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7027600 Audio signal processing device  
The audio signal processing device of the present invention arranges objects in a virtual three-dimensional space and generates audio signals by performing, at a prescribed listening position,...
7024002 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems  
Sound reproduction and reinforcement systems and methods are presented herein for spatially enhancing stereo images typically used such performances as those involving music. The embodiments seek...
7012630 Spatial sound conference system and apparatus  
The spatial sound conference system enables participants in a teleconference to distinguish between speakers even during periods of interruption and overtalk, identify speakers based on spatial...
7006636 Coherence-based audio coding and synthesis  
An auditory scene is synthesized from a mono audio signal by modifying, for each critical band, an auditory scene parameter (e.g., an inter-aural level difference (ILD) and/or an inter-aural time...
7003119 Matrix surround decoder/virtualizer  
The inventive mechanism uses several sub-systems to generate outputs from the stereo input signal. A first sub-system synthesizes the phantom center output, which places the monaural center image...
6999590 Stereo sound circuit device for providing three-dimensional surrounding effect  
A stereo sound circuit device for providing three-dimensional surrounding effect has a difference circuit for acquiring difference signal of a left channel sound and a right channel sound. The...
6996244 Estimation of head-related transfer functions for spatial sound representative  
The estimation of an HRTF for a given individual is accomplished by means of a coupled model, which identifies the dependencies between one or more images of readily observable characteristics of...
6996239 System for transitioning from stereo to simulated surround sound  
This invention provides a system capable of transitioning from surround sound effect to stereo sound effect, and then to a monophonic sound effect using front speakers. A user may control the...
6990210 System for headphone-like rear channel speaker and the method of the same  
A method of performing sound effect comprising providing a headphone-like or earphone-like device with rear speakers carried therein, wherein the headphone-like or earphone-like device includes an...
6983054 Means for compensating rear sound effect  
Means for compensating rear sound effect, comprising a headphone-like or an earphone-like device with rear speakers carried therein, the headphone-like or earphone-like device including an opening...
6973193 Fan and compressor noise attenuation  
An exciting sound wave generator is positioned within a nacelle of a jet engine at its inlet to generate an exciting sound wave having a primary frequency generally different from a frequency of...
6970569 Audio processing apparatus and audio reproducing method  
An audio processing apparatus that includes a first filter for converting n-channel (n≧1, positive integer) audio signals input from at least one signal source into two-channel signals, a pair of...
6961433 Stereophonic sound field reproducing apparatus  
In the stereophonic sound field reproducing apparatus for reproducing a stereophonic sound field, at the time of using, a signal processing unit ( 4 ) executes a process on signals to...
6956954 Surround-sound processing system  
Surround-effect, providing no unnatural feeling to the listeners who sit next to each other under side-by-side basis through virtual sound sources, is realized. A surround left channel signal SL...
6956955 Speech-based auditory distance display  
Device and method for controlling the perceived distances of sound sources by manipulating vocal effort and presentation level of a synthetic voice. Key components are a means of producing speech...
6950524 Optimal source distribution  
A sound reproduction system has pairs of sound emitters that subtend different angles Θ, the span angle, at the listener position. The pairs of sound emitters are arranged to be excited by...
6947564 Stereophonic spatial expansion circuit with tonal compensation and active matrixing  
In a stereophonic expansion circuit, the (L+R) sum signal is spectrally modified by increasing the bass and treble frequencies relative to the midrange so as to compensate for a midrange frequency...
6947569 Audio signal processing device, interface circuit device for angular velocity sensor and signal processing device  
An audio signal processing device to enable accurate calculation of angles and displacements and to enable reduction of circuit scales includes a digital signal processing circuit ( 31 ) that...
6928168 Transparent stereo widening algorithm for loudspeakers  
A stereo widening processing algorithm is used to provide a system and method for giving a listener an impression that a stereo audio signal having left and right channels is emanating from a...
6909787 Method and related apparatus for stereo vocal cancellation  
Method and related apparatus for canceling vocal portions containing in two signals of two stereo channels and providing two corresponding output signals. The method includes: generating a mono...
6904152 Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions  
Techniques of making a recording of or transmitting a sound field from either multiple monaural or directional sound signals that reproduce through multiple discrete loud speakers a sound field...
6862356 Audio device  
A dummy listener and right and left speakers 13 and 14 are disposed in an anechoic room as a model of the layout of those a car cabin 15 or the like. Transfer functions ALL, ALR, ARL and ARR...
6853869 Method and apparatus for generating surround-sound data  
A surround-sound circuit has a delay time memory ( 31 ) for storing a digital audio input signal IN, and outputs the stored input signal as a surround-sound signal a predetermined time later. The...
6829359 Multispeaker sound imaging system  
A sound imaging system, which by processing left and right stereo channel audio signals of a conventional two channel stereo system, distributes signals to a speaker array of a number of speakers...
6829361 Headphones with integrated microphones  
A sound reproduction system includes headphones ( 11 ). The headphones include structures for generating sound ( 4, 5 ) and microphones ( 6, 7 ). Further, the system includes filters ( 8,9 ) for...
6823310 Audio signal processing device and audio signal high-rate reproduction method used for audio visual equipment  
An audio decoding apparatus is provided for receiving a bit stream on a block-by-block basis, decoding one block of the bit stream to form decoded audio data for a plurality of channels, and...
6816597 Pseudo stereophonic device  
In a pseudo stereophonic device for producing a pseudo stereophonic signal from a monophonic signal, there are provided m delay units connected in series and gradually delaying an input signal S, m...
6813360 Audio conferencing with three-dimensional audio encoding  
An apparatus and method for assigning each conferee to a conference a three-dimensional position with respect to a central listening position and the other conferees. Each conferees audio stream is...
6804358 Sound image localizing processor  
A sound image localization processor comprises a first processing circuit 10 receiving a sound left signal and comprising a first delay unit 11 and a first sound image localization filter 12 ,...
6801627 Method for localization of an acoustic image out of man's head in hearing a reproduced sound via a headphone  
The disclosure relates to localization of an acoustic image out of the head in hearing a reproduced sound via headphone, and includes the steps of: with audio signals S 1 -S 11 of left, right...
6795556 Method of modifying one or more original head related transfer functions  
Original head-related transfer functions (HRTFs) are modified for a non-standard dimensioned head. The HRTF includes a near-ear response function, a far-ear response function, and an inter-aural...
6795560 Digital mixer and digital mixing method  
To mix signals of a plurality of input channels, first buses and second buses are provided. It is possible that, even when a user has selected a desired first surround mode and a desired effect to...
6771778 Method and signal processing device for converting stereo signals for headphone listening  
The invention relates to a method for converting signals in two-channel stereo format to become suitable to be played back using headphones. The invention also relates to a signal processing device...
6771779 System, apparatus, and method for improving speech quality in multi-party devices  
A system and method is disclosed to remove cross talk terms from speech signals in a multi-party conference system using an estimator to first estimate the respective cross talk terms for each of...
6768798 Method of customizing HRTF to improve the audio experience through a series of test sounds  
A method of customizing the HRTF for each tested individual for providing all tested individuals an optimum audio experience by providing convincing and realistic three-dimensional sounds....
6766028 Headtracked processing for headtracked playback of audio signals  
A method of simulating a spatial sound environment to a listener over headphones is disclosed comprising inputting a series of sound signals having spatial components; determining a current...
6763115 Processing method for localization of acoustic image for audio signals for the left and right ears  
In views of a disadvantage that in a conventional method for localization of sound image in stereo listening, the amount of software is increased and the scale of hardware is enlarged, this...
6760447 Sound recording and reproduction systems  
A method of recording sound for reproduction by a plurality of loudspeakers, or for processing sound for reproduction by a plurality of loudspeakers, is described in which some of the reproduced...
6754350 Surround reproducing circuit  
A surround reproducing circuit includes a first adder for generating a difference signal of an L signal and an R signal which are inputted, a low-pass filter connected to an output side of the...
6744487 Producing a soundtrack for moving picture sequences  
Apparatus for dubbing a film from a source language to a target language includes a replay device ( 1 ) which replays a film and a control unit ( 6 ) which generates an acoustic model of the scene....
6738479 Method of audio signal processing for a loudspeaker located close to an ear  
A method of audio signal processing for a loudspeaker located close to an ear in use, the method consisting of or including:- creating one or more derived signals from an original monophonic input...
6735314 Expanded stereophonic circuit with tonal compensation  
A stereophonic processing system provided with spatial expansion of the stereophonic sound so that a pair of spaced-apart loudspeakers will acoustically appear to be spaced apart further then they...
6731759 Audio signal reproduction device  
An acoustic signal reproduction device includes a reproduction speaker and a signal processing section for generating an acoustic signal for causing a listener to recognize a reference speaker. The...
6721425 Sound signal mixing  
A method of down mixing a plurality of signals including at least a left surround signal, a right surround signal, a left signal and a right signal into a stereophonic pair that is a left...
6721426 Speaker device  
A signal processor with a small circuit size, a simplified arrangement, and reduced cost and which can generate the same sound field as that in a case of listening to a reproduced sound using...
6718042 Dithered binaural system  
A method for creating a multichannel audio signal that provides the impression of spatial sound is disclosed, the method comprising providing an expected multichannel audio output signal having...
6711266 Surround sound channel encoding and decoding  
Surround sound encoding and decoding includes apparatus and techniques for encoding a number of major channels of a surround sound signal, such as left, right, center, left surround and right...
6711265 Centralizing of a spatially expanded stereophonic audio image  
In a stereophonic system having sum and difference signals with expanded spatial imaging, localization of center audio materials more towards the center is accomplished by equalization of the (L+R)...
6707918 Formulation of complex room impulse responses from 3-D audio information  
A method for the creation of acoustic impulse responses for utilization in rendering to an array of speakers comprising the steps of measuring a room response function; extracting a series of...
6700980 Method and device for synthesizing a virtual sound source  
The invention relates to a method for synthesizing a virtual sound source in a system ( 40 ) which comprises at least a right and a left channel for transmitting a stereo signal and in which the...
Matches 101 - 150 out of 399 < 1 2 3 4 5 6 7 8 >