Abstract: A method of and a system for generating an acoustic wave representing reverberations from a desired acoustic environment are described including having a recording surface (11) defined by a spatial distribution of recording transducers (o) and an emitting surface defined by a spatial distribution of emitting transducers (x), wherein the emitting surface (12) defines a volume within which the recording surface (11) is located, recording an acoustic wave (14) originating from within a volume defined by the recording surface (11) using the recording transducers (x), extrapolating the recorded wave (14) to the emitting surface using wavefield propagator system (IS) representing the desired acoustic environment, and emitting the extrapolated wave from the emitting transducers (o).

Abstract: An audio system comprises at least one processor configured to receive multi-channel audio data and comprising a plurality of output channels. Control instructions are established based on preset positions of a plurality of speakers connectable to the output channels and further based on virtual positions of the channels of the multi-channel audio data. The channels of the multi-channel audio data are routed to the output channels based on the control instructions.

Abstract: An automated method begins by receiving a list of numbers that have been de-activated by a carrier. Periodically, and for each number, a request is made to identify a current carrier for the number. If the current carrier matches the carrier that provided the de-activation information, the mobile number is considered to be in a first state, i.e., shut off and returned to a pool of numbers that are available to this same carrier. Upon a determination that the number is in the first state, the provider issues a request to any opt-in database to delete any express consent or other similar data associated with the number. If, however, the number does not match the carrier of deactivation, the number is considered to be in a second state, i.e., likely to have been ported by the same user to a new carrier. This state is logged in an audit trail.

Abstract: A user interface device includes: a display unit that displays a user interface screen associated with a first coordinate axis, the first coordinate axis corresponding to a first attribute of a sound field and being allocated with a plurality of parameters related to the first attribute; a first specification unit that specifies a coordinate value of the first coordinate axis corresponding to a position in the user interface screen specified by a user; and a second specification unit that specifies a value of each of the plurality of parameters, based on the specified coordinate value.

Abstract: In accordance with embodiments of the present disclosure, a method may include determining capability of each particular information handling system of a plurality of information handling systems to support combination of functionality of audio components of the particular information handling system. The method may also include determining audio performance parameters of the audio components of the information handling systems of the plurality of information handling systems which are capable of supporting combination of functionality of audio components. The method may further include, based on the audio performance parameters, combining functionality of audio components of the plurality of information handling systems which are capable of supporting combination of functionality of audio components.

Abstract: A method and apparatus are provided for presenting content to a caller and/or a called party in association with a telephone call. Content may be presented pre-ring (before the called party's telephone rings), in-call, and/or post-call. Content presented to a party may be related to another party participating in the call or may be related to a third party. Presented content may be actuable, and allow a caller to change the destination of a call, take advantage of an offer presented to him, redeem a coupon, schedule or queue a subsequent call, etc. To find a desired destination party, a caller may initiate a manual or automatic search of his local contacts (on his telephone) and/or a central or global directory or contact list. A party to a call may be offered one or more payment mechanisms for completing a purchase in an on-line or real-world transaction.

Abstract: Voice-controlled devices that include one or more speakers for outputting audio. In some instances, the device includes at least one speaker within a cylindrical housing, with the speaker aimed or pointed away from a microphone coupled to the housing. For instance, if the microphone resides at or near the top of the cylindrical housing, then the speaker may point downwards along the longitudinal axis of the housing and away from the microphone. By pointing the speaker away from the microphone, the microphone will receive less sound from the speaker than if the speaker were pointed toward the microphone). Because the voice-controlled device may perform speech recognition on audio signals generated by the microphone, less sound from the speaker represented in the audio signal may result in more accurate speech recognition, and/or a lesser need to perform acoustic echo cancelation (AEC) on the generated audio signals.

Abstract: This disclosure describes a conferencing apparatus with an automatically adapting beamforming microphone array for teleconferencing applications. The conferencing apparatus includes a processor coupled to memory, storage, and a housing. The apparatus further includes a communication element, a plurality of microphones arranged in the housing and configured as a beamforming microphone array, and an orientation sensor. Additionally, the apparatus includes executing a series of steps including: (a) adapting a signal-processing characteristic of the beamforming microphone array responsive to the orientation signal, (b) beamforming to combine the plurality of microphone signals to a plurality of combined signals, (c) performing an acoustic echo cancellation operation on the plurality of combined signals to generate a plurality of combined echo-canceled signals, and (d) selecting one or more of the plurality of combined echo-canceled signals for transmission.

Abstract: Wireless-enabled loudspeaker includes a wooden capacitive touch user interface. The loudspeaker may comprise at least one electroacoustic transducer, a processor in communication with the at least one electroacoustic transducer, and a wooden exterior surface comprising a capacitive touch user interface that allows a user to control operation of the loudspeaker. The wooden exterior surface acts a dielectric for the capacitive touch user interface. The loudspeaker may comprise a wireless transceiver circuit for receiving and transmitting wireless communication signals via a wireless network. The wireless transceiver circuit may receive wirelessly audio content from streaming audio content servers that are connected to the Internet. The capacitive touch user interface comprises a plurality of user control icons etched in the wooden exterior surface, and a plurality of capacitive sense electrodes located under the wooden exterior surface.

Abstract: A multiphase pulse width modulator (PWM) producing N mutually phase shifted PWM signals, which is well-suited for class D audio amplifier applications. The multiphase PWM includes (a) N+1 (N ?2) analog triangular waveform generators producing N+1 mutually phase shifted triangular waveforms, and (b) N+1 comparators each having a first input coupled to each of the N+1 triangular waveforms and a second input coupled to an audio signal to generate N+1 mutually phase shifted PWM phase signals. A crosspoint switch includes N+1 inputs coupled to the N+1 PWM phase signals, and N outputs to supply the N PWM signals. A crosspoint switch controller selectively connects each of the N+1 inputs to each of the N outputs for a duration of a cycle time in a time sequence to simultaneously generate the N PWM signals such that each signal has interleaved time segments of the N+1 PWM phase signals.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing access to a visual phone menu is disclosed. One of the methods includes receiving a call request transmitted from a calling device to initiate a call to a recipient; saving state information associated with the caller's navigation through a voice response system; providing an option for the caller to select between receiving a visual phone menu (VPM) or continuing to listen to the voice response system menu; receiving a selection of the option to receive the VPM; providing the VPM to a client device including providing state information associated with the caller's navigation through the voice response system prior to the selection; and using the state information when the caller navigates back in the response tree using the VPM.

Abstract: A portable audio networking system is provided that includes master devices and slave devices in communication over cables adapted to simultaneously transport a digital audio signal, DC power, and a data signal. Master devices are configured to receive a digital audio signal, distribute power, and transceive a data signal, and slave devices are configured to transmit the digital audio signal to master devices, receive the power from master devices, and transceive the data signal with master devices. Slave devices can include wireless audio receivers that receive an RF signal containing an audio signal from wireless audio transmitters. Master devices can include gateway interconnection devices that act as hubs and routers for the system. The reduction in the number of cables compared to traditional systems results in less weight for crew members to carry and easier setup of the system. Remote control of wireless audio transmitters is also enabled.

Abstract: A voltage regulator includes a switch coupled between an input voltage terminal and an energy storage element, a first output capacitor coupled to a first node defined between the switch and the energy storage element, the first capacitor being coupled to a first output voltage terminal, a charge pump circuit coupled to the first node and comprising a second output capacitor coupled between a second output voltage terminal and the first output voltage terminal, and a controller operable to selectively enable the switch to control voltages generated at the first and second output terminals.

Abstract: A noise reducing sound reproduction system and method is disclosed, in which an input signal is supplied to a loudspeaker by which it is acoustically radiated. The signal radiated by the loudspeaker is received by a microphone that is acoustically coupled to the loudspeaker via a secondary path and that provides a microphone output signal. The microphone output signal may be subtracted from a useful-signal to generate a filter input signal. The filter input signal may be filtered in an active noise reduction filter to generate an error signal. The useful-signal may be subtracted from the error signal to generate the loudspeaker input signal, and the useful-signal may be filtered by one or more low-pass filters prior to subtraction from the microphone output signal.

Abstract: Various systems and methods for providing contextual information to a user while the user is wearing headphones are described herein. A system for providing contextual information while wearing headphones comprises an event detector module to detect an event external and proximate to a user device, the user device communicatively coupled to headphones worn by a user, the headphones producing sound at a first volume; a notification decision module to determine whether to notify the user of the event; and a notification module to notify the user of the event based on the determination.

Abstract: In a digital mixer, when a patch of a certain channel is changed, values of parameters of one port which has been connected to the certain channel is applied as parameters of a newly connected port, thereby enabling to hand over parameters of the one port which have been set for the certain channel. Further, when a newly connected port is already connected to another channel, the digital mixer asks the user whether or not to apply the parameters of the one port.

Abstract: A microphone comprises a sound inlet, a first MEMS microphone structure comprising a first membrane and associated backplate in the path of the sound inlet and a second MEMS microphone structure comprising a second membrane and associated backplate stacked with respect to the first microphone membrane, with an enclosed space between the first and second membranes.

Abstract: Various methods and systems for estimating a room impulse response between an audio source and an array of microphones are described. In one example, a method includes receiving audio signals at a microphone of an array of microphones. The audio signals correspond to each of the microphones in the array of microphones. The method also includes determining a room impulse response in a subspace that is compatible with a geometry of the array of microphones based on the received audio signals.

Abstract: The invention relates to handling a message addressed to a client terminal, which client terminal includes a messaging client for handling said messages. The method includes the steps of receiving a message addressed to the client terminal, said message including content destined to an “upper level” application, the “upper level” application being an application, which is separate from the messaging client, obtaining capability information relating to said client terminal, checking whether said capability information includes information about “upper level” applications the client terminal supports, and conducting an action responsive to said checking phase.

Abstract: A method captures audio impulse responses of a person wearing electronic microphones in a left ear and a right ear. A smartphone generates a sound while it is away from but proximate to the person. The microphones capture the audio impulse responses that are used to convolve sound so it localizes away from but proximate to the person.