A system for and a method of controlling generation of a 3D audio stream are disclosed. The method comprises accessing an audio stream; determining a value of a feature associated with the audio stream; selecting one or more 3D control parameters from a set of 3D control parameters, the selecting being based on the value of the feature associated with the audio stream; and generating the 3D audio stream based on the selected one or more 3D control parameters. In some embodiments, the feature is a metric associated with a frequency distribution of correlations of the audio stream.

A method for processing an audio signal and an electronic device, relate to the field of audio and video technology. The method includes: detecting beat information of the audio signal; and obtaining virtual surround sound for the audio signal by performing a convolution operation on a head-related transfer function and the audio signal based on the beat information of the audio signal.

Processes, methods, systems, and devices are disclosed for synchronizing multiple wireless data streams captured in action by various sensors, with lost data recovery. For example, a source device may have multiple sensors acquiring data and sending the data streams (e.g., via Bluetooth connections) to a target device. Timing information may be appended for each of the data streams. Data packets of the multiple data streams may be formed with the timing information. The data packets may be transmitted to a target device that is configured to synchronize the multiple data streams using the timing information. The target device, applying the example processes or techniques of this disclosure, may accurately synchronize the multiple data streams. In some cases, the target device may capture additional data streams and the processor synchronizes all data streams of both the source and the target devices.

An apparatus for generating an enhanced sound field description includes: a sound field generator for generating at least one sound field description indicating a sound field with respect to at least one reference location; and a meta data generator for generating meta data relating to spatial information of the sound field, wherein the at least one sound field description and the meta data constitute the enhanced sound field description. The meta data can be a depth map associating a distance information to a direction in a full band or a subband, i.e., a time frequency bin.

An apparatus, the apparatus comprising means configured to: receive audio content comprising voice audio and ambient audio and directional information indicative of a direction of the at least one sound source and the direction of the remote user relative to the reference point; receive a reference location; provide for presentation of the ambient audio with a first spatial audio effect, based on the directional information, and presentation of the voice audio with a second spatial audio effect, based on the directional information, receive repositioning signalling from the remote user device; and provide for presentation of the audio content using a modification of the first spatial audio effect to reposition an ambient-perceived direction based on the repositioning signalling and/or a modification of the second spatial audio effect to reposition a voice-perceived direction based on the repositioning signalling to increase the spatial separation between the voice-perceived direction and the ambient-perceived direction.

A multi-channel decoder for generating a binaural signal from a downmix signal using upmix rule information on an energy-error introducing upmix rule for calculating a gain factor based on the upmix rule information and characteristics of head related transfer function based filters corresponding to upmix channels. The one or more gain factors are used by a filter processor for filtering the downmix signal so that an energy corrected binaural signal having a left binaural channel and a right binaural channel is obtained.

Personalized vertigo rehabilitation and treatment can include generating a sequence of sounds that are modulated to perceptually emanate from one or more distinct locations in three-dimensional space relative to a user. The sequence can be predetermined to guide head movements of the user in a prescribed manner to mitigate vertigo experienced by the user. The user's head movements can be tracked as the user responds to the sequence of sounds. A signal can be conveyed to the user in response to detecting a predetermined head movement by the user.

Disclosed is a massage device according to one embodiment of the present disclosure. The massage device comprises: a body structure for forming an area to accommodate at least one portion of the body of a user and defining the outer shape of the massage device; a massage module for supplying a massage function to the at least one portion of the body of the user accommodated in the area in the body structure; an input unit for receiving an input of an arbitrary form from the user of the massage device; a display for displaying massage mode screen information which can be selected by the user of the massage device; and a control unit for controlling one more operations of the massage device on the basis of at least a part of the input of an arbitrary form received by the input unit. The massage mode screen information may include: an automatic mode graphic object linked to a function of performing an automatic mode consisting of a predetermined massage pattern and massage time; a manual mode graphic object linked to a function of performing a manual mode to allow a user of the massage device to configure a massage pattern and massage time; and a massage option mode graphic object linked to a function enabling selection of a massage option mode consisting of an additional function that provides convenience to a user of the massage device in addition to a massage operation that applies pressure to at least a part of the body of the user of the massage device.

A method of presenting an audio signal to a user of a mixed reality environment is disclosed, the method comprising the steps of detecting a first audio signal in the mixed reality environment, where the first audio signal is a real audio signal; identifying a virtual object intersected by the first audio signal in the mixed reality environment; identifying a listener coordinate associated with the user; determining, using the virtual object and the listener coordinate, a transfer function; applying the transfer function to the first audio signal to produce a second audio signal; and presenting, to the user, the second audio signal.

Systems and methods for rendering audio signals are disclosed. In some embodiments, a method may receive an input signal including a first portion and the second portion. A first processing stage comprising a first filter is applied to the first portion to generate a first filtered signal. A second processing stage comprising a second filter is applied to the first portion to generate a second filtered signal. A third processing stage comprising a third filter is applied to the second portion to generate a third filtered signal. A fourth processing stage comprising a fourth filter is applied to the second portion to generate a fourth filtered signal. A first output signal is determined based on a sum of the first filtered signal and the third filtered signal. A second output signal is determined based on a sum of the second filtered signal and the fourth filtered signal. The first output signal is presented to a first ear of a user of a virtual environment, and the second output signal is presented to the second ear of the user. The first portion of the input signal corresponds to a first location in the virtual environment, and the second portion of the input signal corresponds to a second location in the virtual environment.