A method for channel identification of a multi-channel audio signal comprising X>1 channels is provided. The method comprises the steps of: identifying, among the X channels, any empty channels, thus resulting in a subset of Y≤X non-empty channels; determining whether a low frequency effect (LFE) channel is present among the Y channels, and upon determining that an LFE channel is present, identifying the determined channel among the Y channels as the LFE channel; dividing the remaining channels among the Y channels not being identified as the LFE channel into any number of pairs of channels by matching symmetrical channels; and identifying any remaining unpaired channel among the Y channels not being identified as the LFE channel or divided into pairs as a center channel.

An audio arrangement with a plurality of audio devices and a central device. A unique address is assigned to each audio device of a basic set in a data environment so that the central device can selectively send messages to the audio devices of the basic set. The central device includes a data-technology selection area for a selected set of audio devices from the basic set, and a communication module for activating a notification mode of the audio devices of the selected set. Each of the audio devices includes a human-machine interface and are configured to send a notification message to the central device in the notification mode when the human-machine interface is actuated. The central device lists the audio devices of the selected set in a list area in the order in which the notification message is received at the central device.

An audio device uses a multi-way speaker device, an ideal state being when the virtual sound source points of each unit group overlap and the spherical surface of the wavefront of the sound output from each speaker unit group overlaps one spherical surface. In order for the virtual sound source points of each unit group to be close to each other so that the wavefront of the sound output from each unit group is approximated to one spherical surface. A positioning a placement position of the speaker unit group having relatively small diameters rearward from a viewing position with respect to a placement position of the speaker unit group having relatively large diameters, and/or making the number of speaker units constituting the speaker unit group having relatively small diameters larger than the number of speaker units constituting the speaker unit group having relatively large diameters is adopted.

A method includes: receiving multi-channel sound source signals from a microphone array; synchronizing the multi-channel sound source signals based on spatial information of the microphone array; and detecting an abnormal channel of the microphone array by inputting the synchronized sound source signals and first conditional information to a neural network model configured to perform an inverse operation.

The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing a multimedia signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing filtering for multimedia signal having a plurality of subbands with a low calculation amount. To this end, provided are a method for processing a multimedia signal including: receiving a multimedia signal having a plurality of subbands; receiving at least one proto-type filter coefficients for filtering each subband signal of the multimedia signal; converting the proto-type filter coefficients into a plurality of subband filter coefficients; truncating each subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and filtering the multimedia signal by using the truncated subband filter coefficients corresponding to each subband signal and an apparatus for processing a multimedia signal using the same.

A vehicle sound generation device includes a controller that generates a sound signal representing a sound and sets the localization of the sound, and left and right front speakers and left and right rear speakers that output sounds corresponding to the sound signals for which localization has been set by the controller, in which the controller sets the localization of the sounds based on the change amounts (such as the pitch rate, the torque change amount, the roll rate, and steering angular speed) per unit time of the physical quantities correlated with a driving operation by the driver of the vehicle so that the sound image of at least part (low frequency component) of frequency components of the sound is located toward the wheel where the ground load is increasing according to the driving operation.

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.

A remote assistance system comprises a remote facility configured to assist an operation of a vehicle. A processor of the vehicle executes data processing of surrounding environment data of the vehicle, and transmission processing to transmit data for communication indicating the processed data by the data processing to the remote facility. The surrounding environment data includes sound data of the surrounding environment of the vehicle. In the data processing of the surrounding environment data, a type of a sound source included in sound data is estimated by an acoustic analysis of the said sound data. Subsequently, identification data corresponding to the estimated type is specified by referring to a database of the vehicle using the estimated type, and this is added to the data for communication.

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.

Methods, apparatus and articles of manufacture to identify sources of network streaming services are disclosed. An example apparatus includes a coding format identifier to identify, from a received first audio signal representing a decompressed second audio signal, an audio compression configuration used to compress a third audio signal to form the second audio signal, and a source identifier to identify a source of the second audio signal based on the identified audio compression configuration.