Abstract: An apparatus includes a receiver configured to receive at least one encoded signal that includes inter-channel bandwidth extension (BWE) parameters. The device includes a decoder configured to generate a mid-channel time-domain high-band signal by performing bandwidth extension based on the at least one encoded signal. The decoder is configured to generate, based on the mid-channel time-domain high-band signal and the inter-channel BWE parameters, a first channel time-domain high-band signal and a second channel time-domain high-band signal. The first channel time-domain high-band signal is selectively based on an adjustment spectral shape parameter responsive to whether the inter-channel BWE parameters include an adjustment spectral shape parameter. The decoder is configured to generate a target channel signal based at least in part on the first channel time-domain high-band signal, and to generate a reference channel signal based at least in part on the second channel time-domain high-band signal.

Abstract: A schematic block diagram of a decoder for decoding an encoded audio signal is shown. The decoder includes an adaptive spectrum-time converter and an overlap-add-processor. The adaptive spectrum-time converter converts successive blocks of spectral values into successive blocks of time values, e.g. via a frequency-to-time transform. Furthermore, the adaptive spectrum-time converter receives a control information and switches, in response to the control information, between transform kernels of a first group of transform kernels including one or more transform kernels having different symmetries at sides of a kernel, and a second group of transform kernels including one or more transform kernels having the same symmetries at sides of a transform kernel. Moreover, the overlap-add-processor overlaps and adds the successive blocks of time values to obtain decoded audio values, which may be a decoded audio signal.

Abstract: Embodiments are described for a soundfield system that receives a transmitting soundfield, wherein the transmitting soundfield includes a sound source at a location in the transmitting soundfield. The system determines a rotation angle for rotating the transmitting soundfield based on a desired location for the sound source. The transmitting soundfield is rotated by the determined angle and the system obtains a listener's soundfield based on the rotated transmitting soundfield. The listener's soundfield is transmitted for rendering to a listener.

Abstract: A system includes a microphone mounted inside a vehicle, a speaker mounted outside the vehicle, a camera with a field of view encompassing a seat of the vehicle, and a computer in communication with the microphone, speaker, and camera. The computer is programmed to, in response to data from the camera indicating a gesture by an occupant of the seat, activate the speaker to broadcast based on data transmitted by the microphone.

Abstract: A method for laminating or coupling a first and second precision fabric layers each being formed by weaving a plurality of synthetic monofilaments to achieve a two-layer textile structure, for application to loudspeakers and microphones of electronic devices in general providing at least an audio function, either a sound emitting (voice or music) or receiving function, both for protecting said electronic device from water and solid particle intrusion and for preserving the designed sound emitting and receiving characteristics, the method comprising coupling the first and second layers by a glueing material sprayed on the synthetic monofilaments of at least one of the first and second precision fabric layers.

Abstract: In one aspect, a system of active noise cancellation includes a signal processing apparatus in operative communication with at least one input device and at least one output device disposed within or proximate to a cabin of a work vehicle. Generally, the signal processing apparatus can be configured to perform a method of active noise cancellation. The method can include receiving an audio input signal from the at least one input device, the audio input signal comprising audio perceptible from within the cabin. The method can also include processing the audio input signal to separate ambient noise in the audio input signal from equipment noise in the audio input signal and generating an output waveform based on the ambient noise, and outputting the output waveform through the at least one audio output device. The output waveform can be configured to at least partially cancel out the ambient noise.

Abstract: The techniques disclosed herein provide application programming interfaces (APIs) for enabling a system to select a spatialization technology. The APIs also enable a system to balance resources by allocating audio objects to a number of applications executing on a computer system. The system coordinates the audio objects between applications and each application can control the number of objects they individually generate. In some configurations, the system can also fold audio objects across different applications. Different spatialization technologies can be selected based on an analysis of contextual data and policy data. For instance, when a new headphone system is plugged in, the system may switch from Dolby Atmos to the Microsoft HoloLens HRTF spatialization technology. The system can dynamically control a number of generated audio objects and dynamically change a utilized spatialization technology based on changes to a computing environment.

Abstract: Discussed are a film speaker and a display device. The film speaker includes an electroactive layer including a first surface and a second surface opposite to the first surface, and further including a plurality of concave portions; and a first electrode and a second electrode disposed on at least one of the first surface and the second surface. Therefore, the sound generated in the film speaker may be further amplified and the sound pressure level may be improved.

Abstract: [Object] To allow a listener to listen to ambient sounds of the external environment in an appropriate manner while wearing a head mounted acoustic device.

Abstract: A method is provided for directing a user to a point of interest using sounds played on a wearable audio output device. A user's direction of gaze is determined using data from at least one sensor in the audio output device. First and second locations are determined of the user and the point of interest respectively, and a distance is determined between the first and second locations. A relative angle between the direction of gaze and the direction of the point of interest is determined based on the determined first and second locations. A sample sound is altered using at least one sonification technique to convey information relating to the determined distance and the relative angle. The altered sample sound is rendered and output for playing by the audio output device.

Abstract: A rendering system including a plurality of loudspeakers, at least one microphone and a signal processing unit. The signal processing unit is configured to determine at least some components of a loudspeaker-enclosure-microphone transfer function matrix estimate describing acoustic paths between the plurality of loudspeakers and the at least one microphone using a rendering filters transfer function matrix using which a number of virtual sources is reproduced with the plurality of loudspeakers.

Abstract: A method provides binaural sound to a user. An intelligent personal assistant selects a location for the user where the user hears binaural sound that emanates from a sound localization point (SLP) in empty space away from a head of the user. A wearable electronic device (WED) receives a voice command from the user to move the SLP to another location.

Abstract: An audio signal processing device for processing an audio signal may include a receiving unit configured to receive an audio file including the audio signal, a processor configured to simultaneously render a first audio signal component included in a first track of the audio file and a second audio signal component included in a second track of the audio file, and an output unit configured to output the rendered first audio signal component and the rendered second audio signal component.

Abstract: A plurality of reproduction sections are set. With regard to the reproduction section provided with the first reproduction device group that includes at least one reproduction device connected via a network with a storage that stores audio data, the audio data is transmitted via the network to each reproduction device. With regard to the reproduction section provided with the second reproduction device group includes a plurality of reproduction devices that are connected to each other using at least one audio cable and that include at least one reproduction device connected via the network with the storage, the audio data is transmitted via the network to at least one reproduction device connected via the network with the storage, and the at least one reproduction device is caused to transmit the received audio data via the at least one audio cable to at least one other reproduction device.

Abstract: A speaker includes a speaker enclosure. The speaker enclosure includes an inner region arranged in a center of the speaker enclosure and an outer region, which surrounds the inner region and includes a plurality of channels connecting the inner region to an environment in which the speaker enclosure is arranged. The speaker also includes a sound transducer arranged in the inner region in the center of the speaker enclosure. Sound produced by the sound transducer radiates through the plurality of channels into the environment. A length of each of the plurality of channels is greater than a length from the center of the speaker enclosure to the environment.

Abstract: A method for identifying at least one characteristic of a sound-producing object includes storing, in a memory, audio data acquired from an auditory environment via at least one microphone; receiving an input indicating a user request to identify a characteristic of a sound-producing object included in the auditory environment; determining, via a processor and based on a portion of the audio data acquired from the auditory environment prior to the user request, the characteristic of the sound-producing object; and causing information corresponding to the characteristic of the sound-producing object to be output via at least one output device.

Abstract: A digital signal processor (DSP) in headphones processes sound with head-related transfer functions (HRTFs) to produce binaural sound that externally localizes away from a head of a user wearing the headphones. The headphones include a microphone that receives a voice command that causes the headphones to move a location of the binaural sound.

Abstract: A wearable electronic device (WED) worn on a head of a user displays first and second virtual images. A digital signal processor (DSP) processes sound to a first sound localization point (SLP) at the first virtual image and to a second SLP at the second virtual image. A command controls the first and second SLPs when a head orientation of the user is directed to the SLP.

Abstract: A digital signal processor (DSP) in headphones processes sound with head-related transfer functions (HRTFs) to produce binaural sound that externally localizes away from a head of a user wearing the headphones. The headphones include a microphone that receives a voice command to an intelligent personal assistant that causes the headphones to change a location of the binaural sound.

Abstract: A method provides a voice in binaural sound to a first user during an electronic communication between the first user wearing a head mounted display (HMD) and a second user. The method includes designating a sound localization point (SLP) with a handheld portable electronic device (HPED), processing the voice of the second user with a digital signal processor (DSP) in the HMD, and moving the voice of the second user in response to a microphone in the HMD receiving a voice command from the first user.