An apparatus and method for transmitting multiple on-demand audio streams locally to web-enabled user devices. Primarily usable for local audio acquisition and instant redistribution in conference halls with translation booths and stadiums with commentators, the technology is scalable and can be tailored to suit any local acquisition and distribution of both digital and analog audio signals. The technology is reliant on the local network configuration and wireless coverage.

An audio file format of an audio portion of a natural language content is determined. Using a trained audio language identification model, a human language included in the audio portion is identified. Using a trained audio to text model trained on the human language, the audio portion is converted to a corresponding set of text data. The set of text data is indexed. Using the indexed set of text data responsive to a search query, a search result is generated, the search query specifying a search including a non-textual portion of the natural language content.

A multimedia system and a protocol converter are provided. The multimedia system includes a sink device, e.g., a television, various audiovisual devices connected to the sink device, and the protocol converter. The protocol converter is connected to the sink device, and processes the audio and video signals inputted from a specific audiovisual source and outputted to the sink device to be played. The audio signals can be processed and played by an audio playback device directly connected with the protocol converter. Furthermore, the protocol converter can process the audio signals being returned from the sink device of the multimedia system via an audio return channel or an enhanced audio return channel. Finally, the received audio signals are converted and outputted to one of various audio output interfaces supported by the protocol converter.

Methods, systems, and non-transitory, machine-readable media are disclosed for audio adaption of content items to device operations of an endpoint media device. First observation data corresponding to media device operations associated with a first media device and mapped to first content items may be processed. A first content composite including an adaptable content item may be received. The first content composite may be adapted with a first audio segment. Based on the first observation data, the first audio segment may be selected. The first content composite may be configured with the first audio segment so that the adapted first content composite plays the first audio segment when the adapted first content composite is presented. The adapted first content composite may be output for presentation, where the first endpoint media device or the second endpoint media device performs at least one operation relating to the adapted first content composite.

A method for determining location of a premises is disclosed. The method includes measuring a signal strength of a plurality of communication signals received at the premises, obtaining data associated with a source of the signals, estimating a propagation loss for the received signal, determining a distance between a source of each of the signals and the premises based on the estimated propagation loss, and triangulating the location of the premises.

According to one aspect there is provided an audio system 10 comprising a transmission unit 100 and a plurality of speaker units 110-1, 110-2, 10-N, wherein the transmission unit 100 comprises a controller 101 and a wireless communication interface 103 arranged for communication according to an IEEE 802.11 standard (WiFi™), wherein the controller 101 is configured to: receive an audio data package to be played back; and to transmit the audio data package to be played back over the wireless communication interface 103 utilizing the same protocol for the transmission of the audio data package and for synchronizing the playback of the audio data, and wherein each of plurality of the speaker units 110-1, 110-2, 10-N comprises a controller 111, a PCM 111-1, a speaker element 114 and a wireless communication interface 113 arranged for communication according to an IEEE 802.11 standard (WiFi™), wherein the controller 111 is configured to: receive the at least one data package to be played back through the wireless communication interface 113 and to cause audio represented by the received audio data package to be played back through the speaker element 114 by feeding the audio data to the PCM 111-1 being connected to the speaker element 114.

A remote control with a microphone subsystem comprising a pair of internal microphones is shown and described. When connected to a remote-control base station that is itself connected to an external power source, the microphone subsystem is continuously energized by the external power source, and the pair of internal microphones operate as far field microphones that receive oral commands uttered by a user from a distance. When the remote control is removed from the base, the microphone subsystem is configured for selective connection to an internal power source by actuating a user control on the remote control. In the external power source mode, signals from both microphones are digitally processed to provide a far-field microphone array with beam forming. In the direct current mode, only one microphone's signals are digitally processed as a simple monaural signal (or they are not digitally processed). The remote control also includes a video camera capable of capturing video image data of the user and transmitting it to an associated television for facial recognition of the user.

An example apparatus includes at least one processor circuitry to execute or instantiate instructions to identify a media file is scheduled to be accessed by a media device within a first time period after a publishing of the media file was published by a media provider; select a first symbol to be inserted at a first symbol position and a second symbol to be inserted at a second symbol position to identify an access of the media file is to be accessed by the media device within the first time period, the first symbol position in a first bit sequence, the second symbol position in a second bit sequence; encode the first bit sequence in the media file on a first encoding layer of a multilayered watermark, and encode the second bit sequence in the media file on a second encoding layer of the multilayered watermark.

A playback device including a processor that executes program instructions such that the playback device is configured to receive first audio data representing audio content, generate and output second audio data based on the first audio data, and at least in part while generating and outputting the second audio data, generate and output a control signal associated with the second audio data to vary a supply voltage for an audio amplifier. The playback device also includes a switch-mode power supply (SMPS) that varies the supply voltage for the audio amplifier based on the control signal. The playback device also includes an amplifier circuitry comprising the audio amplifier powered by the supply voltage from the SMPS. The amplifier circuitry is configured to receive the second audio data and generate an analog audio signal to drive a speaker based on the second audio data.

A method is provided for synchronizing a source device with a sink device. The source device transmits a stream of packets to the sink device. The source device receives feedback from the sink device indicating packet arrival times of the packets at the sink device. Based on the feedback, in some aspects, the source device determines an average time shift in the packet arrival times at the sink device, wherein the average time shift is relative to expected packet arrival times of the packets at the sink device. In some such aspects, the source device detects that the average time shift exceeds a threshold, and in response to the detecting, adjusts a streaming time of the stream of packets to synchronize, within a predefined tolerance, the source device with the sink device.