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Electrical Audio Signal Processing Systems And Devices > Binaural And Stereophonic > Pseudo Stereophonic Pseudo StereophonicPseudo Stereophonic patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.09/13/07 - 20070211904 - Stereophonic sound reproducing system and stereophonic sound reproducing apparatus A surround system 100 is constructed by: a sound source output device 110 for outputting bit stream data of a predetermined format; a signal processor 120 for performing a signal process on every audio signal of each channel; and a speaker system 130 made of various speakers corresponding to various ... 08/09/07 - 20070183603 - Generation of customised three dimensional sound effects for individuals A system for customising the synthesis and generation of spatial hearing in virtual auditory space (VAS) for individual listeners includes a measuring ruler (12) and a digital processing unit (DPU) (14) to which the ruler (12) is connected. The ruler (12) is used for measuring various physical dimensions of the ... 07/12/07 - 20070160216 - Acoustic synthesis and spatialization method The invention relates to the synthesis and the joint spatialization of sounds emitted by virtual sources. According to the invention, a step (ETA) is provided that consists of determining parameters including at least one gain (gi) for defining, at the same time, a loudness characterizing the nature of the virtual ... 07/05/07 - 20070154020 - Sound image localization apparatus A sound image localization apparatus comprises an L direct output section that produces an output signal by inputting an audio signal of a rear left audio input channel to a filter having a characteristic obtained by dividing RLD by LD, an L cross output section that produces an output signal ... 07/05/07 - 20070154019 - Apparatus and method of reproducing virtual sound of two channels based on listener's position An apparatus and method of reproducing a virtual sound of two channels which adaptively reproduces a 2-channel stereo sound signal reproduced through a recording medium such as DVD, CD, or MP3 player etc., based on a listener's position. The method includes sensing a listener's position and recognizing distance and angle ... 06/14/07 - 20070133810 - Sound field correction apparatus A sound field correction apparatus that corrects a sound field characteristic by supplying a measurement signal used for measurement purposes to drive a plurality of speakers arranged at arbitrary positions to reproduce the measurement signal and receiving a collected sound signal obtained by collecting the sound reproduced from the plurality ... 06/07/07 - 20070127727 - Sound signal processor and method for processing sound signal using the same A sound signal processor and a method for processing a sound signal using the same enables the elimination of a plop noise generated in the course of a sound mode checking operation. The sound signal processor receives a sound intermediate frequency (SIF) signal and includes a channel mode discriminator for ... 05/24/07 - 20070116295 - System and method for real time emulation of communication systems One inventive aspect relates to an emulation system for real-time simulation of the physical layer of an analog communication system based at least on partly digital computation. The emulation system comprises a digital portion configured to perform digital computations and represent at least part of the signal propagation in the ... 05/17/07 - 20070110249 - Method of acoustic signal reproduction Up to now, there have existed filters having a transfer function for canceling crosstalk components arriving from loudspeakers, at the listener's right/left ear, however, such filters have been incapable of properly reducing the inter-loudspeaker crosstalk components inside the casing of a mobile terminal. Therefore, when input signals are expected to ... 05/03/07 - 20070098181 - Signal processing apparatus and method A signal processing apparatus includes a first band-dividing unit that divides a first-channel sound signal of two-channel sound signals into signals of a plurality of frequency bands; a second band-dividing unit that divides a second-channel sound signal of the two-channel sound signals into signals of a plurality of frequency bands; ... 05/03/07 - 20070098180 - Speaker-characteristic compensation method for mobile terminal device To date, there has been no speaker-characteristic compensation method including a processing step of reducing crosstalk between speakers incorporated in a mobile terminal. Accordingly, it has been impossible to reduce crosstalk that, in a mobile terminal, occurs between speakers. A speaker-characteristic compensation method, for a mobile terminal device having at ... 04/26/07 - 20070092085 - Signal processing device and sound image orientation apparatus A signal processing device includes a filter that is set to frequency characteristics in which a dip existing in an intermediate and high frequency range is smoothed in the frequency characteristics of a virtual characteristic applying filter for applying transfer characteristics of a space transfer path to a sound signal, ... 04/05/07 - 20070076892 - Apparatus and method to cancel crosstalk and stereo sound generation system using the same An apparatus and method for canceling crosstalk between 2-channel speakers and two ears of a listener in a stereo sound generation system. The crosstalk canceling apparatus includes a first signal processing unit to cross-mix first and second channel signals with gain and delay-adjusted first and second channel signals, a second ... 03/01/07 - 20070047736 - Sound signal processing device To simplify the structure of a sound signal processing device for automatically switching between generation of pseudo-surround sound and generation of pseudo-stereo sound based on whether an original sound signal is stereo or monaural. A stereo sound decoder for receiving a sound channel signal of a TV receiving signal determines ... 02/08/07 - 20070030977 - Array speaker system Input audio signals are divided into low-frequency components and high-frequency components, both of which are subjected to delay processing in correspondence with desired positions of focal points with respect to speaker units respectively. Delayed low-frequency components are further subjected to weighting using a first window function. Delayed high-frequency components are ... 02/08/07 - 20070030976 - Array speaker system An array speaker system, in which a plurality of speaker units are arranged in an array and are supplied with signals having prescribed time differences so as to perform directivity control on audio signal beams emitted therefrom, includes a delay memory (e.g., a shift register) having plural delay taps for ... 02/01/07 - 20070025556 - Sound source separation apparatus and sound source separation method A sound source separation apparatus includes a first sound source separation unit that performs blind source separation based on independent component analysis to separate a sound source signal from a plurality of mixed sound signals, thereby generating a first separated signal; a second sound source separation unit that performs real-time ... 02/01/07 - 20070025555 - Method and apparatus for processing information, and computer product A sound-signal generating unit generates, when a positional relationship between a local information processing apparatus and a user is acquired, a sound signal that makes the user perceive a virtual sound source at a predetermined position in a three-dimensional space based on the acquired positional relationship. ... 01/25/07 - 20070019812 - Method and apparatus to reproduce wide mono sound A wide mono sound reproducing method and apparatus to widen mono sound by using 2 channel speakers. The method include separating an input mono sound signal into a plurality of decorrelated signals, generating virtual sound sources by localizing each of the separated signals at virtual locations asymmetrical about a center ... 01/18/07 - 20070014417 - Accoustic processing device To realize virtual surround reproduction with small deterioration in the SN ratio of an entire reproduction system, in the case of adding together virtual surround signals and front-channel audio signals in an adder 1300, volume normalization is carried out in a volume normalizing section 1200 before the addition. In the ... 01/04/07 - 20070003069 - Perceptual synthesis of auditory scenes An auditory scene is synthesized by applying two or more different sets of one or more spatial parameters (e.g., an inter-ear level difference (ILD), inter-ear time difference (ITD), and/or head-related transfer function (HRTF)) to two or more different frequency bands of a combined audio signal, where each different frequency band ... 01/04/07 - 20070003068 - Apparatus and method for effecting sound stage expansion An apparatus for effecting sound stage expansion in an audio system presenting two sound channels includes: (a) A first signal source coupled for providing at least one first signal representing a first sound channel to at least one first input locus of a first amplifying unit. The first amplifying unit ... 12/28/06 - 20060291665 - Sound image position correction system, sound image position correction method, and audio/display apparatus The present invention provides a sound image position correction system that applies sound image position correction processing to a voice signal so that an optimal sound image position is obtained. There is provided a sound image position correction system which corrects the position of a sound image output from a ... 12/14/06 - 20060280311 - Apparatus and method for generating a low-frequency channel For generating a low-frequency channel for a low-frequency loudspeaker arranged at a predetermined low-frequency loudspeaker position, a plurality of audio objects are initially provided, each audio object having an object position and an object description associated with it. Hereafter, a calculation of an audio object scaling value is performed for ... 12/07/06 - 20060274902 - Audio processing An audio processing apparatus operable to determine, for each loudspeaker of a plurality of loudspeakers, the respective volume at which an audio signal is to be output through that loudspeaker, the volume being determined in dependence on a desired characteristic of a simulated source for the audio signal, the position ... 12/07/06 - 20060274901 - Audio image control device and design tool and audio image control device The sound image control device filters transfer functions H3 and H1 indicating transfer characteristics of a sound from an acoustic transducer (8) to entrances to respective ear canals (1) and (2) as well as filtering transfer functions H4 and H2 from an acoustic transducer (9) to the entrances to the ... 11/30/06 - 20060269071 - Virtual sound localization processing apparatus, virtual sound localization processing method, and recording medium A virtual sound localization processing apparatus which forms first/second main signals for localizing a sound image to a predetermined position around the listener from acoustic signals of a sound source includes: first/second output terminals for outputting acoustic signals to be supplied to first/second speakers arranged to left and right; third/fourth ... 11/30/06 - 20060269070 - Playback apparatus and playback method A playback apparatus includes a forming section which, on the basis of an audio signal to be played back, forms audio signals on a plurality of channels for emitting sounds from a pair of sound sources, and a signal processing section which, on each of the audio signals formed by ... 11/30/06 - 20060269069 - Compact audio reproduction system with large perceived acoustic size and image A compact audio reproduction system for two input signals includes at least four loudspeakers disposed at the vertices of a quadrilateral not more than two feet on any side and such that no two loudspeakers are located at a distance from one another which is less than one-fourth the greatest ... 11/23/06 - 20060262935 - System and method for creating personalized sound zones Speakers deployed in a space and divided into groups associated with different zones produce a mix of sounds that create internal noise pollution and, combined with external noise, an unpleasant environment for occupants. The present invention contemplates sound systems and methods for creating personalized sound zones to address these and ... 11/16/06 - 20060256970 - Acoustic apparatus, time delay computation method, and recording medium An acoustic apparatus includes a positive value conversion section configured to convert, into a positive value, a response signal obtained by collecting a test signal emitted from a speaker using a microphone; a detection section configured to detect a first transient response part that becomes a first mountain portion of ... 11/16/06 - 20060256969 - Audio device and method for generating surround sound An audio device capable of easily generating two or more sets of surround signals based on 2-channel stereo signals and a method for generating surround sound are provided. The audio device 100 includes: an SL signal generation section 20 and a BL signal generation section 40 as first surround signal ... 11/09/06 - 20060251263 - Audio user interface (ui) for previewing and selecting audio streams using 3d positional audio techniques An audio user interface (UI) for comparing and selecting audio streams is presented. In general, the present invention allows a user to preview and navigate among multiple audio streams (audio sources) using three dimensional (3D) positional audio techniques to position the various sources in an audio field programmatically in such ... 09/28/06 - 20060215841 - Method for treating an electric sound signal A method for generating a sound giving a sensation of depth by applying, after extraction, a transfer function quadrille onto electric sound signals on the left and right thereof. The transfer functions simulate the trajectories taken by the sound associated with the electric signal to be processed in order to ... 09/21/06 - 20060210087 - Dynamic decorrelator for audio signals A system and method are described for rendering a left rear surround input signal at a left rear virtual speaker location and rendering a right rear surround input signal at a right rear virtual speaker location. The method includes phase shifting the left rear surround input signal by a first ... 09/07/06 - 20060198527 - Method and apparatus to generate stereo sound for two-channel headphones A method and apparatus to generate a stereo sound for two-channel headphones from a multi-channel audio signal reproduced from a recording medium. The method may include generating a direct sound and reflected sounds by delaying one of a plurality of channel signals using a plurality of different delay coefficients, multiplying ... 08/17/06 - 20060182284 - System and method for processing audio data for narrow geometry speakers In one representative embodiment, one or several mono audio signals and corresponding positional information are processed by respective mixing blocks. The positional information may include azimuth information, elevation information, and range information. For each mono audio signal, a plurality of left and right signals are generated using mixing techniques. The ... 07/20/06 - 20060159276 - Audio system The designation of a localization position is received in accordance with an input position on a dashboard image in a localization-position reception window, and delay times for audio signals supplied to respective speakers are set so that the sound image is localized at the received localization position. The position where ... 07/20/06 - 20060159275 - Loudspeaker apparatus A loudspeaker apparatus has an improved reproduction characteristic of signals of small sound volumes. The loudspeaker apparatus includes a small-signal loudspeaker unit operable to output first signals in the range of a predetermined level or below of the input audio signals, with a characteristic in which the linearity of output ... 07/13/06 - 20060153391 - Set-up method for array-type sound system There is disclosed a method for setting up a Sound Projector such that it is suitable for a variety of functions, including surround sound. The method allows a semi-automatic or automatic set-up to be accomplished whereby the Sound Projector emits test signals and these are received by one or more ... 06/15/06 - 20060126853 - Audio signal processing method and apparatus In case of carrying out a correction process for outputting an inputted audio signal from a speaker having a predetermined input-output characteristic and in a case, as for the predetermined input-output characteristic of the speaker, when characteristic in which linearity of an output level with respect to an input signal ... 06/15/06 - 20060126852 - Method and system for processing a sound field representation A method of processing a sound field representation which can be used to provide a representation which has been modified by at least spatial processing. The method includes: the establishment of an initial representation of the sound field and the establishment of a representation which has been modified by filtering ... 06/08/06 - 20060120533 - Apparatus and method for producing virtual acoustic sound In one embodiment, a sound image is generated by applying first and second copies of a first input audio signal to first and second audio channels, respectively, to generate first and second output audio signals for the sound image. Each output audio signal is generated by (1) applying the corresponding ... 06/01/06 - 20060115090 - Stereo widening network for two loudspeakers The invention relates to a method, a system, a module, an electronic device and to a computer program product for widening a two-channel input. Two audio channels are input and filtered by equalizing said channels. The filtered channels are mixed with their opposite channels in a cross-talk network and output ... 05/25/06 - 20060109986 - Apparatus and method to generate virtual 3d sound using asymmetry and recording medium storing program to perform the method A virtual 3D sound generating apparatus and method, which can be easily applied to portable devices such as headphones and earphones. The method includes delaying a first input signal for a first time corresponding to a distance between a first virtual sound source and the left ear of a virtual ... 05/04/06 - 20060093152 - Audio spatial environment up-mixer An audio spatial environment engine for flexible and scalable up-mixing from an M channel audio system to an N channel audio system, where M and N are integers and N is greater than M, is provided. The input M channel audio is provided to an analysis filter bank which converts ... 04/20/06 - 20060083382 - Method and apparatus for reproducing audio signal An audio signal is supplied to a loudspeaker array to perform wavefront synthesis. A virtual sound source is produced at an infinite distance using wavefront synthesis. A propagation direction of a sound wave emitted from the virtual sound source is changeable. ... 04/20/06 - 20060083381 - Audio processing The present invention relates to audio signal processing such as equalisation and spatial enhancement functions. The present invention provides an audio signal processing circuit arrangement for two audio channels, and which combines spatial enhancement or acoustic mixing (crosstalk) cancelling with graphic equalisation functions. This is achieved with a circuit structure ... 03/16/06 - 20060056639 - Method and apparatus for producing spatialized audio signals A method and apparatus for producing virtual sound sources that are externally perceived and positioned at any orientation in azimuth and elevation from a listener is described. In this system, a set of speakers is mounted in a location near the temple of a listener's head. A head tracking system ... 03/16/06 - 20060056638 - Sound reproduction system, program and data carrier The sound reproduction system comprises a sound production means (101), e.g. a headphone loudspeaker, and an audio processor (105) capable of applying a first head related transfer function (130) to an input audio signal (106) from an audio signal source (110) and capable of delivering an output audio signal (108) ... 03/02/06 - 20060045276 - Stereophonic reproducing method, communication apparatus and computer-readable storage medium A stereophonic sound reproducing method receives audio information and dynamic image information transmitted from a transmitting end and reproduces sound and dynamic image, by generating position information of a sound source of the transmitting end based on the dynamic image information, and reproducing the audio information based on the position ... 03/02/06 - 20060045275 - Method for processing audio data and sound acquisition device implementing this method The invention concerns the processing of audio data. The invention is characterized in that it consists in: (a) encoding signals representing a sound propagated in three-dimensional space and derived from a source located at a first distance (P) from a reference point, to obtain a representation of the sound through ... 03/02/06 - 20060045274 - Generation of a sound signal The present invention relates to a method and a media system of/for generation of at least one output signal (HPL, (HPR) from at least one input signal from a second set of sound signals (M) having a related second set of Head Related Transfer Functions. The media system can be ... 02/02/06 - 20060023889 - Method and apparatus for processing sound signal A method for processing sound signal including an L side enhanced difference signal comprising a sum of a signal being removed low frequency component from L−R signal and an L+R signal, an R side enhanced difference signal comprising a sum of a signal being removed low frequency component from R−L ... 01/12/06 - 20060008091 - Apparatus and method for cross-talk cancellation in a mobile device An apparatus and method for eliminating cross-talk being heard at a listener device in a mobile communication system. The apparatus eliminates cross-talk occurring in a signal output through at least two speakers in a mobile system, and includes a decoder for decoding an input signal, a controller for providing information ... 12/29/05 - 20050286726 - Sound image localization apparatus Multiple independent sound images are formed by integrally performing uncorrelation processing and sound image localization processing on an input audio signal with signal processors that use output functions hl(x) and hr(x) obtained by integrating an uncorrelation function that generate multiple audio signals with low mutual correlation from an input audio ... 12/29/05 - 20050286725 - Pseudo-stereo signal making apparatus To permit listeners to hear pseudo-stereo sounds with significantly reduced unpleasantness, an input signal xo(t) obtained by digitizing a monaural analog input signal S0 and partitioning the resultant digital signal for each one frame of a predetermined period of time is inputted to a sound source separation section. A sound ... 12/29/05 - 20050286724 - Sound image localization apparatus A sound localization apparatus capable of localizing a sound image at a given position, in a simple configuration is provided with: a first signal processor for convoluting an input audio signal with a first impulse response corresponding to a path from a reference sound source position to the listener's left ... 12/22/05 - 20050281408 - Apparatus and method of reproducing a 7.1 channel sound A method and an apparatus to reproduce a 7.1 channel encoded sound through a 5.1 channel speaker system are provided. The apparatus includes a decoder to separate a 7.1 channel audio bitstream into 8 channel audio signals, a signal corrector to correct characteristics of a left channel audio signal, a ... 12/15/05 - 20050276419 - Sound source localization based on binaural signals Techniques are disclosed for sound source localization based on joint learning and evaluation of ITD and ILD representations that are measured in a complementary, correlation-based way using binaural time-frequency spectrums. According to one embodiment, from these measurements and learned representatives, which may, for example, be created by combinations of measurements ... 12/08/05 - 20050271214 - Apparatus and method of reproducing wide stereo sound An apparatus and a method of reproducing a wide stereo sound by widening a stereo sound output by an audio reproducing apparatus using only two closely disposed channel speakers include a widening filtering operation and a direct filtering operation. In the widening filtering operation, virtual sound sources for arbitrary locations ... 12/08/05 - 20050271213 - Apparatus and method of reproducing wide stereo sound An apparatus and a method of reproducing a wide stereo sound by widening a stereo sound output by an audio reproducing apparatus using only two closely disposed channel speakers include a widening filtering operation and a direct filtering operation. In the widening filtering operation, virtual sound sources for arbitrary locations ... 12/08/05 - 20050271212 - Sound source spatialization system The present invention relates to an enhanced-performance sound source spatialization system used in particular to produce a spatialization system compatible with an integrated modular avionics type system. It comprises a filter database comprising a set of head-related transfer functions specific to the listener, a data presentation processor receiving information from ... 12/01/05 - 20050265558 - Method and circuit for enhancement of stereo audio reproduction Some embodiments of the present invention relate to a method and a circuit for processing an audio signal. In accordance with some embodiments of the present invention, there is provided an audio processing circuit including a first signal path, a second signal path and an output adder. The first signal ... 12/01/05 - 20050265557 - Sound image localization apparatus and method and recording medium A sound image localization apparatus for localizing a reproduced sound image at a sound source position convolutes an impulse response through each path from an optional position of localization of a sound source to the left and right ears of the listener into an audio signal to generate an audio ... 11/24/05 - 20050259827 - System and method for 3d sound processing A system for 3D sound processing. The system includes a first processing section including a first left lattice filter and a first right lattice filter, respectively electrically connected to a second left lattice filter and a second right lattice filter, and including two negative couplers, each electrically connected to the ... 11/17/05 - 20050254660 - Cross-talk cancellation Audio cross-talk cancellation by inverse HRTF matrix only for low frequencies; high frequencies rely upon the natural barrier of a listener's head. The low frequency cutoff is determined by a peak in the inverse matrix of the head-related transfer functions. ... 10/20/05 - 20050232432 - Dummy sound generating apparatus and dummy sound generating method and computer product A dummy sound generating apparatus includes a dummy sound information storage unit that stores one or more dummy sounds, and an outer generating unit that generates one of the one or more dummy sounds outside of the vehicle upon reception of a dummy sound generation instruction signal. The dummy sound ... 10/13/05 - 20050226425 - Multi-channel audio surround sound from front located loudspeakers In a loudspeaker system with main and sub-speakers, a modified and inverted left surround signal is added to the signals driving the right main speaker and a modified and inverted right surround signal is added to the signals driving the Left Main Speaker for the purpose of creating more credible ... 10/06/05 - 20050220308 - Apparatus for creating sound image of moving sound source In a sound image creating apparatus, a distance computation section computes intermediate positions of a moving point along a trajectory line from a movement start position to a movement end position, and further computes a variable distance between each of the intermediate positions of the moving point and a fixed ... 09/01/05 - 20050190925 - Sound reproduction apparatus and sound reproduction method A sound reproduction apparatus capable of providing a target sensation of sound localization to a listener by using a standard head-related transfer function is provided. In a microphone amplifying section, only the high frequency components of a left sound pickup signal and a right sound pickup signal, which are input ... 08/04/05 - 20050169482 - Audio spatial environment engine An audio spatial environment engine for converting from an N channel audio system to an M channel audio system, where N is an integer greater than M, is provided. The audio spatial environment engine includes one or more correlators receiving two or more of the N channels of audio data ... 07/28/05 - 20050163322 - Apparatus and method for playing and storing three-dimensional stereo sound in communication terminal Disclosed is a mobile communication terminal supporting a three-dimensional stereo sound effect. The mobile communication terminal has a memory for storing sound data having a three-dimensional stereo sound effect and sound data having no three-dimensional stereo sound effect; a three-dimensional sound generation unit for reading the sound data from the ... 07/21/05 - 20050157883 - Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal The apparatus for constructing a multi-channel output signal using an input signal and parametric side information, the input signal including the first input channel and the second input channel derived from an original multi-channel signal, and the parametric side information describing interrelations between channels of the multi-channel original signal uses ... 06/23/05 - 20050135629 - Apparatus and method for generating three-dimensional stereo sound in a mobile communication system An apparatus and method for generating a three dimensional (3D) stereo sound signal from a received audio signal in a mobile communication system are provided. In the 3D stereo sound generating apparatus, a low-frequency signal extraction portion extracts a low-frequency signal from a received audio signal, a spatiality generator generates ... 06/16/05 - 20050129250 - Virtual assistant and method for providing audible information to a user A virtual assistant is provided which outputs audible information to a user of a data terminal. A method is also provided for presenting audible information of a virtual assistant to the user of a data terminal. At least two electroacoustic converters are driven such that the virtual assistant can be ... 06/16/05 - 20050129249 - Method for improving spatial perception in virtual surround A method for improving the spatial perception of multiple sound channels when reproduced by two loudspeakers, generally front-located with respect to listeners, each channel representing a direction, applies some of the channels, such as sound channels representing directions other than front directions, to the loudspeakers with headphone and crosstalk cancelling ... 06/02/05 - 20050117753 - Sound field reproduction apparatus and sound field space reproduction system A sound field reproduction apparatus generates sound field synthesizing parameters according to a relative positional relationship between the listener and the sound source and performs frequency conversion on sound data according to the relative positional relationship. A convolutional operation is conducted on the sound data that are subjected to the ... ### FreshPatents.com Support |