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| Number | Title | Issue Date |
| 8098856 | Wireless communications devices with three dimensional audio systems Mobile terminals having three dimensional audio capabilities for making sound appear to originate from any location within a three dimensional space and to facilitate navigational movement among displayed information are provided. A mobile terminal includes a housin... | 01/17/2012 |
| 8085958 | Virtualizer sweet spot expansion Audio loudspeaker virtualizers and cross-talk cancellers and methods use a combination of interaural intensity difference and interaural time difference to define virtualizing filters. This allows enlargement of a listener's sweet spot based on psychoacoustic effect... | 12/27/2011 |
| 8077888 | Positioning audio output for users surrounding an interactive display surface For use with an interactive display system having a generally horizontal interactive display surface, four speakers that are disposed at spaced-apart locations within a housing of the system so that a sound field produced by one or more energized speakers is directe... | 12/13/2011 |
| 8064624 | Method and apparatus for generating a stereo signal with enhanced perceptual quality A stereo signal with enhanced perceptual quality using a mid-signal and a side-signal, can be generated, when a enhanced side signal is created prior to the upmix of the stereo signal. A decorrelated representation of at least a portion of the sum signal and/or a de... | 11/22/2011 |
| 8050434 | Multi-channel audio enhancement system A method for processing audio signals can include receiving left and right front audio signals, where the left and right front audio signals including information about front spatial position of sound sources relative to a listener. The method can also include recei... | 11/01/2011 |
| 8019102 | Acoustic adjustment device and acoustic adjustment method The present invention provides an audio control device and an audio control method capable of promptly controlling a desired sound source, by simply selecting the sound where the sound state should be adjusted among multiple sounds, without displaying the sound stat... | 09/13/2011 |
| 8005244 | Apparatus for implementing 3-dimensional virtual sound and method thereof An apparatus for implementing a 3-dimensional virtual sound and method thereof are disclosed, in which computational and storage complexity are reduced, in which system stability is secured, and by which the 3-dimensional virtual sound can be implemented in such a m... | 08/23/2011 |
| 8005245 | Sound image localization apparatus It is an object of the present invention to provide a sound image localization apparatus which can localize a sound image with ease correctly for many listeners. Herein disclosed is a sound image localization apparatus, in which a directional band information... | 08/23/2011 |
| 8000486 | Headphones for 3D sound Headsets (20, 50, 60, 71) provide surround sound and full 3 dimensional effects to a user to simulate the effects of direction and sound source. Advantages include: surround sound effect without the limitations of Head-Related Transfer Functions, and pinna ef... | 08/16/2011 |
| 7995778 | Acoustic transducer array signal processing A set of filters is configured to distribute input signals representing a single perceptual axis to first and second physically separate arrays of loudspeakers comprising at least first and second transducers, such that the arrays of loudspeakers will create an arra... | 08/09/2011 |
| 7978866 | Acoustics correcting apparatus An acoustics correcting apparatus includes: a measurement signal supplying section; first and second collecting sections; a first distance calculating section; a second distance calculating section; a position information calculating section; an acoustics measuring ... | 07/12/2011 |
| 7953236 | 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 ... | 05/31/2011 |
| 7860260 | Method, apparatus, and computer readable medium to reproduce a 2-channel virtual sound based on a listener position A method of reproducing a virtual sound and an apparatus to reproduce a 2-channel virtual sound from a 5.1 channel (or 7.1 channel or more) sound using a two-channel speaker system. The method includes: generating a 2-channel virtual sound from a multi-channel sound... | 12/28/2010 |
| 7856110 | Audio processor 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 i... | 12/21/2010 |
| 7835535 | 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. ... | 11/16/2010 |
| 7720241 | 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 convolves an impulse response through each path from an optimal position of localization of a sound source to the left and right ears of the listener into an audi... | 05/18/2010 |
| 7706555 | Stereophonic device for headphones and audio signal processing program A stereophonic device for headphones to which a monophonic signal or a stereophonic signal is inputted comprises an uncorrelating processing unit for reducing the correlation between two signals obtained by dividing the inputted monophonic signal into two channels o... | 04/27/2010 |
| 7688989 | Method and system for processing sound signals for a surround left channel and a surround right channel The invention describes a method for processing sound signals for a surround left channel (SL) and a surround right channel (SR). Thereby, a continually varying delay between the resulting signals of the surround right (SR) and surro... | 03/30/2010 |
| 7684578 | Wave field synthesis apparatus and method of driving an array of loudspeakers In a wave field synthesis apparatus for driving an array of loudspeakers with drive signals, the loudspeakers being arranged at different defined positions, a drive signal for a loudspeaker being based on an audio signal associated with a virtual source having a vir... | 03/23/2010 |
| 7680290 | Sound reproducing apparatus and method for providing virtual sound source A sound reproducing apparatus for providing an optimal virtual sound source and a sound reproducing method therefor are provided. The sound reproducing apparatus includes a virtual sound signal generation unit for generating more than one virtual sound signal corres... | 03/16/2010 |
| 7561707 | Hearing aid system The user (2) of a binaural hearing aid or communication system (1A, 1B) is to be provided with an easier assignment or identification of acoustic signals generated in the system for keeping a user (2) informed about current settings or st... | 07/14/2009 |
| 7539319 | Utilization of filtering effects in stereo headphone devices to enhance spatialization of source around a listener An apparatus for creating, utilizing a pair of oppositely opposed headphone speakers, the sensation of a sound source being spatially distant from the area between the pair of headphones, the apparatus comprising: (a) a series of audio inputs representing audio sign... | 05/26/2009 |
| 7536021 | Utilization of filtering effects in stereo headphone devices to enhance spatialization of source around a listener An apparatus for creating, utilizing a pair of oppositely opposed headphone speakers, the sensation of a sound source being spatially distant from the area between the pair of headphones, the apparatus comprising: (a) a series of audio inputs representing audio sign... | 05/19/2009 |
| 7480386 | Audio information transforming method, video/audio format, encoder, audio information transforming program, and audio information transforming device The present invention provides an audio information transforming method, a program product, a device, an encoder, and an video/audio format utilized therein, which are capable of providing an audio information by adjusting the Doppler effect caused by movement of th... | 01/20/2009 |
| 7454026 | Audio image signal processing and reproduction method and apparatus with head angle detection Input digital sound signals are subjected to filtering for convolution of respective impulse responses, and the resulting signals are supplied to time delay setting circuits. In each of the time delay setting circuits, output signals from two adjacent stages of the ... | 11/18/2008 |
| 7440578 | Vehicle-mounted three dimensional sound field reproducing silencing unit A vehicle-mounted three dimensional sound signal reproducing•silencing unit includes at least two speakers disposed for each of seats to be occupied by listeners so as to generate a three dimensional sound field space in a region inclusive of left and right extern... | 10/21/2008 |
| 7424121 | Audio signal processing method and audio signal processing apparatus An audio signal processing method that performs virtual acoustic image localization processing for sound source signals having at least one type of information among position information, movement information, and localization information based on this information t... | 09/09/2008 |
| 7415123 | 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... | 08/19/2008 |
| 7397923 | 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 sh... | 07/08/2008 |
| 7391877 | Spatial processor for enhanced performance in multi-talker speech displays Optimal head related transfer function spatial configurations designed to maximize speech intelligibility in multi-talker speech displays by spatially separating competing speech channels combined with a method of normalizing the relative levels of the different tal... | 06/24/2008 |
| 7386139 | Sound image control system A sound image control system which is able to concurrently perform sound image localization control for two persons is provided. The sound image control system controls a sound image localization position by reproducing an audio signal from a plurality of loudspeake... | 06/10/2008 |
| 7386140 | Audio information transforming method, audio information transforming program, and audio information transforming device The present invention provides an audio information transforming device, an audio information transforming method, and an audio information transforming program, which are capable changing a listening point freely only by one audio stream and also achieving multiple... | 06/10/2008 |
| 7382886 | Efficient and scalable parametric stereo coding for low bitrate audio coding applications The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These improvements are accomplished by extraction of stereo-image describing parameters at the encoder side, whic... | 06/03/2008 |
| 7382885 | Multi-channel audio reproduction apparatus and method for loudspeaker sound reproduction using position adjustable virtual sound images A multi-channel audio reproduction apparatus and method for loudspeaker reproduction using virtual sound images whose positions can be adjusted is provided. The multi-channel audio reproduction apparatus includes a virtual sound image forming unit for compensating f... | 06/03/2008 |
| 7373123 | Multiple tuners in a single radio receiver A radio receiver having multiple AM/FM tuners. A first tuner and a second tuner may be connected with an antenna for generating a first and second composite audio output signal. A dual input digital signal processor may be connected with the first tuner and the seco... | 05/13/2008 |
| 7369668 | Method and system for processing directed sound in an acoustic virtual environment An acoustic virtual environment is processed in an electronic device. The acoustic virtual environment comprises at least one sound source (300). In order to model the manner in which the sound is directed, a direction dependent filtering arrangement (306,... | 05/06/2008 |
| 7369667 | Acoustic image localization signal processing device An acoustic image localization signal processing device capable of localizing an acoustic image in an arbitrary direction includes: a sound source data storage unit that stores second sound source data obtained by subjecting first sound source data to signal preproc... | 05/06/2008 |
| 7346172 | Auditory alert systems with enhanced detectability Methods and systems for distinguishing an auditory alert signal from a background of one or more non-alert signals. In a first embodiment, a prefix signal, associated with an existing alert signal, is provided that has a signal component in each of three or more sel... | 03/18/2008 |
| 7336792 | Virtual acoustic image localization processing device, virtual acoustic image localization processing method, and recording media An acoustic image localization processing device that can localize an acoustic image of reproduced sound in an arbitrary position according to the circumstances of reproduction. To accomplish this, an acoustic image localization processing device includes a decoder ... | 02/26/2008 |
| 7333622 | Dynamic binaural sound capture and reproduction A new approach to capturing and reproducing either live or recorded three-dimensional sound is described. Called MTB for “Motion-Tracked Binaural,” the method employs several microphones, a head tracker, and special signal-processing procedures to combine the si... | 02/19/2008 |
