An audio system is provided that includes a first loudspeaker and a second loudspeaker. The first loudspeaker transmits an audio signal including audio data and a signature tone into a listening environment. The second loudspeaker includes at least one controller programmed to receive the audio signal including the audio data and the signature tone and to determine a direction of arrival (DOA) of the audio signal as received at the second loudspeaker based at least on the signature tone. The at least one controller is further programmed to perform a time frequency masking operation on the received audio signal prior to determining the DOA of the audio signal.

Various implementations include portable speakers and methods configured to adjust audio input signals. In one example, a portable speaker includes: at least one electro-acoustic transducer for providing an acoustic output; an audio input for receiving one or more audio input signals; an audio output for providing one or more audio output signals; a communication module for providing a network communication link; and a processor configured to receive the audio input signals and to process the audio input signals to provide the audio output signals, wherein the processor is configured, from a common set of audio input signals, to provide, a first set of audio output signals to the electro-acoustic transducer, such that the first set of audio output signals act as a monitor of the one or more audio input signals, and a second set of audio output signals via the network communication link.

A multi-channel audio playback system includes a front speaker, a wearable speaker, and a signal processor. The front speaker is configured to receive front sound field signals (FS). The wearable speaker is designed to allow a listener to hear environmental sounds and is configured to receive rear sound field signals (RS). The signal processor is configured to divide a multi-channel signal into a front sound field signal group (FSG) and a rear sound field signal group (RSG); mix FSG (RSG) and generate the FS (RS), wherein the number of the FS (RS) is equal to the number of the drivers of the front speaker (wearable speaker); and perform time delay adjustment on FS or RS, so that a difference between times for sound waves emitted by the front speaker and by the wearable speaker to respectively reach ears of the listener is less than a default value.

A headrest apparatus, a method, and a computer program product is provided for providing surround sound experience to user. The headrest apparatus receives an audio portion of a media content from an electronic device. The headrest apparatus determines a plurality of audio channel signals from the received audio portion. The determined plurality of audio channel signals includes at least a first set of audio channel signals. The headrest apparatus further controls a first audio rendering device, embedded at a first position in the headrest apparatus, to output a first audio channel signal of the first set of audio channel signals. The headrest apparatus further controls a second audio rendering device, embedded at a first position in the headrest apparatus, to output a second audio channel signal of the first set of audio channel signals.

An audio apparatus includes a receiver configured to receive audio data and audio transducer position data for a plurality of audio transducers; and a renderer configured to render the audio data by generating audio transducer drive signals for the audio transducers from the audio data. Further, a clusterer is configured to cluster the audio transducers into a set of clusters in response to the audio transducer position data and to distances between audio transducers in accordance with a distance metric. A render controller is configured to adapt the rendering in response to the clustering. The apparatus is configured to select array processing techniques for specific subsets that contain audio transducers that are sufficiently close and allow automatic adaptation to audio transducer configurations thereby, e.g., allowing a user increased flexibility in positioning loudspeakers.

A method of processing an audio signal is provided. The method includes acquiring location information and performance information of a speaker configured to output an audio signal, selecting a frequency band based on the location information, determining a section to be strengthened from the selected frequency band with respect to the audio signal based on the performance information, and applying a gain value to the determined section.

A loudspeaker system for a vehicle includes a loudspeaker array including a plurality of electroacoustic sound transducers that can be controlled individually, such that a user-specific audio signal can be reproduced for different users at different listening positions in a vehicle interior of the vehicle via the plurality of electroacoustic sound transducers. Here, the loudspeaker array or a sound outlet of the loudspeaker array is arranged in particular between at least two of the listening positions in the vehicle interior, i.e. for example between the driver and the passenger seat.

Technologies for location-dependent wireless speaker configuration include a mobile computing device wirelessly coupled to a plurality of speakers. The mobile computing device is configured to determine a location of and assign a location indicator to each of the speakers based on the determined locations. The location indicator identifies a location of each speaker relative to the other speakers such that the mobile computing device can generate an audio stream for each of the speakers based on the assigned location indicator and transmit each of the generated audio streams to a corresponding one of the speakers. Other embodiments are described and claimed herein.

In a system that includes one or more audio output components, positioning information associated with positioning of a user within a three-dimensional space around the user maybe determined. The one or more audio output components may be controlled based on the determined positioning information, with the controlling including providing a three-dimensional audio environment according to the user. The controlling may include configuring least one audio output related parameter or function for optimizing, based on the determined positioning information, directionality of at least one of the one or more audio output components. The determined positioning information may be generated or adjusted based on sensory data relating to the user.

A headphone that has a support structure that is adapted to sit on a head or upper torso of a user, a first acoustic driver carried by the support structure such that the first acoustic driver is located off of an ear of the user, wherein the first acoustic driver has front and rear sides and sound is radiated from both sides of the first acoustic driver, and a structure that defines a first acoustic chamber on the front side of the first acoustic driver and with at least one opening therein, and a second acoustic chamber on the rear side of the first acoustic driver and with at least one opening therein. At low frequencies a polar pattern of the first acoustic driver behaves approximately like a dipole, and at high frequencies a polar pattern of the first acoustic driver exhibits a higher order directional pattern. A second acoustic driver can be included.