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 Audio system for an aircraft patent thumbnailAudio system for an aircraft
An audio system for an aircraft of the type which includes radiocommunications units and a management unit to which are connected by cables, pieces of audio equipment . Each audio equipment piece includes a generator which, under control of the control unit, is configured to generate a pulsed coded audio signal and inject the signal into a same cable as that used for conveying the audio signals coming from the audio unit of the audio equipment, each code formed by a pulsed coded audio signal being representative of a piece of audio equipment.
Airbus Operations (s.a.s.)


 Relaying device, audio communication system, relaying  audio signal, and program patent thumbnailRelaying device, audio communication system, relaying audio signal, and program
[solution] this relaying device is provided with a network communication unit, a control unit, and a storage unit. The control unit divides the communication area of a communication network into a plurality of partial communication areas and stores, in the storage unit, location information indicating which partial communication area each terminal device is in.

 Audio signal processing device, audio signal processing method, and audio signal processing program patent thumbnailAudio signal processing device, audio signal processing method, and audio signal processing program
A frequency domain converter is configured to create a plurality of pieces of frequency domain information by individually converting a plurality of input audio signals, which is acquired at different positions, into frequency domain information. A relative value calculator is configured to calculate a relative value of time frequency components of at least one set of frequency domain information among the plurality of pieces of frequency domain information.
Jvc Kenwood Corporation


 Device and  improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension  audio signals patent thumbnailDevice and improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension audio signals
An apparatus for generating a bandwidth extended audio signal from an input signal, includes a patch generator for generating one or more patch signals from the input signal, wherein the patch generator is configured for performing a time stretching of subband signals from an analysis filterbank, and wherein the patch generator further includes a phase adjuster for adjusting phases of the subband signals using a filterbank-channel dependent phase correction.. .
Dolby International Ab


 Decorrelator structure for parametric reconstruction of audio signals patent thumbnailDecorrelator structure for parametric reconstruction of audio signals
An encoding system encodes multiple audio signals (x) as a downmix signal (y) together with wet and dry upmix coefficients (p, c). In a decoding system, a pre-multiplier (101) computes an intermediate signal (w) by mapping the downmix signal linearly in accordance with a first set of coefficients (q); a decorrelating section (102) outputs a decorrelated signal (z) based on the intermediate signal; a wet upmix section (103) computes a wet upmix signal by mapping the decorrelated signal linearly in accordance with the wet upmix coefficients; a dry upmix section (104) computes a dry upmix signal by mapping the downmix signal linearly in accordance with the dry upmix coefficients; a combining section (105) provides a multidimensional reconstructed signal (x) by combining the wet and dry upmix signals; and a converter (106) computes the first set of coefficients based on the wet and dry upmix coefficients and supplies this to the pre-multiplier..
Dolby International Ab


 Gaming headset with programmable audio paths patent thumbnailGaming headset with programmable audio paths
A headset having game, chat and microphone audio signals is provided with a programmable signal processor for individually modifying the audio signals and a memory configured to store a plurality of user-selectable signal-processing parameter settings that determine the manner in which the audio signals will be altered by the signal processor. The parameter settings collectively form a preset, and one or more user-operable controls can select and activate a preset from the plurality of presets stored in memory.
Voyetra Turtle Beach, Inc.


 Voip routing based on rtp server-to-server routing patent thumbnailVoip routing based on rtp server-to-server routing
A system and method of providing voip services by using multiple real-time transport protocol servers (rtp) servers for transmitting voip data between user endpoints. The rtp servers are selected based on the network addresses of the respective endpoints according to the network topology.
Algoblu Holdings Limited


 Method and  detecting noise of audio signals patent thumbnailMethod and detecting noise of audio signals
A method and an apparatus for detecting noise of audio signals are provided. The method includes steps of converting an audio signal into a plurality of audio frames, where the audio frames are arranged in chronological order while taking a target frame as a center, calculating a plurality of magnitudes respectively corresponding to a plurality of spectral components of each of the audio frames, calculating differences between the adjacent magnitudes in a time-frequency domain to obtain a plurality of difference values in at least two directions orthogonal to each other in the time-frequency domain, where the time-frequency domain is defined by the audio frames, determining a maximum degree of difference of the magnitudes in the time-frequency domain according to the difference values, and determining whether a part of the audio signal corresponding to the target frame is a noise according to the maximum degree of difference..
Faraday Technology Corp.


 System and  detecting and analyzing a threat in a confined environment patent thumbnailSystem and detecting and analyzing a threat in a confined environment
A system and method of detecting and analyzing a threat in a confined environment is disclosed. An audio board detects and analyzes audio signals.
Battelle Memorial Institute


 Methods, systems, and devices for adaptively filtering audio signals patent thumbnailMethods, systems, and devices for adaptively filtering audio signals
Systems, methods, and devices for adaptively filtering audio signals are disclosed. An example system includes a microphone configured to generate a first audio signal in response to receiving a sound, an output transducer configured to provide an output, and a sound processor configured to: (i) filter a first sample of the audio input signal using an adaptive filter to provide a first filtered audio input signal, with the dynamic range of the adaptive filter being limited by an initial value of at least one parameter filter; (ii) process the first filtered audio signal to provide a output audio signal; and (iii) cause the output transducer to provide an output that is based at least in part on the output audio signal.

Led lighting device and speaker


The present invention provides a multifunctional led device and multifunctional speaker system. The multifunctional led device includes a power supply unit; a control unit configured to process audio signals and control commands; an audio power amplifier configured to drive a speaker; a speaker; a first wireless transceiver configured to communicate with a smart terminal; a second wireless transceiver configured to communicate with other led devices; and an led light source.
Zhejiang Shenghui Lighting Co., Ltd


System and a conference server architecture for low delay and distributed conferencing applications


Systems and methods for conducting a multi-endpoint video signal conference are provided. Conferencing endpoints are linked by pairs of a reliable and a less reliable communication channel.
Vidyo, Inc.


Relaying device, audio communication system, program and relaying method


[solution] the relaying device is provided with a network communication unit, a control unit, and a priority information storage unit. A network communication unit communicates with a plurality of terminal devices via a communication network.

Wirelessly charged electronic device with shared inductor circuitry


An electronic device may contain an input-output device such as a speaker, vibrator, or near field communications antenna. The input-output device may include an inductor.
Apple Inc.


Payment media reading device, control a payment media reading device, and a payment processing system


A payment media reading device connected to the headphone jack a of a mobile terminal has a nfc reading unit that reads payment-related information from payment medium m and inputs the read payment-related information to the microphone input terminal of the headphone jack, and a power supply circuit that acquires power for the nfc reading unit from the audio signals output from the left speaker output terminal of the headphone jack.. .

Smart lighting device, and smart lighting control system and method


The present disclosure provides a smart lighting device, and a smart lighting control system and method. The smart lighting device includes a human detection module, a control module, and a microphone module.
Sengled Optoelectronics Co., Ltd.


Relaying device, audio-communication system and relaying relaying audio signal


[solution] the relay device is provided with a network communication unit, a control unit, and a session table. The network communication unit receives, from the terminal devices, an audio signal to which is attached information for designating the terminal device of the other party of communication.

Method and processing audio signals


To this end, provided are a method for processing an audio signal including: receiving multi-audio signals including multi-channel or multi-object signals; receiving truncated subband filter coefficients for filtering the multi-audio signals, the truncated subband filter coefficients being at least a portion of subband filter coefficients obtained from a binaural room impulse response (brir) filter coefficient for binaural filtering of the multi-audio signals, and the lengths of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients; and filtering the subband signal by using the truncated subband filter coefficients corresponding to each subband signal of the multi-audio signals and an apparatus for processing an audio signal using the same.. .

Mating assurance system and method


A mating assurance system includes first and second microphones configured to be located in a vicinity of a mating zone for electrical connectors. The first microphone is located a first distance from the mating zone and the second microphone being located a second distance from the mating zone.
Tyco Electronics Corporation


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System and improving hearing


A system and method for improving hearing is disclosed. The system includes a microphone array that includes an enclosure, a plurality of beamformer microphones and an electronic processing circuitry to provide enhanced audio signals to a user by using information obtained on the position and orientation of the user.
Noopl, Inc.


Parametric reconstruction of audio signals


An encoding system (400) encodes an n-channel audio signal (x), wherein n≧3, as a single-channel downmix signal (y) together with dry and wet upmix parameters (c, p). In a decoding system (200), a decorrelating section (101) outputs, based on the downmix signal, an (n−1)-channel decorrelated signal (z); a dry upmix section (102) maps the downmix signal linearly in accordance with dry upmix coefficients (c) determined based on the dry upmix parameters; a wet upmix section (103) populates an intermediate matrix based on the wet upmix parameters and knowing that the intermediate matrix belongs to a predefined matrix class, obtains wet upmix coefficients (p) by multiplying the intermediate matrix by a predefined matrix, and maps the decorrelated signal linearly in accordance with the wet upmix coefficients; and a combining section (104) combines outputs from the upmix sections to obtain a reconstructed signal (x) corresponding to the signal to be reconstructed..
Dolby International Ab


Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio signals


A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multi-channel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals.
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.


Hand carried alerting sound generator device


A method and device for generating alerting sounds and broadcasting the same into the interior of a building so that an occupant can be made aware of the presence of a visitor at a door to the building. The sounds are generated by an exciter feature of a transducer held in a case, able to be gripped in one hand of a user, the exciter feature being able to be pressed against an exterior surface of the door by the user moving the case to a position adjacent to the door.

Adaptive diffuse signal generation in an upmixer


An audio processing system, such as an upmixer, may be capable of separating diffuse and non-diffuse portions of n input audio signals. The upmixer may be capable of detecting instances of transient audio signal conditions.
Dolby Laboratories Licensing Corporation


Audio-video data switching and viewing system


A computer system and method providing for viewing and switching of audio-video data. The system comprises: a plurality of audio/video sources containing information referring to an event; a streaming server, streaming the contents of a first audio signal and a first video signal from the audio and video sources to a user; a feed distributor controllably feeding the first audio signal and first video signal to the streaming server; and a user-operated control unit communicating with the feed distributor and controlling operation of the feed distributor, so as to instruct the feed distributor to switch between audio or video.

Selective post filter


In another aspect, there is provided an audio decoding method with a decoding step followed by a post-filtering step, including interharmonic noise attenuation, and being characterized in a step of disabling the post filter in accordance with post filtering information encoded in the bit stream signal. Such a method is well suited for mixed-origin audio signals by virtue of its capability to deactivate the post filter in dependence of the post filtering information only, hence independently of factors such as the current coding mode..

Method and device for audio signal processing


To this end, provided are a method for processing an audio signal including: receiving multi-audio signals including multi-channel or multi-object signals, each of the multi-audio signals including a plurality of subband signals, and the plurality of subband signals including a signal of a first subband group having low frequencies and a signal of a second subband group having high frequencies based on a predetermined frequency band; receiving at least one parameter corresponding to each subband signal of the second subband group, the at least one parameter being extracted from binaural room impulse response (brir) subband filter coefficients corresponding to each subband signal of the second subband group; and performing tap-delay line filtering of the subband signal of the second subband group by using the received parameter and an apparatus for processing an audio signal using the same.. .

Systems and methods for mutual authentication of electronic devices


Embodiments are provided for mutually authenticating a pair of electronic devices. According to certain aspects, the electronic devices may connect to each other via an out-of-band communication channel.
Google Inc.


Method for transmitting and/or receiving audio signals


A method for transmitting and/or receiving a potential aggressor audio signal includes a transmission and/or a reception of successive groups of data timed by a first clock signal within respective successive frames synchronized by a second clock signal. In the presence of a risk of interference of the potential aggressor audio signal with a different, potential victim, signal, during the transmission or reception of the potential aggressor audio signal, the frequency of the first clock signal is modified while keeping the frequency of the second clock signal unchanged..
Stmicroelectronics (alps) Sas


Smart lighting device, and smart lighting control system and method


The present disclosure provides a smart lighting device, and a smart lighting control system and method. The smart lighting device includes a wireless communication module, a control module, an image acquisition module configured to collect images/videos near the smart lighting device in real-time and to send the images/videos to the control module for analysis, and a microphone module configured to have operation modes including a sleep mode and a monitor mode to receive a control signal from the control module to switch between the operation modes, and to collect audio signals in the surrounding area of the smart lighting device when operated at the monitor mode.
Sengled Optoelectronics Co., Ltd


Auxiliary bluetooth device


An auxiliary wireless device having a transceiver, battery pack and an audio connector is disclosed herein. The device may also have a button for making the device findable by a second wireless enabled device.

Auxiliary bluetooth device


An auxiliary wireless device having a transceiver, battery pack and an audio connector is disclosed herein. The device may also have a button for making the device findable by a second wireless enabled device.

System and capturing, encoding, distributing, and decoding immersive audio


A sound field coding system and method that provides flexible capture, distribution, and reproduction of immersive audio recordings encoded in a generic digital audio format compatible with standard two-channel or multi-channel reproduction systems. This end-to-end system and method mitigates any impractical need for standard multi-channel microphone array configurations in consumer mobile devices such as smart phones or cameras.
Dts, Inc.


Modular headrest-based audio system


An automobile audio system includes a signal processor configured to receive and process audio signals from a source and provide processed audio signals to an amplifier, a first headrest including a headrest speaker and coupled to a driver's seat, a first fixed speaker positioned near a left corner of the vehicle's cabin forward of the headrest, a second fixed speaker positioned near a right corner of the vehicle's cabin forward of the headrest, and a headrest accessory port located in a passenger's seat. The port is configured to connect the audio system to a second headrest speaker.
Bose Corporation


Hearing instrument with t-coil


A hearing instrument is provided that has a t-coil antenna (14) for picking up an inductively transmitted base-band audio signal, an audio signal processing unit (16) for processing the picked-up t-coil audio signal, an output transducer (18) for stimulation of the user's hearing according to the processed audio signals, and a functional unit (22) that operates in a duty cycling mode and communicates with the audio signal processing unit the respective interference points at which the functional unit is switched from its inactive state to its active state and/or from its active state to its inactive state, wherein the audio signal processing unit applies a click removal treatment to the t-coil audio signal during the respective interference points at the time at which the functional unit is switched to and/or from its active state.. .
Sonova Ag


Modulation parametric loudspeaker systems


Modulation systems and methods for use in parametric loudspeaker systems that can dynamically adjust modulation depths of ultrasonic carrier signals based on the levels of audio signals that the parametric loudspeaker systems are called upon to reproduce. The modulation systems and methods employ a dynamic level control function for determining a modulation offset that allows, (1) for low audio signal levels, a reduction of the modulation offset to obtain a reduced ultrasonic signal level, (2) for high level audio signals, full or maximum modulation of the ultrasonic carrier signal at an increased ultrasonic signal level, and, (3) for intermediate audio signal levels, under-modulation of the ultrasonic carrier signal at an intermediate ultrasonic signal level..

Non-linear echo path detection


A user terminal comprising; a loudspeaker; a microphone; and an audio signal processing module comprising: a reference signal generator configured, prior to establishment of a communication event over a network with at least one further terminal, to generate and output an audio reference signal to the loudspeaker for playout; an echo removal module configured to perform echo removal on audio signals received via the microphone during the communication event; and a detector configured, prior to establishment of the communication event, to: determine characteristics of the reference signal; receive an audio signal output from the microphone which includes echo resulting from the outputted reference signal; determine characteristics of the received audio signal; compare the determined characteristics of the reference signal with determined characteristics of the received audio signal to detect a nonlinear echo path of the echo, and configure a component of the audio signal processing module based on this detection.. .
Microsoft Technology Licensing, Llc


Coding of multichannel audio content


There are provided decoding and encoding methods for encoding and decoding of multichannel audio content for playback on a speaker configuration with n channels. The decoding method comprises decoding, in a first decoding module, m input audio signals into m mid signals which are suitable for playback on a speaker configuration with m channels; and for each of the n channels in excess of m channels, receiving an additional input audio signal corresponding to one of the m mid signals and decoding the input audio signal and its corresponding mid signal so as to generate a stereo signal including a first and a second audio signal which are suitable for playback on two of the n channels of the speaker configuration..
Dolby International Ab


Audio recording and playback apparatus


An apparatus comprising: an input configured to receive at least two audio signals, the at least two audio signals having a relative displacement between them; an orientation determiner configured to determine an audio capture orientation based on a device orientation and information concerning microphone configuration in the apparatus; and an audio output generator configured to output the at least two audio signals based on the capture orientation, such that playback of the at least two audio signals is performed based on the capture orientation.. .
Nokia Corporation


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Adaptive beamforming for eigenbeamforming microphone arrays


An exemplary audio signal processing system includes a modal decomposer and an adaptive modal beamformer. The modal decomposer generates a plurality of zeroth-order eigenbeams from audio signals from an (e.g., spherical) array of audio sensors.
Mh Acoustics, Llc


Non-uniform parameter quantization for advanced coupling


The present disclosure provides methods, devices and computer program products for non-uniform quantization of parameters relating to parametric spatial coding of audio signals. The disclosure further relates to a method and apparatus for reconstructing an audio object in an audio decoding system taking the non-uniformly quantized parameters into account.
Dolby International Ab


Method and detecting a watermark symbol in a section of a received version of a watermarked audio signal


In watermark symbol detection for watermarked audio signals a correlation and statistical detection is used, which is computationally complex. Therefore a downsampling can be used prior to the correlation.
Thomson Licensing


Audio signal processing apparatus


An audio signal processing apparatus includes an input unit configured to receive input of audio signals of a plurality of channels, an obtaining unit configured to obtain position information of a sound source, a sound field effect sound generating unit configured to generate a sound field effect sound by individually imparting a sound field effect to an audio signal of each of the channels, and a control unit configured to control the sound field effect to be imparted in the sound field effect sound generating unit, based on the position information.. .
Yamaha Corporation


Processing of multi device audio capture


It is inter alia disclosed to select, by a first apparatus, one or more recording devices to obtain a set of selected recording devices, or to receive, at the first apparatus, information on a set of one or more selected recording devices. The selected recording devices in the set of selected recording devices are selected from a set of recording devices at least based on relevance levels determined for the recording devices of the set of recording devices.
Nokia Technologies Oy


Multi-channel wireless microphone system


A multi-channel wireless microphone system. The wireless microphone system has a plurality of diversity antennas with a wide-band noise generator which can be switched on and a plurality of wireless receivers for wirelessly receiving the audio signals sent from a wireless microphone system.
Sennheiser Electronic Gmbh & Co. Kg


Method and apparatus to enhance speech understanding


A personal mobile communications device, such as a smartphone, which increases the intelligibility of the speaker, is described. The speaker reads a specified text into the personal mobile communications device.
Social Microphone, Inc.


Pitch filter for audio signals


In some embodiments, a pitch filter for filtering a preliminary audio signal generated from an audio bitstream is disclosed. The pitch filter has an operating mode selected from one of either: (i) an active mode where the preliminary audio signal is filtered using filtering information to obtain a filtered audio signal, and (ii) an inactive mode where the pitch filter is disabled.
Dolby International Ab


System and device for nearfield gunshot and explosion detection


A computer-implemented system for nearfield gunshot and explosion detection comprising a hardware device with a differential air pressure sensor, a pressure amplifier that amplifies pressure signals generated by the differential air pressure sensor, a microphone, a microphone amplifier that amplifies audio signals generated by the microphone, and a pulse counter that calculates a total event length. The system includes a digital processor that processes the amplified signals from the differential air pressure sensor and the microphone and a data radio that generates alerts based on input from the differential air pressure sensor and the microphone.
Tracer Technology Systems Inc.


Systems and methods for interactive communication between an object and a smart device


Methods for interactive communication between an object and a smart device are provided. Signals can be transmitted from the smart device to the object to control movement of a movable part at the object.
Future Of Play Global Limited


Audio processing system


An audio processing apparatus is configured to process audio signals from a plurality of sources. The audio processing apparatus may include a digital interface to receive status data indicating a status of at least one source, and an optical output device having a plurality of groups of graphics display areas which are respectively assigned to one of a plurality of audio channels of the audio processing apparatus.
Harman International Industries Ltd.


Noise-reducing directional microphone array


In one embodiment, a directional microphone array having (at least) two microphones generates forward and backward cardioid signals from two (e.g., omnidirectional) microphone signals. An adaptation factor is applied to the backward cardioid signal, and the resulting adjusted backward cardioid signal is subtracted from the forward cardioid signal to generate a (first-order) output audio signal corresponding to a beampattern having no nulls for negative values of the adaptation factor.
Mh Acoustics, Llc


External speaker/microphone use with an electrical device for providing audio signals and/or for voice communication


The present invention relates to an external speaker/microphone apparatus for use with an electrical device for providing audio signals and/or for voice communication. The apparatus comprises: one or more speakers and one or more microphones; and a housing that encloses the one or more speakers and the one or more microphones.
Binauric Se


Audio decoder with core decoder and surround decoder


A method performed by an audio decoder for reconstructing n audio channels from an audio signal containing m audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal having m audio channels and a set of spatial parameters, the set of spatial parameters including an inter-channel intensity difference parameter and an inter-channel coherence parameter.
Dolby International Ab


Reconstructing audio channels with a fractional delay decorrelator


A method performed by an audio decoder for reconstructing n audio channels from an audio signal containing m audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal having m audio channels and a set of spatial parameters, the set of spatial parameters including an inter-channel intensity difference parameter and an inter-channel coherence parameter.
Dolby International Ab


System for managing an avionic communications log


A system for managing a communications log of audio data transmissions received and/or transmitted by an ownship aircraft includes a display screen, a memory operable to store audio signals and data associated with audio data transmissions, and a processor coupled to the display screen and to the memory. The processor determines the transmission frequency and time of receiving each received audio data transmission and creates a plurality of discrete display messages that include text identifying the determined frequency and time of receiving each received audio data transmission.
Garmin International, Inc.


Cochlear implant and an operating method thereof


A cochlear implant is disclosed in an embodiment. The implant includes a signal level detector configured to determine a total signal level of an incoming acoustic signal and a processing unit configured to determine, in accordance with the determined total signal level, an intermediate knee point for each of a plurality of frequency bands.
Oticon Medical A/s


Sound capturing and reproducing sounds originating from a plurality of sound sources


A sound system and method for capturing and reproducing sounds produced by a plurality of sound sources are disclosed. Sounds produced by the plurality of sound sources may be received and converted separately to separate audio signals without mixing the audio signals.
Verax Technologies, Inc.


Method and processing audio signals


To this end, provided are a method for processing an audio signal including: receiving multi-audio signals including multi-channel or multi-object signals; receiving truncated subband filter coefficients for filtering the multi-audio signals, the truncated subband filter coefficients being at least a portion of subband filter coefficients obtained from a binaural room impulse response (brir) filter coefficient for binaural filtering of the multi-audio signals, and the lengths of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients; and filtering the subband signal by using the truncated subband filter coefficients corresponding to each subband signal of the multi-audio signals and an apparatus for processing an audio signal using the same.. .

Wireless speaker and system


A wireless audio speaker system that includes a speaker main unit and multiple functions provided by exchangeable accessories is disclosed. The speaker main unit includes a top sleeve and a bottom sleeve that covers the external surface of a more internal enclosure that houses the main unit electronics and circuitry.
Braven Lc


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Method and encoding and decoding audio signal


Provided are an apparatus and a method for encoding and decoding audio signals, in which when determining a masking threshold according to a psychoacoustic model, accurate results may be obtained for a short window-based audio signal as well as for a long window-based audio signal. The apparatus for encoding audio signals according to the present invention comprises a masking threshold determining unit configured to determine, on the basis of a frame length of a first window having a divided audio signal, a masking threshold for a second window that has a different frame length from that of the first window..
Samsung Electronics Co., Ltd.


Headphones having an attached sound module


Provided is a headphone system, comprising a sound module and a headphone body. The sound module comprises a module attachment interface, a module audio interface, and a controller.
Afc Trident, Inc.


Processing spatially diffuse or large audio objects


Diffuse or spatially large audio objects may be identified for special processing. A decorrelation process may be performed on audio signals corresponding to the large audio objects to produce decorrelated large audio object audio signals.

Method and system for headset with automatic source detection and volume control


An audio headset receives one or more audio signals carrying one or more audio channels and processes the audio channels to generate stereo signals for output to a left and a right speaker of the audio headset. The processing determines a number of the audio channels carried in the received audio signal(s), adjusts level(s) of the audio channels based on the determined number of audio channels and/or adjusts gain and/or phase of the audio channels to control a perceived location of a listener wearing the headset relative to a source of sounds carried in the stereo signals..

Binaural recording for processing audio signals to enable alerts


A wearable device for binaural audio is described. The wearable device includes a feedback mechanism, a microphone, an always on binaural recorder (aobr), and a processor.

Method of operating a computer and computer for a softphone with headset


A computer controller for a plurality of audio devices and audio applications and a method of control is disclosed. An audio subsystem is disclosed allowing multiple applications executed by the computer to exchange audio signals with multiple sound interface devices.

Adaptive loudness levelling digital audio signals in frequency domain


Embodiments of the present disclosure are directed to techniques for adjusting the amplitude of a digital audio signal in the frequency domain to control the perceived loudness of the audio signal at a desired level. In one embodiment, a method first adjusts the audio signal to a desired loudness level by applying an adaptive wideband gain and thereafter a multi-band compression is applied to further reduce a dynamic range of the audio signal, and noise analysis and temporal masking operations are also performed to provide a pleasant sound for a listener or listeners..

Reconstructing audio signals with multiple decorrelation techniques


A method performed in an audio decoder for decoding m encoded audio channels representing n audio channels is disclosed. The method includes receiving a bitstream containing the m encoded audio channels and a set of spatial parameters, decoding the m encoded audio channels, and extracting the set of spatial parameters from the bitstream.

Speech recognition wake-up of a handheld portable electronic device


A system and method for parallel speech recognition processing of multiple audio signals produced by multiple microphones in a handheld portable electronic device. In one embodiment, a primary processor transitions to a power-saving mode while an auxiliary processor remains active.

Apparatus and automatically creating and recording minutes of meeting


An electronic apparatus for automatically acquiring and revising minutes of a meeting and a method thereof includes the steps of identifying one or more speakers from audio signals which are recorded during a meeting, based on pre-sampled audio signals and a voice feature table stored in a non-transitory storage medium. The audio signals are converted to text and divided into paragraphs, one paragraph being attributable to one speaker, and each speaker has a given user name.

Content metadata directory services


audio signals are processed in a distributed reader and metadata routing system to provide metadata responses to mobile application programs. A routing system registers identifiers for different content id schema.

Vehicle child safety device (vcsd)


A vehicle safety child device to detect a child left unattended in a vehicle may include a circuit to receive a location signal from a satellite; a circuit to receive audio signals from the interior of a vehicle; a circuit to connect to a control circuit of the vehicle; and a cellular circuit to activate a cellular signal to a cellular antenna. An alarm is activated when the audio signal exceeds a predetermined level..

Interior rearview mirror system for vehicle


An interior rearview mirror system for a vehicle includes an interior rearview mirror assembly comprising a mirror head. The mirror head includes a first microphone operable to generate a first audio signal and a second microphone operable to generate a second audio signal.

Method for processing of sound signals


A method for processing audio signals for creating a three dimensional sound environment comprises: receiving at least one input signal from at least one sound source; creating a simulated signal at least partly based on the received at least one input signal, the simulated signal representing a simulation of at least one input signal reflecting from the ground or a floor; and creating an output signal at least partly on the basis of the simulated signal and the at least one received input signal, the output signal comprising a plurality of audio channels; at least two channels of the audio channels of the output signal representing signals for sound transducers above a listener's ear level at a nominal listening position, and at least two channels of the audio channels of the output signal representing signals for sound transducers below a listener's ear level at a nominal listening position.. .

Method and providing virtual audio reproduction


A method, apparatus and computer program product are provided to permit audio signals to provide additional information to a user regarding the distance to the source of the audio signals, thereby increasing a user's situational awareness. In the context of a method, a distance and a direction from a user to an object are determined.

System and listening to teams in a race event


A computer-implemented method and system allows a remote computer user to listen to teams in a race event. The method includes receiving audio signals from a plurality of audio sources at the race event; transmitting at least some of the audio signals to a remote computer; and filtering the audio signals as a function of the source of at least some of the audio signals so that at least some of the audio signals are not played by the remote computer and heard by the user..

Electronic handheld audio/video receiver and listening/viewing device


A handheld device in an audio and video system including a system for receiving and processing video and/or audio signals, a system for displaying a virtual image to a user, and a system for producing sounds audible to a user. The handheld device also incorporates a shroud to block ambient light when the handheld unit is engaged with the user's face.

Audio processing based upon camera selection


A method including generating respective audio signals from microphones of an apparatus; determining which camera(s) of a plurality of cameras of the apparatus has been selected for use; and based upon the determined camera(s) selected for use, selecting an audio processing mode for at least one of the respective audio signals to be processed, where the audio processing mode at least partially automatically adjusts the at least one respective audio signals based upon the determined camera(s) selected for use.. .

Video-based sound source separation


A sound source separation method comprising the steps of determining at least one location of at least one sound source based on video data, determining initial estimates of at least two parameters characterizing an audio signal emitted by said sound source, said initial estimates being determined based on said at least one location, performing an expectation-maximization method for determining final estimates of said parameters, and separating the audio signal from a combination of audio signals based on said final estimates of said parameters.. .

Audio signal processing circuit


An audio signal processing circuit includes a first obtaining unit, a regulation unit, a second obtaining unit, and a synthesis unit. The first obtaining unit obtains high-frequency audio signals from original audio signals.

User specified keyword spotting using long short term memory neural network feature extractor


Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recognizing keywords using a long short term memory neural network. One of the methods includes receiving, by a device for each of multiple variable length enrollment audio signals, a respective plurality of enrollment feature vectors that represent features of the respective variable length enrollment audio signal, processing each of the plurality of enrollment feature vectors using a long short term memory (lstm) neural network to generate a respective enrollment lstm output vector for each enrollment feature vector, and generating, for the respective variable length enrollment audio signal, a template fixed length representation for use in determining whether another audio signal encodes another spoken utterance of the enrollment phrase by combining at most a quantity k of the enrollment lstm output vectors for the enrollment audio signal..

Connectorized cochlear implant systems


An exemplary system includes 1) a cochlear implant module configured to be implanted within a patient and including cochlear implant circuitry configured to apply electrical stimulation representative of one or more audio signals to the patient, 2) a first connector assembly coupled to the cochlear implant module and configured to be implanted within the patient, the first connector assembly including a first induction coil, 3) an implantable module configured to be implanted within the patient, and 4) a second connector assembly coupled to the implantable module and configured to be implanted within the patient, the second connector assembly including a second induction coil. The first connector assembly may be configured to be removably connected to the second connector assembly in order to facilitate inductive transfer of power between the first induction coil and the second induction coil.

Method for rendering multi-channel audio signals for l1 channels to a different number l2 of loudspeaker channels and rendering multi-channel audio signals for l1 channels to a different number l2 of loudspeaker channels


Multi-channel audio content is mixed for a particular loudspeaker setup. However, a consumer's audio setup is very likely to use a different placement of speakers.
Thomson Licensing


Solid state relay circuit arrangement for audio signals and switching system


A solid state relay circuit arrangement for audio signals is described, of the type comprising a first mosfet and a second mosfet in a back-to-back configuration, adapted to receive an input signal on the source electrode of the first mosfet and to take the output signal on the source electrode of the second mosfet, with a driving voltage being applied to the gate electrodes of said first mosfet and second mosfet, apt to change, on the basis of its value, the operational state of said first mosfet and second mosfet, according to the invention, each of said first mosfet and second mosfet includes a respective bypass capacitor arranged between its source electrode and its gate electrode, having such a capacitance value to determine a bypass path for the input signal from the source electrode to the gate electrode in the operating frequency range of said input signal.. .
Magneti Marelli S.p.a.


Audio signal processing method and apparatus and differential beamforming method and apparatus


An audio signal processing method and apparatus and a differential beamforming method and apparatus to resolve a problem that an existing audio signal processing system cannot process audio signals in multiple application scenarios at the same time. The method includes determining a super-directional differential beamforming weighting coefficient, acquiring an audio input signal and determining a current application scenario and an audio output signal, acquiring, a weighting coefficient corresponding to the current application scenario, performing super-directional differential beamforming processing on the audio input signal using the acquired weighting coefficient in order to obtain a super-directional differential beamforming signal in the current application scenario, and performing processing on the formed signal to obtain a final audio signal required by the current application scenario.
Huawei Technologies Co., Ltd.


Use of a cable for the transmission of audio signals


According to the invention, a cable (10) is used to transmit audio signals, in particular analogue audio signals. Said cable comprises at least two conductors (12.1, 12.2, 12.3, 12.4), a first connection piece on a first end of the cable (10) for connecting the cable (10) to a first device and a second connection piece on a second end of the cable (10) for connecting the cable (10) to a second device.

Active noise cancelling device and actively cancelling acoustic noise


An active noise cancelling device including a sensor configured to convert acoustic signals into first audio signals and a speaker acoustically coupled to the sensor a control stage is configured to control the speaker based on the first audio signals to cause the speaker to produce cancelling acoustic waves that tend to suppress acoustic noise components in the acoustic signals. The control stage includes sigma-delta modulator digital filters..
Stmicroelectronics (shenzhen) R&d Co. Ltd


Method and controlling audio output


A method, apparatus and computer program product are provided to enhance the experience of a user of a computing device, such as a computing device having a plurality of speakers. In the context of a method, content is caused to be presented upon the display.
Nokia Technologies Oy


Wireless audio transmission system, in particular wireless microphone system


A wireless audio transmission system which has at least one wireless transmitter for the wireless transmission of a detected audio signal as a first audio signal by way of a first wireless transmission path. The wireless audio transmission system further has at least one in-ear monitor unit for directly receiving the first audio signal and for receiving a second audio signal.
Sennheiser Electronic Gmbh & Co. Kg


Dual-element mems microphone for mechanical vibration noise cancellation


Disclosed are systems, devices, and methods for minimizing mechanical-vibration-induced noise in audio signals. In one aspect, a microphone is disclosed that includes a first backplate, a first diaphragm, a second backplate, and a second diaphragm.
Google Inc.


Wireless connection and control wireless sound box and system thereof


A wireless connection and control method for wireless sound box and system thereof, comprising a control application installed in a mobile electronic device and a wireless sound box, such that, when a user starts the control application of the mobile electronic device, it is possible to input control instructions via an operation interface. Following this, the control application converts the transmission packet data represented by the control instruction into audio signals hardly interfered by human voice and perceptible by human ears in order to constitute an encrypted audio.
Jazz Hipster Corporation


Method and managing audio signals


A method comprising: detect a first acoustic signal by using a microphone array; detecting a first angle associated with a first incident direction of the first acoustic signal; and storing, in a memory, a representation of the first acoustic signal and a representation of the first angle.. .
Samsung Electronics Co., Ltd.


Pitch filter for audio signals


In some embodiments, a pitch filter for filtering a preliminary audio signal generated from an audio bitstream is disclosed. The pitch filter has an operating mode selected from one of either: (i) an active mode where the preliminary audio signal is filtered using filtering information to obtain a filtered audio signal, and (ii) an inactive mode where the pitch filter is disabled.
Dolby International Ab


A shared audio scene apparatus


An apparatus comprising: an input configured to select at least two audio signals; a classifier configured to segment the at least two audio signals based on at least two defined class definitions; a class segment analyser configured to determine a difference measure between at least a pair of common class segments from the at least two audio signals using a class based analyser; and a difference analyser configured to determine the at least two audio signal common class segments are within a common event space based on the difference measure.. .
Nokia Technologies Oy


Method for siren detection based on audio samples


The present disclosure provides methods and apparatuses that enable an apparatus to identify sounds from short samples of audio. The apparatus may capture an audio sample and create several audio signals of different lengths, each containing audio from the captured audio sample.
Google Inc.


Enhanced sound field coding using parametric component generation


The present document relates to multichannel audio coding and more precisely to techniques for discrete multichannel audio encoding and decoding. In particular, the present document relates to systems and method for coding soundfields.
Dolby International Ab


Bitstream syntax for spatial voice coding


An encoding system (100) encodes a first (e1) and further (e2, e3) audio signals as a layered bitstream (b), wherein a quantizer for each frequency band of each signal is selected using a rate allocation rule based on signal-specific rate allocation data, a spectral envelope of the signal and a reference level (enve1max), which is determined based on the spectral envelope of the first signal and is not necessarily included in the bitstream. Further disclosed is a decoding system for reconstructing the audio signals based on the bitstream.
Dolby International Ab


Interactive sound reproducing


An audio system attachable to a computer includes a sound reproduction device for producing audible sound from audio signals. The sound reproduction device includes a radio tuner and a powered speaker.
Bose Corporation


Point-to-point ad hoc voice communication


A wireless communication device establishes voice communication between a supported user and a selected remote device supporting another user via a point-to-point wireless ad hoc network link. The device selects a particular remote device, establishes an ad hoc network link with the selected remote device, and communicates voice communication signals with the selected remote device.
Apple Inc.


Bass management for audio rendering


Improved methods and devices for processing low-frequency audio data are provided. A bass extraction process may involve applying low-pass filters to received audio object signals, to produce extracted low-frequency audio signals.
Dolby Laboratories Licensing Corporation


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Mechanically actuated panel acoustic system


An electronic device whose enclosure or housing panel is used as part of an acoustic system is described. The panel is divided into several sub-panels.
Apple Inc.


Audio/video synchronization using a device with camera and microphone


Methods, systems, and apparatuses are described for performing a calibration process for synchronizing audio signals with video signals. The calibration process may be performed between one or more devices of an entertainment system and a handheld device.
Branch Media Labs, Inc.




Audio Signals topics:
  • Audio Signals
  • Signal Processing
  • Multimedia
  • Ip Address
  • Ip Multimedia Subsystem
  • Multimedia Device
  • Feedback Signal
  • Formatting
  • Audio Signal Processing
  • Electronic Device
  • Cell Phone
  • Instruments
  • Control Bus
  • Electrical Signal


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