Abstract: Disclosed are a sound sharing apparatus and a sound sharing method. The sound sharing apparatus according to one embodiment of the present disclosure includes at least one processor configured to implement: a modifier configured to change a default audio render driver of a local machine from a first audio render driver to a second audio render driver; a capturer configured to capture audio data transmitted to the second audio render driver; and a mixer configured to mix the captured audio data: i) with first voice data to output first mixed data, wherein the first voice data is received from a remote machine connected to the local machine through a network, or ii) with second voice data to output second mixed data, wherein the second voice data is received input through a microphone of the local machine.

Abstract: Techniques of performing involve providing interactive audio in addition to ambisonic audio in stereo tracks selected according to the occurrence of events in a media delivery system. For example, a user of a VR system observes a virtual environment that contains many virtual objects. The user may experience binaurally rendered audio played over N ambisonic channels from any number of virtual loudspeakers. In addition, the user may also activate another audio source by positioning his/her head at a certain angle, e.g., to look at a particular virtual object. As a specific example, when the user looks at a picture of a person, an audio track may play over a pair of stereo channels N+1 and N+2. Because they are stereo channels, there is no need to perform convolutions with HRTFs. In this way, audio may be provided for all virtual objects in the virtual environment with a small computational overhead.

Abstract: Techniques are provided for Head-Related Transfer Function (HRTF) measurement and sharing for audio applications. A methodology implementing the techniques according to an embodiment includes receiving a plurality of three-dimensional (3D)images of a user. The images are generated by a 3D camera or other image capture device, and each image is associated with a unique viewing angle or perspective of the user. The method also includes generating a 3D volume based on the 3D images and then generating a 3D mesh surface based on the 3D volume. The method further includes computing HRTFs associated with the user, based on the 3D mesh surface. Additionally, techniques are disclosed to provide a platform for sharing of the calculated HRTFs between audio applications executing on different devices.

Abstract: A processor-implemented method for sound-source enhancement, including: capturing a signal from a sound source using a sensor array having a plurality of sensors, the sensor array being positioned between the sound source and the reflective surface; calculating a half-space propagation model by determining a modified steering vector associated with a plane sound wave produced by the sound source as a function of signal direction and the reflectivity value; calculating a half-space spatial coherence model by dividing a sphere with its center on the reflecting surface into two mirror symmetric parts intersected by a plane to create two half spheres; creating a half-space signal-enhancement module using the half-space propagation model and the half-space coherence model; and applying the half-space signal-enhancement module to the signal.

Abstract: A method for re-forming a complete ring network of a plurality of Bluetooth® speakers, after a speaker has left an original ring of speakers, the method including detecting that the speaker has left the ring, and reestablishing the ring without the departed speaker. The detection may include a timeout detection if the speaker left without notice, or include receiving notice that the speaker intends to leave.

Abstract: A vehicle sound effect generation apparatus includes a running state detecting unit that detects a running state of a vehicle, an adjustment wave sound selector that selects one or more adjustment wave sounds having a half-order frequency component or an integer-order frequency component, a sound effect generation unit that synthesizes a fundamental wave sound having a fundamental frequency component with the one or more adjustment wave sounds selected by the adjustment wave sound selector, and an inhibition condition determining unit that can determine a condition that correspondence between an amount of an operation performed by a vehicle occupant and a behavior of the vehicle is inhibited. When the inhibition condition determining unit determines the condition that the correspondence between the amount of the operation and the behavior of the vehicle is inhibited, the adjustment wave sound selector reduces the output characteristics of the adjustment wave sounds selected.

Abstract: The present invention relates to a method and an apparatus for processing an audio signal, and more particularly, to a method and an apparatus for processing an audio signal, which synthesizes an object signal and a channel signal and effectively binaural-render the synthesized signal.

Abstract: A first sound is output by a first transducer in an earcup located at a pinna. Respective second sound based on the output of the first audio sound is detecting by each of one or more microphones in the earcup located at the pinna. Based on the respective detected second sound, a non-linear transfer function is determined which characterizes how sound is transformed via the pinna. A signal indicative of one or more audio cues for spatializing third sound is generated based on the determined non-linear transfer function.

Abstract: A content output apparatus, methods for controlling a content apparatus, and a mobile apparatus are provided. The content output apparatus includes a receiver configured to receive content, a display configured to output a video signal of the content, a speaker configured to output an audio signal of the content, a communicator configured to transmit the audio signal to at least one external speaker, and a controller configured to determine whether the audio signal is related to the video signal, and display a user interface screen for inducing a selection of an output mode which transmits the audio signal to the at least one external speaker with a communication method corresponding to the determination result among a plurality of output modes via the display.

Abstract: A voice command may be received from a microphone device associated with a media playback system comprising one or more zones. An audio response zone from the one or more zones to play the audio response may be selected based on context information. The selected zone may comprise one or more playback devices. At least one playback device of the one or more playback devices of the selected zone may be caused to play the audio response.

Abstract: A signal processing system for controlling a lower frequency acoustic range of an acoustic output of a loudspeaker system. The system includes an input to receive at least a first channel audio signal, corresponding to the acoustic output of at least one loudspeaker with at least one electro-acoustic transducer with a vibratile diaphragm. The signal processing system includes at least one transpositional gain controller processor for transposition of at least a portion of the amplitude of at least one band of frequencies in a lower frequency audio signal range of the audio signal, to an increased gain in at least one transpositional target frequency in the lower frequency audio signal range. The transpositional gain controller processor includes at least one of at least one, static or dynamic, transpositional gain controller. The system may include at least one additional signal processor, supporting preservation of a perceived fidelity of the acoustic output.

Abstract: A method for compressing a HOA signal being an input HOA representation with input time frames (C(k)) of HOA coefficient sequences comprises spatial HOA encoding of the input time frames and subsequent perceptual encoding and source encoding. Each input time frame is decomposed (802) into a frame of predominant sound signals (XPS(k?1)) and a frame of an ambient HOA component ({tilde over (C)}AMB(k?1)). The ambient HOA component ({tilde over (C)}AMB(k?1)) comprises, in a layered mode, first HOA coefficient sequences of the input HOA representation (cn(k?1)) in lower positions and second HOA coefficient sequences (cAMB,n(k?1)) in remaining higher positions. The second HOA coefficient sequences are part of an HOA representation of a residual between the input HOA representation and the HOA representation of the predominant sound signals.

Abstract: A method provides binaural sound to a person through electronic earphones. The binaural sound localizes to a sound localization point (SLP) in empty space that is away from but proximate to the person. When an event occurs, the binaural sound switches or changes to stereo sound, to mono sound, or to altered binaural sound.

Abstract: In order to affect the mood of a vehicle operator (for example, to increase attentiveness), embodiments of the invention automatically sequence appropriate audio cues into the sound playback from a vehicle's sound system. These cues represent events related to the vehicle or taking place in the vicinity of the vehicle, and can be modulated or effected so as to better convey the vehicle event. These cues may also be part of a coherent soundscape representing a fantasy scenario, such as motocross, sailing, or stand-up paddle boarding. Both the soundscape and the mapping of vehicle events to sound cues are configurable by the user.

Abstract: The present disclosure relates to a method and system for generating personalized audio space in vehicle. Information related to user in each region of the vehicle is collected and analyzed to determine direction of first directional speakers associated with corresponding region. An audio space boundary for each region is identified based on the direction of first directional speakers in the corresponding region. Further, the proposed method renders first sound wave of a user selected audio using first directional speakers in the region and transmits a second sound wave corresponding to first sound wave in the region using second directional speakers associated with the corresponding region. The second sound wave restricts rendering of the first sound wave beyond the audio space boundary of the one of the one or more regions to generate the personalized audio space in the vehicle.

Abstract: Audio signals (201) are received. The audio signals include left and right surround channels (206). The audio signals are played back using far-field loudspeakers (101-108, 401-406) distributed around a space (111, 409) having a plurality of listener positions (112, 410). The left and right surround channels are played back by a pair of far-field loudspeakers (103, 106, 403, 405) arranged at opposite sides of the space having the plurality of listener positions. An audio component (208) coinciding with or approximating audio content common to the left and right surround channels is obtained. The audio component is played back using at least a pair of near-field transducers (109, 110, 407, 408) arranged at one of the listener positions. Associated systems (100, 400), methods (800) and computer program products are provided.

Abstract: A noise reducing sound reproduction system comprises a loudspeaker that is connected to a loudspeaker input path and that radiates noise reducing sound. A microphone is connected to a microphone output path and picks up the noise or a residual thereof. An active noise reduction filter is connected between the microphone output path and the loudspeaker input path, and the active noise reduction filter comprises at least one shelving filter.

Abstract: A receiver circuit comprising a first-input-terminal configured to receive an analog-input-signal, which is representative of audio-data; and a second-input-terminal configured to receive a digital-input-signal, which is representative of the same audio-data as the analog-input-signal. The receiver circuit also includes a noise-estimator configured to determine a noise-signal that is representative of a difference between the analog-input-signal and the digital-input-signal; and a de-noiser that is configured to determine a de-noised-signal by applying a de-noising algorithm to the analog-input-signal based on the noise-signal.

Abstract: Various disclosed implementations involve processing and/or playback of a recording of a conference involving a plurality of conference participants. Some implementations involve receiving or determining conversational dynamics data. One or more variables of a cost function may be based, at least in part, on the conversational dynamics data. The cost function may be a spatial optimization cost function of a vector describing a virtual conference participant position for each of the conference participants in a virtual acoustic space. The virtual acoustic space may be determined relative to a listener's head. The virtual conference participant positions may be assigned according to a solution of the cost function.

Abstract: Audio systems and methods for providing intelligible audio content within a vehicle cabin. In one example, the audio system includes a first speaker to provide first audio content to a first seating position based on an audio signal received from an audio signal source, a second speaker to provide second audio content to a second seating position, a first microphone assembly positioned to detect speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise, and audio signal processing circuitry configured to determine a perturbing signal based at least in part on a combination of the first speech content, the leaked second audio content, and the road noise, and adjust the audio signal to the first speaker to compensate for an effect of the perturbing signal on the first audio content at the first seating position.