative to positions of audio output devices; and processing a sound to be output from the audio output devices, by using the one set of parameters determined based on the received command.

Abstract: An apparatus includes a processor configured to receive one or more media signals associated with a scene. The processor is also configured to identify a spatial location in the scene for each source of the one or more media signals. The processor is further configured to identify audio content for each media signal of the one or more media signals. The processor is also configured to determine one or more candidate spatial locations in the scene based on the identified spatial locations. The processor is further configured to generate audio to playback as virtual sounds that originate from the one or more candidate spatial locations.

Abstract: This disclosure relates to techniques for generating physically accurate auralization of sound propagation in complex environments, while accounting for important wave effects, such as sound absorption, sound scattering, and airborne sound insulation between rooms. According to some embodiments, techniques may be utilized to determine more accurate, e.g., “acoustically-effective” room volumes that account for open windows, open doors, acoustic dead space, and the like. According to other embodiments disclosed herein, techniques may be utilized to perform optimized hybrid acoustical ray tracing, including grouping coherent rays by processing core.

Abstract: The present invention relates to a method and an apparatus for binaural rendering an audio signal using variable order filtering in frequency domain. To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving a set of truncated subband filter coefficients for filtering each subband signal of the input audio signal, the set of truncated subband filter coefficients being constituted by one or more FFT filter coefficients generated by performing FFT by a predetermined block size; generating at least one subframe for each subband; generating at least one filtered subframe for each subband; performing inverse FFT on the filtered subframe for each subband; and generating a filtered subband signal by overlap-adding the transformed subframe for each subband and an apparatus for processing an audio signal using the same.

Abstract: Appropriate audio processing is selected. A signal processing apparatus includes: an audio signal output unit that outputs a plurality of test sounds in a superimposed manner; a controller that prompts a listener to select a test sound having a specific sense of localization out of the plurality of test sounds; a receiver that acquires results of the selection made by the listener; and an audio signal processing unit that performs audio signal processing associated with the results of the selection on an input signal.

Abstract: Media content playback is based on an identified geographic location of a sound source. A geolocation of a target venue is determined. A first geolocation of a media playback device is determined. An indication that the media playback device is within a threshold distance of the target venue is received. Media content associated with the target venue is transferred to the media playback device, wherein one or more characteristics of the media content are dynamically modified to simulate audio originating from the target device. The one or more characteristics of the media content can include audio content characteristics associated with a timing filter, a loudness filter, and a timbre filter.

Abstract: An auditory attention tracking system may modify external sounds in a manner that enables the system to detect, from EEG readings taken while a user listens to the modified sounds, which sound the user is paying attention to. Multiple microphones may record external sounds, and the sounds may be separated. A computer may modify one or more of the sounds, then remix the sounds, and then cause speakers to audibly output the modified, remixed sound. EEG measurements may be taken while the user listens to this modified sound. A computer may detect patterns in the EEG readings and may, based on the patterns, predict which external sound the user is paying attention to. The system may further modify the external sounds, to make the sound of interest more perceptually prominent. Or, based on the detected sound of interest, the system may modify a human-computer interaction.

Abstract: An apparatus and method of rendering audio. The method includes deriving filters by defining a binaural error, defining an activation penalty, and minimizing a cost function that is a combination of the binaural error and the activation penalty. In this manner, the listening experience is improved by reducing the signal level output by loudspeakers further from an audio object's desired position.

Abstract: A portable electronic device (PED) divides an area around a user into a three-dimensional (3D) zone. A wearable electronic device worn on a head of the user displays the 3D zone in response to the wearable electronic device detecting that the user is leaving the zone. The wearable electronic device plays binaural sound that emanates to the user from sound localization points (SLPs) inside the zone.

Abstract: A system includes a first communication system and a second communication system, each with a microphone, an array of speakers arranged to encircle a user of the communication system, a controller, and an array of antenna elements. In each communication system, the array of antenna elements transmits and receives over 360 degrees together, a positional correspondence between the array of speakers and the array of antenna elements is fixed, and the controller controls audio to be output only by speakers among the first array of speakers that correspond to antenna elements among the first array of antenna elements that receive communication.

Abstract: A system and method for providing user location-based multi-zone media. As a non-limiting example, various aspects of this disclosure provide a system and method that flexibly presents media content (e.g., audio content) to a user as the user moves throughout a premises. As a non-limiting example, various aspects of this disclosure provide a system and method that flexibly presents media content (e.g., audio content) to a user as the user moves throughout a premises.

Abstract: This application discloses an image display method performed at an electronic device. The electronic device obtains a target location of a virtual object in a map scene displayed on a screen of the electronic device. After identifying a virtual building within a preset range centered on the target location, the electronic device gradually decreases the virtual building from a display height of the virtual building to a first target display shape of the virtual building. Next, the electronic device displays the first target display shape of the virtual building in the map scene. In response to a movement of the virtual object in the map scene, the electronic device gradually resumes the virtual building from the first target display shape to the display height when the virtual building is outside the preset range centered on the updated target location of the virtual object in the map scene.

Abstract: Electronic gaming machines that optimize audio during game play or otherwise based on a determined ear structure of a player, and in various embodiments also on a determined location of the player's ear in real-time.

Abstract: The present document describes a method (600) for estimating source parameters of audio sources (101) from mix audio signals (102), with. The mix audio signals (102) comprise a plurality of frames. The mix audio signals (102) are representable as a mix audio matrix in a frequency domain and the audio sources (101) are representable as a source matrix in the frequency domain. The method (600) comprises updating (601) an un-mixing matrix (221) which is configured to provide an estimate of the source matrix from the mix audio matrix, based on a mixing matrix (225) which is configured to provide an estimate of the mix audio matrix from the source matrix. Furthermore, the method (600) comprises updating (602) the mixing matrix (225) based on the un-mixing matrix (221) and based on the mix audio signals (102). In addition, the method (600) comprises iterating (603) the updating steps (601, 602) until an overall convergence criteria is met.

Abstract: Head-tracking comprises remixing audio input data or channels to discrete device audio reproduction channels, to alter the audio input data or channels' perceived location in 3D space, in a manner compensating for relative head movement (compensatory manner), based upon provided head location data. Phase (delay) of the desired audio input data or channels is altered to shift the perceived sonic image location in 3D space, in a compensatory manner that correlates to a desired location relative to a designated device reference point. Amplitude of the desired audio input data or channels is altered to shift a perceived sonic image location in 3D space, in a compensatory manner that correlates to the desired location relative to the designated device reference point. Altering phase (delay) is performed using a constant delay function for each of the desired audio input data or channels that is independently varied based on current head location data.

Abstract: A sound signal processor includes a memory storing instructions and a processor configured to implement the stored instructions to execute a plurality of tasks, the tasks including a sound signal input task configured to obtain a sound signal, a beat detection task configured to detect a beat in the sound signal, and a processing task configured to perform an effect processing on the sound signal in accordance with a timing of the detected beat.

Abstract: Disclosed are devices, systems and methods for binaural spatial audio processing based on a pair of head-related transfer functions (HRTFs) for each of a listener's two ears to synthesize a binaural sound that seems to come from a particular point in space. Applications of the disclosed devices, systems and methods include digital audio reproduction, recording, and multimedia applications including virtual reality and augmented reality experiences.

Abstract: Examples of the disclosure describe systems and methods for presenting an audio signal to a user of a wearable head device. According to an example method, a source location corresponding to the audio signal is identified. An acoustic axis corresponding to the audio signal is determined. For each of a respective left and right ear of the user, an angle between the acoustic axis and the respective ear is determined. For each of the respective left and right ear of the user, a virtual speaker position, of a virtual speaker array, is determined, the virtual speaker position collinear with the source location and with a position of the respective ear. The virtual speaker array includes a plurality of virtual speaker positions, each virtual speaker position of the plurality located on the surface of a sphere concentric with the user's head, the sphere having a first radius.

Abstract: Systems and methods are described for detecting and remedying potential incongruence in a video conference. A camera of a video conferencing system may capture video images of a conference room. A processor of the video conferencing system may identify locations of a plurality of participants within an image plane of a video image. Using face and shape detection, a location of a center point of each identified participant's torso may be calculated. A region of congruence bounded by key parallax lines may be calculated, the key parallax lines being a subset of all parallax lines running through the center points of each identified participant. When the audio device location is not within the region of congruence, audio captured by an audio device may be adjusted to reduce effects of incongruence when the captured audio is replayed at a far end of the video conference.

Abstract: In general, various aspects of the techniques are directed to audio rendering for low frequency effects. A device comprising a memory and a processor may be configured to perform the techniques. The memory may store audio data representative of a soundfield. The processor may analyze the audio data to identify spatial characteristics of low frequency effects components of the soundfield, and process, based on the spatial characteristics, the audio data to render a low frequency effects speaker feed. The processor may also output the low frequency effects speaker feed to a low frequency effects capable speaker.

Abstract: Systems and methods for using auditorily-induced vection (AIV) to enhance a person's attitude awareness are provided herein. In at least one embodiment, an auditory object is projected based on the orientation of the person or a vehicle and the projected auditory is provided to the person. By projecting the auditory object, the attitude of the person or the vehicle can be conveyed to the person to enhance the person's attitude awareness.

Abstract: Methods and systems for more efficient analyses of and response to voice commands and queries are provided. The system may be configured to receive one or more of audio files corresponding to a voice query and determine, for each of the audio files, whether the audio file is a first type of audio file capable of being processed based on a characteristic of the audio file or a second type of audio file that cannot, and may require further processing in order to recognize the voice query associated with the audio file. The system may process each of the first type of audio files and respond to the associated voice queries. The system may also determine a priority for each of the second type of audio files for further processing of the second type of audio files.

Abstract: A system can include a position sensor configured to output position data of a HWD. The system can include one or more processors configured to identify a first head angle of the HWD using the position sensor, generate an audio signal using the first head angle, identify a second head angle of the HWD using the position sensor, determine an angle error based at least on the first head angle and the second head angle, and apply at least one of a time difference or a level difference to the audio signal based at least on the angle error to adjust the audio signal. The system can include an audio output device configured to output the adjusted audio signal. By adjusting the audio signal using the angle error, the system can correct for long spatial update latencies and reduce the perceptual impact of such latencies for the user.

Abstract: An audio system and method of using the audio system to augment spatial audio rendition is described. The audio system can include a device to receive user inputs designating positions on an augmented reality view of a listening environment. Sound source icons can be presented in the augmented reality view at the designated positions. The sound source icons can visually represent sound sources at locations in the listening environment that correspond to, but are different than, the positions. One or more processors of the audio system can apply head-related transfer functions, which correspond to the locations in the listening environment, to audio input signals to generate binaural audio signals. The audio system can include a headset that uses the binaural audio signals to render spatialized audio localizing sounds to the locations in the listening environment. Other aspects are also described and claimed.