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"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
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| Application No. | Application Title | Issue Date |
| 20120020502 | SYSTEM AND METHOD FOR IMPROVING HEADPHONE SPATIAL IMPRESSION A headphone system includes a headphone, a sensor, and a processor. The headphone may provide sound from virtual speakers to a listener via a plurality of sound paths that are filtered with a plurality of filters. The sensor may sense an angular velocity of a movement o... | 01/26/2012 |
| 20110299707 | VIRTUAL SPATIAL SOUND SCAPE An apparatus, method and computer program product relating to spatialized audio. There is a set of headphones having an accelerometer and a tilt sensor for tracking the location and orientation of the set of headphones and a computer apparatus which includes a headphone... | 12/08/2011 |
| 20110026745 | DISTRIBUTED SIGNAL PROCESSING OF IMMERSIVE THREE-DIMENSIONAL SOUND FOR AUDIO CONFERENCES Embodiments of the present invention are directed to audio-conference communication systems that enable audio-conference participants to identify which of the participants are speaking. In one embodiment, an audio-communication system comprises at least one communicatio... | 02/03/2011 |
| 20100303266 | SPATIALIZED AUDIO OVER HEADPHONES A spatial element is added to communications, including over telephone conference calls heard through headphones or a stereo speaker setup. Functions are created to modify signals from different callers to create the illusion that the callers are speaking from different... | 12/02/2010 |
| 20100246864 | HEADPHONE IMPROVEMENTS A method of providing an audio signal to a headphone apparatus for a user is disclosed. The method comprises providing a headphone apparatus comprising at least one left speaker for a left ear of a user having a sound path from the left speaker to the left ear canal and... | 09/30/2010 |
| 20100215164 | METHODS AND ARRANGEMENTS FOR GROUP SOUND TELECOMMUNICATION A method of audio scene management in a teleconference or other group sound telecommunication is presented, in which teleconference at least a first transmitting party, a second transmitting party and a receiving party participates. The method comprises receiving of sig... | 08/26/2010 |
| 20100215199 | METHOD FOR HEADPHONE REPRODUCTION, A HEADPHONE REPRODUCTION SYSTEM, A COMPUTER PROGRAM PRODUCT A method for headphone reproduction of at least two input channel signals is proposed. Said method comprises for each pair of input channel signals from said at least two input channel signals the following steps. First, a common component, an estimated desired position... | 08/26/2010 |
| 20100166238 | Surround sound virtualization apparatus and method A surround sound virtualization apparatus and method. The surround sound virtualization apparatus may include an audio decoder to perform head-related transfer function (HRTF) filtering, and a time delay unit to provide a time delay to a plurality of output signals of t... | 07/01/2010 |
| 20100053210 | SOUND PROCESSING APPARATUS, SOUND IMAGE LOCALIZED POSITION ADJUSTMENT METHOD, VIDEO PROCESSING APPARATUS, AND VIDEO PROCESSING METHOD A sound processing apparatus includes: sound image localization processing means for performing a sound image localization process on a sound signal to be reproduced; a speaker section placeable over an ear of a user and supplied with the sound signal to emit sound in a... | 03/04/2010 |
| 20100054508 | MULTIPLE-CHANNEL DIGITAL SOUND FIELD WIRELESS EARPHONE DEVICE A digital wireless earphone device with stereo or multiple-channel sound effect automatic detection and switching functions is provided. The multiple-channel digital wireless earphone device uses a signal processing and transmitting device to decode multiple-channel sig... | 03/04/2010 |
| 20100034404 | VIRTUAL REALITY SOUND FOR ADVANCED MULTI-MEDIA APPLICATIONS The method and apparatus described herein generates realistic audio for a virtual reality simulation based on the position (location and orientation) of a participant's head. The audio may be generated based on independent and dependent audio profiles. The independent a... | 02/11/2010 |
| 20090252356 | SPATIAL AUDIO ANALYSIS AND SYNTHESIS FOR BINAURAL REPRODUCTION AND FORMAT CONVERSION A frequency-domain method for format conversion or reproduction of 2-channel or multi-channel audio signals such as recordings is described. The reproduction is based on spatial analysis of directional cues in the input audio signal and conversion of these cues into aud... | 10/08/2009 |
| 20090052703 | System and Method Tracking the Position of a Listener and Transmitting Binaural Audio Data to the Listener A binaural technology method includes: determining positions related to position of both ears of a listener, receiving a wireless RF signal including binaural audio data is received, and presenting the binaural audio data to the listener By determining ear positions of ... | 02/26/2009 |
| 20090034766 | MIXING DEVICE, METHOD AND PROGRAM In a situation where a plurality of virtual sound sources are fixedly located, a mixing system allows a listener to increase or decrease the sound volumes of the virtual sound sources with a simple operation. Directional angle difference detection means 24 detect... | 02/05/2009 |
| 20080310658 | Headphone for Sound-Source Compensation and Sound-Image Positioning and Recovery A headphone for sound-source compensation and sound-image positioning and recovery is provided, including a left speaker device for playing to a left ear of a user left channel sound and right channel sound originating from at least a sound signal, and a right speaker d... | 12/18/2008 |
| 20080205676 | Phase-Amplitude Matrixed Surround Decoder A frequency domain method for phase-amplitude matrixed surround decoding of 2-channel stereo recordings and soundtracks, based on spatial analysis of 2-D or 3-D directional cues in the recording and re-synthesis of these cues for reproduction on any headphone or loudspe... | 08/28/2008 |
| 20080170730 | TRACKING SYSTEM USING AUDIO SIGNALS BELOW THRESHOLD A tracking system may determine the orientation or position of a movable object. The tracking system includes a signal generator that generates a non-audible detection signal in an audible frequency range. A transmitting device transmits the detection signal to a detect... | 07/17/2008 |
| 20080056503 | Head Related Transfer Functions for Panned Stereo Audio Content A method to process audio signals, an apparatus accepting audio signals, a carrier medium that carried instructions for a processor to implement the method to process audio signals, and a carrier medium carrying filter data to implement a filter of audio signals. The me... | 03/06/2008 |
| 20080056517 | DYNAMIC BINAURAL SOUND CAPTURE AND REPRODUCTION IN FOCUED OR FRONTAL APPLICATIONS A new approach to tracking head motion for headphone-based sound is described. Called MTB2.0 for “Motion-Tracked Binaural with 2 Channels”, the method may be used for any 2-channel binaural signals without any increase in the bandwidth requirement. MTB2.0 provides a... | 03/06/2008 |
| 20080008324 | AUDIO ENHANCEMENT MODULE FOR PORTABLE MEDIA PLAYER An audio or video enhancement module incorporates advanced audio enhancement effects. These advanced effects cover a wide range including but not limited to 3D audio spatialization (virtualization) and transient enhancement. The device is configured for receiving an aud... | 01/10/2008 |
| 20080002844 | Sound panner superimposed on a timeline Techniques described herein allow a user to create and modify a sound design in a user interface. For example, a user imports a sound file into the user interface, where the sound file is displayed graphically along a timeline. The user can then insert multiple control ... | 01/03/2008 |
| 20080002845 | Auditory Head Outside Lateralization Apparatus and Auditory Head Outside Lateralization Method The capacity of storage means required for generating virtual reflected sounds of left and right channels is saved. An auditory head outside lateralization apparatus has auditory lateralization means 102, 103 for processing input audio signals of left and right c... | 01/03/2008 |
| 20070297625 | 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 housing th... | 12/27/2007 |
| 20070269063 | SPATIAL AUDIO CODING BASED ON UNIVERSAL SPATIAL CUES The present invention provides a frequency-domain spatial audio coding framework based on the perceived spatial audio scene rather than on the channel content. In one embodiment, time-frequency spatial direction vectors are used as cues to describe the input audio scene... | 11/22/2007 |
| 20070269062 | DEVICE AND METHOD FOR DRIVING A SOUND SYSTEM AND SOUND SYSTEM A driving device for a sound system by loudspeaker signals, wherein the sound system has a wave field synthesis loudspeaker array and one or several supply loudspeakers arranged separate from the wave field synthesis array includes an audio input for receiving at least ... | 11/22/2007 |
| 20070223751 | 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 signals ... | 09/27/2007 |
| 20070165890 | Sound image localization device A sound image localization device (10) comprising: band division means (11) for dividing an inputted acoustic signal to a high-band acoustic signal and a low-band acoustic signal; a first filter (12) and a second filter (13) for localizing th... | 07/19/2007 |
| 20070160241 | DETERMINATION OF THE ADEQUATE MEASUREMENT WINDOW FOR SOUND SOURCE LOCALIZATION IN ECHOIC ENVIRONMENTS A method for sound source localization comprises the steps of computing an envelope of a signal; performing a non-linear, onset preserving smoothing of the envelope; and evaluating cues for sound source localization, using the points where the smoothing changes from its... | 07/12/2007 |
| 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 li... | 07/05/2007 |
| 20070121958 | Methods and apparatuses for recording and playing back audio signals Methods and apparatuses for recreating audio signals to sound as though the signals had been recorded in a different acoustic environment are provided. The methods and apparatus may include one or more inputs that receive an audio signal and an input that receives a sel... | 05/31/2007 |
| 20070104331 | Multi-channel audio system and method for generating virtual speaker sound To realize sound output so that a listener does not feel unnaturalness, an audio signal for a center speaker is multiplied by a transfer function for a left speaker and a transfer function for a right speaker, respectively, and an audio component for a left center speak... | 05/10/2007 |
| 20070009120 | Dynamic binaural sound capture and reproduction in focused or frontal applications A new approach to capturing and reproducing either live or recorded three-dimensional sound is described. Called MTB2.5 for “Motion-Tracked Binaural 2.5,” the method employs six real or simulated microphones, a head tracker, and special signal-processing procedures ... | 01/11/2007 |
| 20060251276 | Generating 3D audio using a regularized HRTF/HRIR filter 3D sound is generated using an improved HRTF modeling technique for synthesizing HRTFs with varying degrees of smoothness and generalization. A plurality N of spatial characteristic function sets are regularized or smoothed before combination with corresponding Eigen fi... | 11/09/2006 |
| 20060147068 | Audio reproduction apparatus, feedback system and method The audio reproduction apparatus comprises a cost input for inputting a mathematical cost derived from a measurement, which measurement is user-influenceable and a conditioning unit, capable of delivering an output audio signal in dependence of the mathematical cost, ch... | 07/06/2006 |
| 20060133628 | System and method for forming and rendering 3D MIDI messages MIDI-generated audio streams or other input streams of audio events are perceptually associated with specific locations in 3D space with respect to the listener. A conventional pan parameter is redefined so that it no longer specifies the relative balance between the au... | 06/22/2006 |
| 20060126878 | Audio playback method and apparatus using line array speaker unit A multi-channel audio system is constituted using at least one line array speaker unit, in which plural speakers are arrayed in line, wherein the same audio signal is supplied with a prescribed delay time to each of the speakers, thus forming plural sound beams. The plu... | 06/15/2006 |
| 20060115091 | Apparatus and method of processing multi-channel audio input signals to produce at least two channel output signals therefrom, and computer readable medium containing executable code to perform the method An apparatus to process m-channel audio input signals to produce n channel output signals, and n is less than m. This apparatus includes a first filter unit to reduce a correlation between at least two channel audio input signals among the m-channel audio input signals,... | 06/01/2006 |
| 20060109988 | System and method for generating sound events A system and method for recording and reproducing three-dimensional sound events using a discretized, integrated macro-micro sound volume for reproducing a 3D acoustical matrix that reproduces sound including natural propagation and reverberation. The system and method ... | 05/25/2006 |
| 20060109992 | Device for level correction in a wave field synthesis system For a level correction in a wave field synthesis system having a wave field synthesis module and an array of loudspeakers for providing sound to a presentation region, a correction value which is based on a set amplitude state in a presentation region is determined, the... | 05/25/2006 |
| 20060098830 | 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 virtual... | 05/11/2006 |
