Matches 51 - 100 out of 417 < 1 2 3 4 5 6 7 8 9 >


Match Document Document Title
8346565 Apparatus and method for generating an ambient signal from an audio signal, apparatus and method for deriving a multi-channel audio signal from an audio signal and computer program  
An apparatus for generating an ambient signal from an audio signal includes a compressor for lossy compression of a representation of the audio signal so as to obtain a compressed representation...
8345887 Computationally efficient synthetic reverberation  
A digital audio signal processor uses a matrix transform to produce a multi-channel synthetic reverberation signal based on variably-delayed versions of an input signal. The matrix transform...
8340303 Method and apparatus to generate spatial stereo sound  
A method of processing a 2-channel stereo sound signal into a spatial stereo sound includes generating stereo signals of first and second channels from a first input channel signal and a second...
8340304 Method and apparatus to generate spatial sound  
A spatial sound generation method and apparatus by which reflected sounds of an input sound signal are generated and by using the reflected sounds, a spatial sound is generated. The method...
8335331 Multichannel sound rendering via virtualization in a stereo loudspeaker system  
A speaker virtualization system provides virtual surround sound using a pair of physical loudspeakers. A multiple surround audio channels input is processed using a combination of head related...
8331575 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...
8325933 Device and method for generating and processing sound effects in spatial sound-reproduction systems by means of a graphic user interface  
The present invention is based on the finding that a sound-reproduction system, which can generate a spatial sound impression in a reproduction environment, can be efficiently and intuitively...
8315403 Method for controlling directivity of loudspeaker apparatus and audio reproduction apparatus  
To provide an audio reproduction apparatus in which a general user inputs simple and easy settings so that audio beams of respective channels can be set. When an array speaker is installed in a...
8300841 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...
8300838 Method and apparatus for determining a modeled room impulse response  
A method of modeling a room impulse response according to an embodiment of the invention includes receiving a sound pressure signal that is obtained by a microphone when an impulse-type sound...
8295498 Apparatus and method for producing 3D audio in systems with closely spaced speakers  
An audio processing circuit includes a crosstalk cancellation circuit that is advantageously simplified for use in audio devices that have closely-spaced speakers. In particular, crosstalk...
8294604 Test system and method for analog-to-digital converter  
Test system and method for analog-to-digital converter (ADC) based on a loopback architecture are provided to test an M-bit ADC. In the invention, an N-bit digital-to-analog converter (DAC)...
8290169 Time shifted harmonics generator  
An electrical signal derived from an audio source is passed through an amplifier and is then divided into two discrete signal paths. The signal traveling along the first path travels through a...
8284961 Signal processing device  
A signal processing device includes a generation unit that generates a second signal from a first signal that is obtained by down mixing two signals; a mixing coefficient determination unit that...
8275138 Dynamic acoustic rendering  
A method of acoustically rendering a virtual environment is described. The method includes receiving a subset of polygons derived for an acoustic display from a set of polygons generated for a...
8265283 Acoustic processing device and acoustic processing method  
An acoustic processing device, includes an inputting section which receives a first audio signal and a second audio signal, a first input signal amplifying section which amplifies the first audio...
8254588 System and method for providing step size control for subband affine projection filters for echo cancellation applications  
A system and method for Acoustic Echo Cancellation. The system and method include a subband affine projection filter and a variable step size controller configured to cancel an estimated echo from...
8249264 Method and system for automatically generating world environment reverberation from a game geometry  
Reverberation parameters for one or more positions of interest are derived from graphics data used for displaying a computer-generated environment. For each position of interest for which...
8249883 Channel extension coding for multi-channel source  
A multi-channel audio decoder reconstructs multi-channel audio of more than two physical channels from a reduced set of coded channels based on correlation parameters that specify a full power...
8218780 Methods and systems for blind dereverberation  
Various embodiments of the present invention are directed to methods for dereverberation of audio generated in a room. In one aspect, a method for dereverberating reverberant digital signals...
8213622 Binaural sound localization using a formant-type cascade of resonators and anti-resonators  
This invention is a method for binaural localization using a cascade of resonators and anti-resonators to implement an HRTF (head-related transfer function). The spectrum of the cascade reproduces...
8214179 Acoustic modeling apparatus and method using accelerated beam tracing techniques  
An acoustic modeling system and an acoustic modeling method use beam tracing techniques that accelerate computation of significant acoustic reverberation paths in a distributed virtual...
8208648 Sound field reproducing device and sound field reproducing method  
The sound field reproducing apparatus includes: a signal obtaining unit which obtains input audio signals of plural channels; an effect adding unit which gives an effect on an output to a sound...
8204240 Apparatus and method for artificial reverberation  
An apparatus and method for artificial reverberation having one or more input summing nodes receiving an input signal and which each feed a first series of delay elements and the output of which...
8204614 Audio processing apparatus and audio processing method  
A user selects a plurality of pieces of music data desired to be reproduced concurrently, at an input unit of an audio processing apparatus, from music data stored in a storage device. A...
8199921 Sound field controlling device  
A sound field controlling device for supplying audio signals to a plurality of speakers provided in a space to form a sound field in the space, includes a measuring unit which measures levels of...
8199922 Ethernet isolator for microphonics security and method thereof  
A system and method for providing microphonic isolation on a transmission line. The transmission line has a first part and a second part. The first part of transmission line carries a data signal...
8184817 Multi-channel acoustic signal processing device  
Provided is a multi-channel acoustic signal processing device by which loads of arithmetic operations are reduced. The multi-channel acoustic signal processing device includes: a decorrelated...
8160262 Method for dereverberation of an acoustic signal  
A method is provided for estimating a reverberation signal component of an acoustic signal detected by a microphone where the acoustic signal is comprised of a direct sound component and a...
8155324 Voice processor, voice processing method, program, and information recording medium  
A calculating unit (201) arranges a three-dimensional spatial body containing a listening point within a virtual space in a voice processor (200). The three-dimensional spatial body is constituted...
8155343 Engine sound processing system  
Microphones are provided at an air inlet of the engine and a vehicle-cabin-side wall surface of an engine room, and engine sounds are picked up. The engine sound is processed by a signal...
8150051 System and method for sound system simulation  
A sound system design/simulation system provides a more realistic simulation of an existing venue by matching a measured reverberation characteristic of the existing venue and adjusting one or...
8145499 Generation of decorrelated signals  
In a case of transient audio input signals, in a multi-channel audio reconstruction, uncorrelated output signals are generated from an audio input signal in that the audio input signal is mixed...
8126156 Calibrating at least one system microphone  
A system including at least one system microphone, a processor connected to computer readable memory and the at least one system microphone, a measurement microphone connected to the processor, at...
8116468 Stereophonic sound reproduction device  
A stereophonic sound reproduction device has a sound amplifying device that amplifies multi channel surround sound signals for respective channels and outputs the multi channel surround sound...
8116470 Impulse response processing apparatus and reverberation imparting apparatus  
An impulse response processing apparatus is composed of a waveform divider, a time adjuster, an interpolation processor and a waveform synthesizer. The waveform divider divides an impulse response...
8116469 Headphone surround using artificial reverberation  
A surround experience for headphones can be created using various techniques and tools. The described techniques and tools can be applied separately or in combination. For example, a surround...
8107632 Digital signal processing apparatus, method thereof and headphone apparatus  
A digital signal processing apparatus in which a first digital filter reproduces that part of an impulse response that responds fast, and a decimation filter converts the output of a delay device...
8094827 Sound reproducing apparatus and sound reproducing system  
The present invention provides a sound reproducing system and a sound reproducing apparatus that can provide a high realistic sensation to a user, without having to do a troublesome task on the...
8085952 Combination equalizer and calibrator circuit assembly for audio system  
A combination equalizer and calibrator circuit assembly includes a calibrator formed of a frequency control circuit, a signal generator, an amplifier circuit connected with a microphone, a compare...
8085947 Multi-channel echo compensation system  
A system reduces echoes in an audio system by de-correlating audio signals. Adaptive filters provide compensation based on the de-correlated signals. A controller controls the de-correlation based...
8073147 Dereverberation method, apparatus, and program for dereverberation  
A dereverberation device includes a reverberation estimation unit for estimating a later reflection component by using information on an impulse response from a signal source to an observation...
8059826 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...
8046214 Low complexity decoder for complex transform coding of multi-channel sound  
A multi-channel audio decoder provides a reduced complexity processing to reconstruct multi-channel audio from an encoded bitstream in which the multi-channel audio is represented as a coded...
8041045 Unnatural reverberation  
An electronic reverberation system employs a processor to produce a plurality of delays samples that are added to a direct signal to produce reverberant sound. The disclosed system generates or...
8041046 Reverberation adjusting apparatus, reverberation adjusting method, reverberation adjusting program, recording medium on which the reverberation adjusting program is recorded, and sound field correcting system  
The present invention provides a sound field correcting system and a reverberation adjusting apparatus capable of correcting a reverberation time characteristic by an easy operation without...
8036767 System for extracting and changing the reverberant content of an audio input signal  
A method and apparatus for extracting and changing the reverberant content of an input signal is provided. The method of estimating an impulse response for a reverberant system includes sampling a...
8031876 Audio system  
Disclosed is an audio system including a group of loudspeakers that form a sound field by delivering into a single space sound signals passed through respective ones of a plurality of sound signal...
8027483 System and method for designing sound systems  
The invention is directed to a display and method for conducting sound system design. The display is configured to simultaneously show a sound system model comprising both audio components and...
8023662 Reverberation adjusting apparatus, reverberation correcting method, and sound reproducing system  
The present invention provides a sound reproducing system capable of accurately analyzing a reverberation characteristic of amplified sound including an arrival direction of a reverberation...

Matches 51 - 100 out of 417 < 1 2 3 4 5 6 7 8 9 >