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Electrical Audio Signal Processing Systems And Devices > Binaural And Stereophonic

Binaural And Stereophonic

Binaural And Stereophonic patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

08/28/14 - 20140241528 - Sound field analysis system
In one embodiment, a sound field is mapped by extracting spatial angle information, diffusivity information, and optionally, sound level information. The extracted information is mapped for representation in the form of a Riemann sphere, wherein spatial angle varies longitudinally, diffusivity varies latitudinally, and level varies radially along the sphere. A...

07/10/14 - 20140192986 - Audio content playback method and apparatus for portable terminal
An audio content playback method for a portable terminal The audio content playback method includes checking a channel that is supportable by audio content that is currently engaged in group's simultaneous playback, in group's simultaneous playback of the audio content. The method includes allocating a channel to each of devices...

05/15/14 - 20140133657 - Mobile electronic device and audio playing means thereof
The present invention provides a mobile electronic device and an audio playing means thereof. The audio playing means comprises a first audio player and a second audio player for playing a left channel audio and a right channel audio respectively; a first audio receiver and a second audio receiver for...

05/15/14 - 20140133658 - Method and apparatus for providing 3d audio
Embodiments of the subject invention relate to a method and apparatus for virtualizing an audio file. The virtualized audio file can be presented to a user via, for example, ear-speakers or headphones, such that the user experiences a change in the user's perception of where the sound is coming from...

03/13/14 - 20140072120 - Method and encoder for processing a digital stereo audio signal
The invention discloses a method and an encoder for processing a digital audio stereo signal. A digital audio encoder for coding such audio signal comprises a predictive Temporal Noise Shaping (TNS) filter, a Mid-/Side (M/S) coding unit, a control unit for determining a first prediction gain related to the unmodified...

03/13/14 - 20140072121 - Audio system and method therefor
An audio system comprises a receiver which receives an input audio signal. A decomposer (103) decomposes the audio signal into at least a transient component signal and a non-transient component signal. An output circuit (105, 107, 109) then generates a first output audio signal in response to a weighted combination...

02/13/14 - 20140044266 - Real-time noise reduction apparatus for radio monitoring system
The present invention provides a real-time noise reduction apparatus for a radio monitoring system, including a dual channel digitizing unit configured to convert signals, subject to frequency down-conversion and inputted to two channels, into digital signals and a Digital Signal Processor (DSP) configured to reduce noise from time sample regions...

01/16/14 - 20140016782 - System for controlling audio frequencies of electronic appliances and a method of the same
The system comprises a master controller and an audio plug connected to the master controller. The audio plug includes at least four contacts electrically connected to corresponding poles of an audio frequency interface. Electrical coupling devices are disposed on circuits which respectively connect a first contact and a second contact...

01/16/14 - 20140016783 - Extraction of channels from multichannel signals utilizing stimulus
An approach and device for optimizing a sound system by extracting a two-channel stereo source out of a set of multiple channels with unknown frequency responses, crosstalk, time delays and sample rate by employing a digital test sequence that utilizes maximum-length-sequences (MLS) that is fed into the sound system and...

10/17/13 - 20130272525 - Apparatus and method for providing audio metadata, apparatus and method for providing audio data, and apparatus and method for reproducing audio data
An apparatus for providing audio metadata, the apparatus including an audio data generating unit to generate audio metadata including channel information of raw audio data, and an audio metadata transmitting unit to transmit the generated audio metadata to an apparatus for reproducing audio data....

10/17/13 - 20130272526 - Apparatus and method for decomposing an input signal using a downmixer
An apparatus for decomposing an input signal having a number of at least three input channels includes a downmixer for downmixing the input signal to obtain a downmixed signal having a smaller number of channels. Furthermore, an analyzer for analyzing the downmixed signal to derive an analysis result is provided,...

10/03/13 - 20130259236 - Audio apparatus and method of converting audio signal thereof
An audio apparatus and a method of converting an audio signal are provided. The method includes: receiving a first audio signal including a plurality of channels; comparing audio signals of the plurality of channels to estimate a source position of the first audio signal; localizing a source of the first...

08/08/13 - 20130202114 - Controllable playback system offering hierarchical playback options
A first apparatus performs the following: determining, using at least two microphone signals corresponding to left and right microphone signals and using at least one further microphone signal, directional information of the left and right microphone signals; outputting a first signal corresponding to the left microphone signal; outputting a second...

07/18/13 - 20130182850 - Circuits and methods to reduce pin count of a single channel device with a multi-channel serial interface
A channel selection circuit in a serial audio communication device provides channel selection for insertion or extraction of data to or from a multiplexed serial data stream without the requirement of extra channel selection inputs. The channel selection circuit has multiple counters structured such that each counter represents a channel...

05/09/13 - 20130114816 - Audio coupling system
A device for the sharing audio signals. A pair of headphones includes circuitry for connecting to an audio signal input, as is typical, but also for connecting to an audio signal output. The audio output allows a plurality of personal listening devices, for example headphones, to be linked together allowing...

02/21/13 - 20130044883 - Techniques for presenting sound effects on a portable media player
Improved techniques for presenting sound effects at a portable media device are disclosed. The sound effects can be output as audio sounds to an internal speaker, an external speaker, or both. In addition, the audio sounds for the sound effects can be output together with other audio sounds pertaining to...

01/10/13 - 20130010967 - Spatial angle modulation binaural sound system
A method of inducing a state of consciousness in a listener. The method includes providing first and second sound signals. The first sound signal is provided to one ear of the listener and the second sound signal is provided to the other ear of the listener. The second sound signal...

11/29/12 - 20120300941 - Apparatus and method for removing vocal signal
A method of removing a vocal signal is provided, the method including: extracting a difference signal between an input left signal and an input right signal of a stereo signal; obtaining left panning information of the input left signal from the input left signal, and right panning information of the...

09/06/12 - 20120224698 - Wireless audio frequency playing apparatus and wireless playing system using the same
The wireless audio frequency playing apparatus includes a digital broadcasting chip, an amplifier, and a speaker. Two-way communication is processed between the digital broadcasting chip and the wireless remote controller. A content of the digital radio broadcasting program includes audio, text, images, binary data or video. The wireless audio frequency...

08/09/12 - 20120201385 - Graphical audio signal control
Signal processing section of a terminal converts acquired audio signals of a plurality of channels into frequency spectra set, calculates sound image positions corresponding to individual frequency components, and displays, on a display screen, the calculated sound image positions results by use of a coordinate system having coordinate axes of...

08/02/12 - 20120195433 - Detection of audio channel configuration
For an audio file that includes multiple channels of audio data, a novel device for detecting the configuration of the audio channels in the multi-channel audio file is presented. The device performs one or more algorithms to determine whether two or more channels are related. Such algorithms are used to...

07/05/12 - 20120170755 - Systems and methods for stereo echo cancellation
Acoustic echoes in communications systems are distracting and undesirable. Acoustic echoes occur in communications systems where sound produced by a speaker is picked up by a microphone in a communications system. In a stereo playback environment, echo cancellation techniques become more complicated. Echo cancellation can be performed by performing echo...

06/14/12 - 20120148052 - System, method, and apparatus for conveying a signal to one or more devices
A wire system comprising a splitter integrated between two wire portions. The wire system can be used to transmit a signal between a signal source and a first output device connected to the wire portions. At any time, a user can choose to couple one or more additional output devices...

06/14/12 - 20120148053 - Directional sound system
A directional sound system is disclosed. The directional sound system (400) comprises a plurality of equalization stages (404, 406) configured to equalize an input signal; and a transducer stage (412) configured to transmit the equalized input signal; wherein the plurality of equalization stages (404, 406) comprises a first equalization stage...

03/29/12 - 20120076304 - Apparatus, method, and program product for presenting moving image with sound
According to one embodiment, an apparatus for presenting a moving image with sound includes an input unit, a setting unit, a main beam former unit, and an output control unit. The input unit inputs data on a moving image with sound including a moving image and a plurality of channels...

02/09/12 - 20120033816 - Signal processing method, encoding apparatus using the signal processing method, decoding apparatus using the signal processing method, and information storage medium
Provided is a signal processing method for processing a bitstream, an information storage medium including the bitstream, an encoding apparatus, and a decoding apparatus. The signal processing method includes: receiving a bitstream including additional information; extracting first information which is information associated with extraction of the additional information and is...

12/22/11 - 20110311057 - Audio stream transmission apparatus, audio stream reception apparatus, and transmitting and receiving method thereof
A single audio service includes a plurality of audio sources, which may be classified by type. The classified audio sources having a same type may be multiplexed together to form audio streams, which may be amplified to obtain a desired audio environment....

12/08/11 - 20110299689 - Flameless candle with multimedia capabilities
A flameless candle having speaker and lighting capability is provided. Multiple of such flameless candles can be used in a system to generate stereo or surround sound, as well as various lighting modes. The flameless candle or flameless candle system can have AM/FM radio functions, clock functions, alarm functions, etc.,...

10/27/11 - 20110261965 - Talk-through listening device channel switching
A talk-through system for hearing protectors such as headphones, helmets, earplugs and the like, in which separate left and right microphones are controlled by separate left and right switches. The microphones allow ambient sound to be heard by the wearer of the hearing protector, and normally the wearer hears audio...

10/27/11 - 20110261966 - Method and apparatus for applying reverb to a multi-channel audio signal using spatial cue parameters
A method and system for applying reverb to an M-channel down-mixed audio input signal indicative of X individual audio channels, where X is greater than M. Typically, the method includes steps of: in response to spatial cue parameters indicative of spatial image of the downmixed input signal, generating Y discrete...

09/15/11 - - Adaptive high fidelity reproduction system
Audio is adaptively associated with speakers, depending on the speaker configuration that is present. Each speaker it receives an audio assignment based on its individual spectral characteristics. As more speakers are added, content is adaptively associated with that you speaker, and taken away from the previous....

09/08/11 - 20110216905 - Channel compression
Techniques implemented as systems, methods, and apparatuses, including computer program products, for logging multi-channel audio signals. The techniques include receiving a first audio input signal over a first audio channel and a second audio input signal over a second audio channel, the first audio channel and the second audio channel...

08/25/11 - 20110206208 - Vehicle entertainment system having ground noise reduction and method of operating the same
A vehicle entertainment system and method that alternately configures an input of the entertainment system as a differential input that is decoupled from a ground point, or as ground referenced input that is coupled to a ground point. A noise detector determines a noise signal value for a ground switch...

08/25/11 - 20110206209 - Apparatus
An apparatus configured to determine at least one current phase difference between a first channel audio signal and a second channel audio signal for a current audio frame, calculate at least one phase difference estimate dependent on the at least one phase difference, determine a reliability value for each phase...

08/04/11 - 20110188660 - Method for enlarging a location with optimal three dimensional audio perception
There is provided a method for enlarging a location with optimal three-dimensional audio perception. Optimal three-dimensional audio perception may relate to a fully spatial sound effect. The method includes deriving three-dimensional encoded localization cues from an audio input signal having a first channel signal and a second channel signal; decoding...

06/30/11 - 20110158413 - Apparatus and method for a complete audio signal
The present invention relates to an apparatus and method for redeeming otherwise closed and concealed information contained in audio signals. An active circuit balances the ratio between in-phase and out-of-phase signals through the application of sum and difference signals and adjusts the ratio of gain in stereophonic signals as well...

06/23/11 - 20110150227 - Signal processing method and apparatus
Provided is a signal processing method which calculates a correlation coefficient indicating the degree of relation in a stereo signal and extracts a speech signal from the stereo signal by using the correlation coefficient and the stereo signal....

05/19/11 - 20110116638 - Apparatus of generating multi-channel sound signal
An apparatus of generating a multi-channel sound signal is provided. The apparatus may include a sound separator to determine a number (N) of sound signals based on at least one of a mixing characteristic and a spatial characteristic of a multi-channel sound signal when receiving the multi-channel sound signal, and...

04/14/11 - 20110085668 - 2.1 crossover equalization in pc audio applications
Challenges to the implementation of equalization in the 2.1 environment arise from the constraints imposed by HD audio requirements and Windows® Vista™. A hybrid software hardware solution overcomes many of the challenges by exploiting the software capability for equalization and using a hardware codec to perform the separation into high...

04/07/11 - 20110081022 - Audio jack with emi shielding
An audio jack for an audio plug for use in an electrical device, comprising a non-conductive enclosure having a front side and defining a cavity having an aperture within the front side for receiving the audio plug, the aperture having a first diameter, the cavity extending along a longitudinal axis;...

03/17/11 - 20110064228 - Data processing apparatus and parameter generating apparatus applied to surround system
Calculation is performed for sound paths 112-1, 114-1 along which sounds emitted from a sound emitting point 104 in an acoustic space 102 are reflected and delivered to a sound receiving point 106. By the calculation, entering angles eR1, eR2 by which the sound paths enter the front side 106a...

03/17/11 - 20110064229 - Audio signal decoding device and balance adjustment method for audio signal decoding device
Fluctuation in decoded signal localization is suppressed to maintain the feel of stereo. A selection unit (220) selects balance parameters when the balance parameters are input from a gain coefficient decoding unit (210), or selects balance parameters input from a gain coefficient calculation unit (223) when there is no balance...

03/03/11 - 20110051935 - Method and apparatus for encoding and decoding stereo audio
A method of encoding stereo audio that minimizes a number of pieces of side information required for parametric-encoding and parametric-decoding of the stereo audio. The side information may include parameters about interchannel intensity difference (IID), interchannel correlation (IC), overall phase difference (OPD), and interchannel phase difference (IPD), which are required...

02/03/11 - 20110026717 - Audio output device and audio output method
An audio output device includes: a speaker unit including at least first to third speakers; and an audio signal processor configured to select either one of a first mode for outputting a stereo audio signal from the first and second speakers and a second mode for outputting a monaural audio...

02/03/11 - 20110026718 - Virtualizer with cross-talk cancellation and reverb
Audio loudspeaker and headphone virtualizers and cross-talk cancellers and methods use separate virtual speaker locations for different Bark frequency bands and a single reverberation filter for multi-channel virtualizer inputs....

01/27/11 - 20110019828 - Apparatus and method for sound enhancer
Apparatuses, methods, and systems directed to enhancing sound quality in audio signal transmissions. Some embodiments of the present invention comprise an audio signal processor operable to boost one or more frequency components of an input signal. In one embodiment, the audio signal processor boosts three frequency components comprising frequency bands...

12/09/10 - 20100310079 - Method for encoding and decoding multi-channel audio signal and apparatus thereof
Methods and apparatuses for encoding and decoding a multi-channel audio signal are provided. In the encoding method, spatial information is calculated based on a multi-channel audio signal and a down-mix signal, and a compensation parameter that compensates for the down-mix signal is calculated based on the multi-channel audio signal and...

12/02/10 - 20100303243 - method and an apparatus for processing a signal
A method of processing a signal is disclosed, which includes receiving a downmix signal, object information and rendering information; and generating downmix processing information using the object information and the rendering information, the object information including modified object level information, wherein the modified object level information is determined using a...

11/18/10 - 20100290628 - Signal processing apparatus
A signal processing apparatus is provided. The signal processing apparatus comprises: an inputting section for inputting audio signals on a plurality of channels; an acoustic type acquiring section which is adapted to acquire an acoustic type of an audio signal on at least one channel of the audio signals; and...

11/11/10 - 20100284541 - Receiving apparatus
A receiving apparatus comprising: a frequency conversion unit configured to convert a received radio frequency signal to an intermediate frequency signal; an automatic gain control unit configured to control an amplitude level of at least either one of the radio frequency signal and the intermediate frequency signal according to a...

11/11/10 - 20100284542 - Matrix decoder
This audio matrix surround decoder requires minimal digital processing, useful in portable applications, particularly in playback from a portable player using a headphone or loudspeaker virtualizer. In one embodiment it pans inputs Lt and Rt to outputs associated with front directions in response to a measure of the sum of...