A mobile computing device that provides location information through directional sound is described herein. The mobile computing device includes a location detection system that provides location signals corresponding to a user location and a destination location, such as a vehicle location or a vertex of a predefined travel route, to a spatial audio generation system to define a spatial audio signal based on a direction from the user location to the destination location. The spatial audio signal is provided to an audio device of the mobile computing device that outputs the spatial audio signal as directional sound having a locus at the destination location.

In at least one embodiment, an audio system is provided. At least one controller is programmed to encode a first and second audio component and to generate a first and a second encoded audio component. The at least one controller is programmed to apply a first gain to at least one of the first encoded audio component and the second encoded audio component to generate at least one of a first and second increased encoded audio component and to decode the at least one of the first and the second increased encoded audio component to generate at least one of a first and second decoded audio component. The at least one controller is further programmed to amplitude pan the at least one of the first and the second decoded audio component to increase a stereo width for an audio output transmitted by a first loudspeaker and a second loudspeaker.

Embodiments are directed to a speaker system that contains an array of multiple dispersion drivers that creates an expansive acoustic pattern to playback multi-channel audio content through a standalone speaker. The speaker system comprises an interface receiving stereo audio; an upmixer generating surround sound formatted audio from the stereo audio including one or more height channels; a virtualizer/downmixer component coupled to the upmixer and generating speaker feeds for two or more loudspeaker output sections, configured to play back the stereo audio, wherein each output section is further configured to play its own dedicated stereo audio signals; and a set of drivers each coupled to a respective output section and configured to project sound in at least two different dispersion patterns.

A speaker device for a vehicle includes a speaker unit, an enclosure mounted to a vehicle body accommodating the speaker unit, and provided with an inner space which is divided into a front space into which a front sound of the speaker unit is radiated and a rear space into which a rear sound of the speaker unit is radiated by a division member, a first path connecting the front space to a first division space provided in the vehicle body, a second path connecting the rear space to a second division space provided in the vehicle body, and a front sound outlet connecting the front space to an indoor space of the vehicle.

The innovation relates to a method and a system for positioning objects, the method comprising detecting, by a central unit, signals from a plurality of receiver/transmitter units at least partly surrounding an area around the central unit; detecting, by the central unit, an absence of at least one signal from at least one of the plurality of receiver/transmitter units at least partly surrounding an area around the central unit; and determining a position of at least one object between the central unit and the at least one of the plurality of receiver/transmitter units based on the detected absence of the at least one signal.

An electronic device includes: an Application Processor (AP) including a CPU; and an audio processing unit configured to: receive an audio stream of M channels from the CPU, convert the M-channel audio stream into an N-channel audio stream, the N-channel being different from the M-channel, output the N-channel audio stream through an output device. The audio processing unit is further configured to: detect a connection with the external electronic device through an audio output interface; determine whether to stop the converting the M-channel audio stream into the N-channel audio stream, based on information received from the CPU; and transmit, via the audio output interface, the M-channel audio stream to the external electronic device in response to the determination of stopping the converting the M-channel audio stream into the N-channel audio stream.

Disclosed is an audio signal processing method. The audio signal processing method according to the present invention comprises the steps of: receiving a bit-stream including at least one of a channel signal and an object signal; receiving a user's environment information; decoding at least one of the channel signal and the object signal on the basis of the received bit-stream; generating the user's reproducing channel information on the basis of the user's received environment information; and generating a reproducing signal through a flexible renderer on the basis of at least one of the channel signal and the object signal and the user's reproducing channel information.

Broadly speaking, the technology relates to using wave field synthesis theory to simulate one or more idealized virtual point sources in a multi-speaker system. The speaker transfer function of each speaker is modeled, and the values and directional gradient of the combined speaker transfer function at test points in a convexly-bounded listening region are compared to the desired values and directional gradient for the idealized transfer function of the idealized virtual point source(s) at the test points to determine filter coefficient sets for each filter. The determined filter coefficients are those which minimize the total difference between the values and directional gradient of the combined speaker transfer function and the values and directional gradient of the idealized transfer function of the idealized virtual point source across all the test points for a plurality of frequency bins.

Example techniques involve outputting multiple audio channels using a multiple driver playback device. An example playback device receives a first and second channel of audio content. The playback device plays back play back the first channel via a first group of audio transducers such that the first group of audio transducers form, via superposition, a first response lobe having a maximum in a first direction. Further, the playback device plays back the second channel via a second group of audio transducers such that the second group of audio transducers form, via superposition, a second response lobe having a maximum in a second direction that is separated by an angle of at least 45° from the first direction.

The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.