|| List of recent Audio Signals-related patents
| Receiver intelligibility enhancement system|
Embodiments of the invention provide a system and a method for enhancing audio signals. A first audio signal buffer and a second audio signal buffer are acquired.
| Ecg sensing apparatuses, systems and methods|
Aspects of the present disclosure are directed to processing ecg signals from a subject. As may be implemented in accordance with one or more embodiments, respective electrodes sense ecg signals from a subject, and the ecg signals are digitized and processed, such as to remove noise, detect a qrs complex, evaluate quality, detect arrhythmia and/or to store the signals.
| Audio signal mixing|
A system and a method for mixing at least two audio signals are provided that comprise transferring the audio signals with respective transfer functions, the audio signals each having an amplitude and a phase; adding the audio signals to provide an output signal representative of the mixed audio signals, the output signal having an amplitude and a phase; controlling at least one of the transfer functions of the signal lines so that the phase of the output signal is adapted to the phase of the audio signal with a higher signal strength than the other audio signal(s), the signal strengths corresponding to the amplitudes of the audio signals.. .
| Wearable device for relieving tinnitus, hyperacusis and/or hearing loss|
A wearable device and computerized system and method for configuring a wearable device for use in the treatment of tinnitus, hyperacusis, and/or hearing loss is disclosed. A software application for use by an audiologist facilitates the diagnosis and assessment of a patient's needs and programming of the wearable device with customized settings and/or audio signals specific to the patient's needs.
| Receiver intelligibility enhancement system|
Embodiments of the invention provide a communication device and methods for enhancing audio signals. A first audio signal buffer and a second audio signal buffer are acquired.
| Directional coding conversion|
A directional coding conversion method and system includes receiving input audio signals that comprise directional audio coded signals into which directional audio information is encoded according to a first loudspeaker setup and extracting the directional audio coded signals from the received input audio signals. The method and system further includes decoding, according to the first loudspeaker setup, the extracted directional audio coded signals to provide at least one absolute audio signal and corresponding absolute directional information and processing the at least one absolute audio signal and the absolute directional information to provide first output audio signals coded according to a second loudspeaker setup..
|Dynamic voiceprint authentication|
A dynamic device key that identifies and authenticates a device and its user includes data representing captured sound of the user speaking a disposable pass phrase. The convenient and secure authentication of voice recognition is combined with convenient and secure device authentication by including biometric voice-recognition of the user in the dynamic device key.
|Multiple concurrent audio modes|
Embodiments described herein include devices and processes for concurrently processing different audio streams with different hardware-based audio processing modes. A computing device for such embodiments may have multiple hardware audio signal processing modes capable of parallel execution.
|Method and system of personalized broadcast service on public transportation|
A method for implementing broadcast service and a broadcast service system are provided. The information transmitted may be personalized for a user of a public transportation system.
|High definition multimedia interface and network interface adapter device|
An adapter device converting hdmi signals to a format suitable for network transmission includes a hdmi module, a network module, and a light guiding pipe between the two. The hdmi module includes a hdmi plug and a first photoelectric converter.
|Sound stage controller for a near-field speaker-based audio system|
Signals in an automobile audio system having at least two near-field speakers located close to an intended position of a listener's head are adjusted such that in a first mode, audio signals are distributed to the near-field speakers according to a first filter that causes the listener to perceive a wide soundstage, and in a second mode, the audio signals are distributed to the near-field speakers according to a second filter that causes the listener to perceive a narrow soundstage. A user input of a variable value is received and, in response, distribution of the audio signals is transitioned from the first mode to the second mode, the extent of the transition being variable based on the value of the user input..
|Sound synthesis with fixed partition size convolution of audio signals|
A method for convolving an input signal with an impulse response function, the impulse response function being partitioned into a plurality of time segments of equal size, the method including transforming a segment of an input signal into the frequency domain to generate a frequency spectrum of the segment of the input signal; multiplying the frequency spectrum of the segment of the input signal with a frequency spectrum of each of the segments of the impulse response function; scaling the results from the multiplication of frequency spectra; accumulating the scaled results; and performing an inverse transform on the accumulated signals to generate a desired convolved signal in the time domain. The scaling includes performing a bitwise shift operation on the multiplication results, and performing the bitwise shift operation includes adding a bit to the multiplication results before the bitwise shift operation.
|Mobile device localization using audio signals|
Mobile device localization using audio signals is described. In an example, a mobile device is localized by receiving a first audio signal captured by a microphone located at the mobile device and a second audio signal captured from a further microphone.
|Electronic device and method for switching recording modes|
A method for switching recording modes using an electronic device requires a three-axis acceleration senor and at two microphones. The three-axis accelerometer is activated to detect three-axis acceleration values of the electronic device.
|Mobile digital communication/computing device having a context sensitive audio system|
A mobile client device, such as a wireless mobile or a palm sized personal digital assistant, is provided with at least a first and second audio resources and companion programming instructions/circuitry to generate various audio signals in a more context sensitive manner, while multi-media resources are being utilized. The instructions/circuitry cause the mobile client device to determine a first audio volume level at which the mobile client device is being utilized by a user for a first audio signal.
|Method and a device for reproducing low frequency sound in a rectangular room|
For reproducing sound in a rectangular room in association with a video playback screen (10), from audio signals of the kind comprising at least three main channels (2, 3, 4) and a bass effects channel (1), at least five loudspeakers (11, 12, 13, 14, 15) are used that are specialized for reproducing audio frequencies lower than 120 hz, four of which (11, 13, 14, 15) are arranged in four respective corners of the room and at least one of them (12) is arranged in the proximity of the screen. The two loudspeakers (14, 15) arranged in the corners furthest away from the screen receive either a signal constituted by the sum of the signals for the other loudspeakers with polarity inversion, with individual delays, and with lowpass filtering, or else a signal coming from a microphone (23, 25) arranged in the immediate proximity of each of the two loudspeakers (14, 15) concerned, the microphone signal being inverted in polarity and lowpass filtered..
|Sound system for establishing a sound zone|
A system and method for acoustically reproducing at least two electrical audio signals and establishing at least two sound zones that are represented by individual patterns of reception sound signals includes processing the at least two electrical audio signals to provide processed electrical audio signals; converting the processed electrical audio signals into corresponding acoustic audio signals with at least two loudspeakers that are arranged at positions separate from each other; transferring each of the acoustic audio signals according to a transfer matrix from each of the loudspeakers to each of the sound zones where they contribute to the reception sound signals; and processing of the at least two electrical audio signals comprises inverse filtering according to a filter matrix. Inverse filtering is configured to compensate for the room transfer matrix so that each one of the reception sound signals corresponds to one of the electrical audio signals..
|Communication system and transfer method thereof|
A communication system is provided. A receiver receives a plurality of audio signals, wherein a frequency of each of the audio signals is selected from a frequency group formed by at least three frequencies.
An apparatus configured to: determine a viewing angle associated with at least one apparatus camera; determine from at least two audio signals at least one audio source orientation relative to an apparatus; and generate at least one spatial filter including at least a first orientation range associated with the viewing angle and a second orientation range relative to the apparatus.. .
|Earphone system and related method of temporarily increasing volume|
An earphone system with temporary volume shifting function includes a speaker receiving audio signals and converting the received audio signals into sound, the speaker having a first end and a second end therein, a first resistor electrically connected to the first end of the speaker, and a switch configured between the first resistor and the speaker to control current flowing through the first resistor to the first end of the speaker. A first current flows through the speaker to output a first volume from the speaker when the switch is deactivated by a user who does not operate the switch, and a second current flows through the speaker to output a second volume from the speaker when the switch is activated by the user who operates the switch, and the second volume is greater than the first volume..
|Sound system for establishing a sound zone|
A system and method for acoustically reproducing k electrical audio signals (where k=2, 3, 4, . .
|Speaker apparatus suitable for use with a computer|
A speaker apparatus suitable for use with a computer operable for communicating audio signals to the speaker apparatus. The speaker apparatus includes a housing having a top portion and a body portion adjacent the top portion.
|Multi-channel audio rendering|
A multi-channel audio rendering system comprises an audio renderer (113) which generates audio signals for a plurality of audio channels. A plurality of interchangeable speaker units (101-109) comprises a battery (205) and an audio transducer (207) for rendering an audio signal.
|Audio processing apparatus, reproduction apparatus, audio processing method and program|
The disclosed apparatus extracts particular instrument sounds included in music in real time during music reproduction. The audio processing section 12 has an attack decision section 42 that decides attack positions of the bass drum sounds in audio signals, a bass drum sounds decision section 43 that decides sound periods of the bass drum in the audio signals, and a bass drum sounds extraction section 44 that extracts bass drum sounds using a time varying type filter for the attack positions and an adaptive type filter for the sound periods..
|Electronic device and method for reproducing audio signals|
In a method of reproducing audio signals using an electronic device, the electronic device decodes an audio file to generate original digital audio signals, and attenuates the original digital audio signals having frequencies that are lower than a preset cutoff frequency. The electronic device further amplifies each of attenuated digital audio signals and the original digital audio signals having frequencies that are higher than the preset cutoff frequency with a preset gain.
|Method, an apparatus and a computer program for determination of an audio track|
An audio processing apparatus is provided. The apparatus comprising an audio analysis unit configured to obtain a group of audio signals, each audio signal associated with an image of a group of images, the group of images being provided for a presentation having an assigned overall viewing time with each image having an assigned viewing time, and to analyze at least one of the audio signals to determine one or more intermediate audio signals for determination of an audio track having a first duration, which first duration essentially covers said assigned overall viewing time.
|Frame loss compensation method and apparatus for voice frame signal|
A frame loss compensation method and apparatus for audio signals are disclosed. The method includes: when a first frame immediately following a correctly received frame is lost, judging a frame type of the first lost frame, and when the first lost frame is a non-multi-harmonic frame, calculating mdct coefficients of the first lost frame by using mdct coefficients of one or more frames prior to the first lost frame; obtaining an initially compensated signal of the first lost frame according to the mdct coefficients of the first lost frame; and performing a first class of waveform adjustment on the initially compensated signal of the first lost frame and taking an adjusted time-domain signal as a time-domain signal of the first lost frame.
|Method, application, and device for audio signal transmission|
The current invention discloses methods, applications, and devices for audio transmission from a mobile terminal. After receiving an audio signal transmission request from a user, the mobile terminal may initiate a recording session to record audio signals into audio frames.
|Driver identification and data collection systems for use with mobile communication devices in vehicles|
Systems, methods, and devices for determining the location of one or more mobile devices within a vehicle comprising: (a) a controller located within the vehicle and configured to transmit at least two audio signals, a first audio signal directed generally into a driver space within the vehicle and a second audio signal directed generally into a passenger space within the vehicle, and (b) software code stored in memory of the mobile device and having instructions executable by a processor that performs the steps of: (i) detecting the at least two audio signals, (ii) sampling the at least two audio signals for a predetermined period of time; (iii) performing digital signal processing on the sampled at least two audio signals; and (iv) based on the results of the digital signal processing, determining whether the mobile device was located within the driver space of the vehicle during the predetermined period of time.. .
|Methods and devices for reproducing surround audio signals|
Method and devices for providing surround audio signals are provided. Surround audio signals are received and are binaurally filtered by at least one filter unit.
|Method and apparatus for outputting audio signal, method for controlling volume|
A method and apparatus for outputting an audio signal and a method of adjusting the volume of an audio signal are provided. An embodiment of the present invention provides a method for outputting an audio signal that includes: (a) determining an output level of a modulated signal to be outputted for each respective frequency band by using a hearing threshold measured for the respective frequency band; and (b) outputting the modulated signal and an audio signal simultaneously.
|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.
|Automatic volume control for combined game and chat audio|
A system comprising audio processing circuitry is provided. The audio processing circuitry is operable to receive combined-game-and-chat audio signals generated from a mixing together of a chat audio signal and game audio signals.
|Satisfying specified intent(s) based on multimodal request(s)|
Techniques are described herein that are capable of satisfying specified intent(s) based on multimodal request(s). A multimodal request is a request that includes at least one request of a first type and at least one request of a second type that is different from the first type.
The invention relates to audio conferencing. Audio signals are received and transformed to a spectrum, and then modified by mel-frequency scaling and logarithmic scaling before a second-order transform.
|Toy stuffed animal with remote video and audio capability|
A toy stuffed animal with remote video and audio capability that includes a camera configured to capture video data through at least one eye, a first microphone disposed within the toy configured to capture audio data emitted proximal the toy, and a first transmitter in wireless communication with a second receiver disposed within a handheld communicator, wherein video and audio data captured from scenes proximal the toy are wirelessly communicable to the communicator and remotely payabale thereon by means of a display and a second speaker, respectively, whereby depression of a talk button upon the communicator enables transmission of audio signals received through a second microphone and relayed through a second transmitter in the communicator back to a first receiver in the toy, whereby said signals are playable upon a first speaker disposed within the toy so that the toy appears to speak sensibly and intelligently in response to stimuli.. .
|Infrared reception circuit and infrared reception method|
An infrared reception circuit and an infrared reception method are provided. The infrared reception circuit includes an infrared receiver for receiving infrared signals and converting the infrared signals into analog signals, an amplifier for amplifying the analog signals, an analog/digital converter for converting the amplified analog signals into digital signals, a digital filter for filtering the digital signals via respective frequency bands, a digital frequency-adjusting demodulator for demodulating the filtered digital signals into digital audio frequency signals, and a digital/analog converter for converting the digital audio frequency signals into analog audio signals.
|Sound field adaptation based upon user tracking|
Embodiments are disclosed that relate to adapting sound fields in an environment. For example, one disclosed embodiment includes receiving information regarding a user in the environment, and outputting one or more audio signals to one or more speakers based on the information.
|Method and an apparatus for automatic volume leveling of audio signals|
There is provided a method for audio signal adjustment comprising: determining a loudness estimate for at least one frame of an audio signal; determining a level value for the at least one frame based on the loudness estimate; and adjusting the audio signal based on the level value. An apparatus for carrying out the method is also provided..
|Systems and methods for stereoisation and enhancement of live event audio|
Systems and methods to deliver live sound with enhanced quality conveyed by a mixing desk to a mobile computing device user contemporaneously with external live sounds. The mobile computing device is operable to receive enhanced audio signals produced by a remote audio signal processing device through a communication work.
|Electronic device with speakerphone and microphone|
An electronic device with speakerphone and microphone is provided. The electronic device comprises a housing, a sound input unit, a sound output unit, an audio signal receiving terminal, an acoustic processing unit, a signal line and a sealing member.
|Methods and apparatus for processing audio signals|
Various methods and apparatus for processing audio signals are disclosed herein. The assembly may be attached, adhered, or otherwise embedded into or upon a removable oral appliance to form a hearing aid assembly.
|Method of controlling an effect strength of a binaural directional microphone, and hearing aid system|
A hearing aid system has at least two hearing aid devices to be worn on both sides of a wearer's head. The hearing aid devices have a transducer for picking up an acoustic signal and converting same into a first audio signal in each case.
|Method for adjusting the useful signal in binaural hearing aid systems and hearing aid system|
A method operates a hearing aid system and the hearing aid system has at least two hearing aid devices, between which a signal path is provided, and with at least one signal processing unit, which is provided to process audio signals. In the method the signal processing apparatus filters first audio signals with a filter predetermined for a defined spatial direction, from which a useful signal arrives, so that second audio signals are generated, in which the components of the useful signal in the second audio signals are equalized to a greater degree than in the first audio signals.
|Method and system for modifying a sound field at specified positions within a given listening space|
An audio system provides modified audio signals for acoustic output sources (speakers) disposed around a listening area. A sound allocation processor receives an audio source signal.
|Multiplexing audio system and method|
A method and system for multiplexing audio signals into a single channel uses frequency division multiplexing. The frequency division multiplexing method herein is based on a frequency transform algorithm using fft shifting that does not require a carrier signal for the modulation.
|Display apparatus, 3d glasses, and display system including the same|
A display apparatus, three-dimensional (3d) glasses, and a display system including the display apparatus and the 3d glasses are provided. The 3d glasses which interwork with an external display apparatus include: a wireless receiver which receives a sync signal and audio signals from the external display apparatus; a shutter driver which drives shutters according to the received sync signal; and an audio output part which processes and outputs the received audio signal.
|Integrated circuit for video / audio processing|
An integrated circuit for video/audio processing in which design resources obtained by development of video/audio devices can also be used for other types of video/audio devices. The integrated circuit includes a microcomputer that includes a cpu, a stream input/output for inputting/outputting a video and audio stream to and from an external device, a media processor that executes the media processing including at least one of compressing and decompressing the video and audio stream inputted to the stream input/output, an av input/output that converts the video and audio stream subjected to the media processing by the media processor into video and audio signals and outputting these signals to the external device.
|Signal codec device and method in communication system|
The present invention relates to a codec device and method for encoding/decoding voice and audio signals in a communication system, wherein: a fixed codebook excited signal is generated by using a pulse index for a voice signal; a first adaptive codebook excited signal is generated by using a pitch index for the voice signal; a fixed codebook signal is generated by multiplying the fixed codebook excited signal by a fixed codebook gain; a first adaptive codebook signal is generated by multiplying the first adaptive codebook excited signal by a first adaptive codebook gain; and a synthesized filter excited signal is generated by adding the fixed codebook signal and the first adaptive codebook signal.. .
|Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding|
A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands.
|Digital audio routing system|
A digital audio routing system providing a process and system for managing multi-channel audio signals and a plurality of language signals, and decoding the signals into serial sound data to create a program serial data and a plurality of language serial data. The program serial data and the plurality of language serial data are aligned, and the program serial data is separated.
|Methods and apparatuses for encoding and decoding object-based audio signals|
Provided are an audio encoding method and apparatus and an audio decoding method and apparatus in which audio signals can be encoded or decoded so that sound images can be localized at any desired position for each object audio signal. The audio decoding method generating a third downmix signal by combining a first downmix signal extracted from a first audio signal and a second downmix signal extracted from a second audio signal; generating third object-based side information by combining first object-based side information extracted from the first audio signal and second object-based side information extracted from the second audio signal; converting the third object-based side information into channel-based side information; and generating a multi-channel audio signal using the third downmix signal and the channel-based side information..
|System and method for real-time synthesis and performance enhancement of audio/video data, noise cancellation, and gesture based user interfaces in a vehicular environment|
A method includes establishing communication channels between an on-board unit (obu) of a vehicle and a plurality of nodes, tagging each of a plurality of data from the plurality of nodes with a priority level, storing the plurality of data in a priority queue according to respective priority levels, selecting a medium to present a first data of the plurality of data to a user, and presenting the first data to the user via the medium. In the method, the plurality of nodes includes a remote node and an in-vehicle device.
|Method and apparatus for configuration and control of mixer for audio system using wireless docking system|
Efficiency for mixing audio signals from one or more portable user devices in an audio system employing a number of docking station is achieved by a docking station that includes a controller for detecting the presence of an activated mixer associated with another docking station in the system. The controller activates its associated mixer when no activated mixer associated with another docking host in the system is detected.
|System for audio signal rebroadcasting from a t.v. set|
A remote audio rebroadcasting and monitoring system has been disclosed which consists of a transmitter device and one or more remote wireless broadcast receiver devices. An audio input signal is extracted from an external universal output port integrated with a t.v.
|Embedded audio routing switcher|
An apparatus includes a separator for selectively separating audio from input signals including video with audio, a switcher for selectively transferring the input signals to at least one output, a multiplexed path for sending the separated audio signal to the at least one output, the at least one output being configured for selectively directing the input signals and separated audio signals.. .
|Methods and apparatuses for encoding and decoding object-based audio signals|
An audio decoding method and apparatus and an audio encoding method and apparatus which can efficiently process object-based audio signals are provided. The audio decoding method includes receiving a downmix signal and object-based side information, the downmix signal comprising at least two downmix channel signals; extracting gain information from the object-based side information and generating modification information for modifying the downmix channel signals on a channel-by-channel basis based on the gain information; and modifying the downmix channel signals by applying the modification information to the downmix channel signals..
|Image capturing apparatus, signal processing apparatus and method|
A signal processing apparatus reduces noise by generating an interpolated signal for a noise-containing period using audio signals in periods before and after the noise-containing period, and replacing an audio signal in the noise-containing period with the interpolated signal. Here, the signal processing apparatus determines whether a phoneme is the same or different between before and after the noise-containing period, and controls a method for generating the interpolated signal in accordance with a result of the determination..
|Bandwidth extension of audio signals|
Audio decoder and method therein for supporting bandwidth extension (bwe) of a received signal. The method involves receiving a first signal representing the lower frequency spectrum of a segment of an original audio signal; receiving a second signal, being a bwe signal, representing a higher frequency spectrum of the segment of the original audio signal.
|Audio output module for use in artifical voice system|
The invention disclosed is an improved audio output module for use with an artificial voice generation device, having a housing separated into a sound system chamber, an interface chamber, and a power source chamber. The interface and power source chambers may be combined.
|Audio playback system and method used in handheld electronic device|
An audio playback system used in a handheld electronic device is provided. The audio playback system comprises an audio interface, a control module, an audio processing module and at least two audio playback modules.
|Portable electronic device and display method|
A portable electronic device includes an earphone jack, a display, a video card, a switch, a conversion module, and a transmission module. The video card converts digital video signals into analog video signals and sends the analog video signals to the display.
|Audio mixing based upon playing device location|
A method including determining location of at least one second device relative to a first device, where at least two of the devices are configured to play audio sounds based upon audio signals; and mixing at least two of the audio signals based, at least partially, upon the determined location(s).. .
|Methods and apparatus to detect spillover in an audience monitoring system|
Methods and apparatus to detect spillover in an audience monitoring system are disclosed. An example method includes sampling a first audio signal from a first source received by a first microphone; sampling a second audio signal received by a second microphone from the first source, wherein the second microphone is separated from the first microphone by a first distance; calculating an origin direction of the first source based on a time difference between receipt of the first and second audio signals; when the origin direction is within a threshold angle, retaining the media associated with the first source; and when the origin direction exceeds the threshold angle, ignoring the media associated with the first source.
|Providing content on multiple devices|
Techniques for receiving a voice command from a user and, in response, providing audible content to the user using a first device and providing visual content for the user using a second device. In some instances, the first device includes a microphone for generating audio signals that include user speech, as well as a speaker for outputting audible content in response to identified voice commands from the speech.
|Method and apparatus for pre-processing audio signals|
The disclosure is directed to pre-processing audio signals. In one implementation, an electronic device receives an audio signal that has audio information, obtains auxiliary information (such as location, velocity, direction, light, proximity of objects, and temperature), and determines, based on the audio information and the auxiliary information, a type of audio environment in which the electronic device is operating.
|Methods and systems for automatic enablement or disablement of noise reduction within a communication device|
The invention automatically enables and disables noise reduction based on a noise threshold. This threshold can be pre-defined by a user for a particular machine or can be defined “on the fly” before/during a telephonic conversation.
|Noise cancelling microphone apparatus|
Example embodiments include a method of reducing noise include forming a main signal and one or more reference signals at a beam-former based on at least two received audio signals, detecting voice activity at a voice activity detector, where the voice activity detector receives the main and reference signals and outputting a desired voice activity signal, adaptively cancelling noise at an adaptive noise canceller, where the adaptive noise canceller receives the main, reference, and desired voice activity signals and outputs an adaptive noise cancellation signal, and reducing noise at a noise reducer receiving the desired voice activity and adaptive noise cancellation signals and outputting a desired speech signal.. .