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7613305 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...
7606375 Method and system for automatically generating world environmental reverberation from 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...
7599501 Single bit per-voice dry/wet reverb control  
A dry/wet bit for controlling dry and wet components of an output sound during processing of an input sound is provided. The bit is configurable by a program to indicate when to reverse the dry and...
7583805 Late reverberation-based synthesis of auditory scenes  
A scheme for stereo and multi-channel synthesis of inter-channel correlation (ICC) (normalized cross-correlation) cues for parametric stereo and multi-channel coding. The scheme synthesizes ICC...
7580530 Audio characteristic correction system  
An audio characteristic correction system adapted to an audio surround system in which a sound emitted from a directional speaker (an array speaker) is reflected on a wall surface or a sound...
7567675 System and method for automatic multiple listener room acoustic correction with low filter orders  
A system and a method for correcting, simultaneously at multiple-listener positions, distortions introduced by the acoustical characteristics includes warping room responses, intelligently weighing...
7561699 Environmental reverberation processor  
A method and apparatus for processing sound sources to simulate environmental effects includes source channel blocks for each source and single reverberation block. The source channel blocks...
7522735 Electronic circuit with spring reverberation effect and improved output controllability  
An electronic circuit for adding the effects of reverberation to a high impedance signal produced from an external audio source such as a guitar pickup or a high impedance microphone. The...
7522734 Distributed acoustic reverberation for audio collaboration  
A distributed acoustic reverberator including a network audio connection between at least two separated locations is provided. When a sound is emitted at one of the locations, the reverberator...
7474753 Sound field control apparatus, signal processing apparatus, sound field control program, and signal processing program  
A sound field control apparatus which is capable of adjusting the number of outputs as required. The sound field control apparatus is comprised of a master device, and a plurality of salve devices...
7463740 Sound data processing apparatus for simulating acoustic space  
A data processing apparatus is designed for simulating an acoustic characteristic of an acoustic space which contains a sound source for generating a sound and a sound receiving point for receiving...
7403625 Signal processing unit  
The invention relates to a signal processing unit including an input for receiving an audio signal, and an early pattern generator connected to the input, for defining a predefined early pattern...
7400734 Method and apparatus for emulating audio effect  
The present invention provides an apparatus and a method for emulating audio. The apparatus comprises an echo device, a reverberation device, an audio source device and a first signal synthesizer....
7388959 Harmonic generator and pre-amp  
A Harmonic Generator for audio applications and a Pre-Amplifier circuit are combined to form a Harmonic Generator and Pre-Amplifier circuit. The Harmonic Generator is formed from a Buffer Circuit...
7369663 Method of creating reverberation by estimation of impulse response  
The present invention is directed to creating sound reverberation. In accordance with a preferred embodiment, an apparatus estimates an impulse response for use in reproduction of a sound in a...
7339503 Adaptive asynchronous sample rate conversion  
A system including a buffer, a feedback loop configured to generate a fractional delay from a ratio of a first number of samples written into the buffer to a second number of samples read from the...
7257230 Impulse response collecting method, sound effect adding apparatus, and recording medium  
A TSP signal that is a measurement signal is generated N times by a signal generating portion. The generated TSP signals are supplied to a steel-echo apparatus. Reverberation generated by the...
7233673 In-line early reflection enhancement system for enhancing acoustics  
An in-line early enhancement generation system comprises one or more microphones positioned close to one or more sound sources so as to detect predominantly direct sound, an early reflection...
7217879 Reverberation sound generating apparatus  
A reverberation apparatus is designed for generating a reverberation sound from an input sound with use of an impulse response based on an instruction. In the reverberation apparatus, a first...
7149314 Reverberation processor based on absorbent all-pass filters  
A reverberation processor includes a chain of absorbent all-pass filters and an absorbent delay line. The decay time can be precisely controlled by controlling the magnitude of the attenuation in...
7146296 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 environment....
7099480 System for generating sounds  
The invention relates to a system for generating sounds with a left front loudspeaker which converts an electric signal of a left audio channel and with a right front loudspeaker which converts an...
7076071 Process for enhancing the existing ambience, imaging, depth, clarity and spaciousness of sound recordings  
A process for enhancing ambience in an audio signal output that is derived from an audio signal input in a dual channel audio ambience extraction circuit. The process includes cross-coupling of...
7062337 Artificial ambiance processing system  
An apparatus and method simulates more accurately the natural statistics of a physical reverberation process. A new filter design is provided having a comb shaped group delay. Gain minimums at a...
7054455 Audio system  
An audio system includes a circuit ( 12 ) for processing an audio signal, which circuit ( 12 ) having an input ( 20 ) for receiving the audio signal and an output ( 26 ) for supplying an output...
7010370 System and method for adjusting delay of an audio signal  
A method for adjusting a time delay between a first audio signal and a second audio signal is disclosed. The method includes generating the first audio signal from a buffer as a first data stream...
6996240 Loudspeaker unit adapted to environment  
A loudspeaker unit which requires no particular procedure for correction of the acoustic characteristic even if the installation environment of the loudspeaker unit changes, and which can correct,...
6978027 Reverberation processor for interactive audio applications  
An improved reverberation processor includes a technique for changing environmental parameters without causing disturbing audio artifacts. The technique includes the steps of sequentially changing...
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...
6901149 Audio mixer  
An in-plane position sensor detects positions along two directions or X-Y directions to produce a pair of position signals concurrently. The pair of position signals controls control parameters...
6792119 Audio system  
An audio system includes a circuit ( 12 ) for processing an audio signal, the circuit ( 12 ) having an input ( 20 ) for receiving the audio signal and an output ( 26 ) for supplying an output...
6785391 Apparatus and method for simultaneous estimation of transfer characteristics of multiple linear transmission paths  
N correlated signals are processed by N pre-filters whose transfer characteristics have different zero points, then the processed signals are input into an N-input M-output linear FIR system, and...
6782105 Reflection sound generator with series of main and supplementary FIR filters  
A reflection sound generator has a first filter of Finite Impulse Response (FIR) type that is provided with a first set of parameters representing a first distribution pattern of reflection sounds,...
6754352 Sound field production apparatus  
A sound-field production apparatus includes a direct-sound-generating unit for generating a direct sound from a sound signal supplied to the direct-sound-generating unit and a...
6754351 Music apparatus with dynamic change of effects  
A music effector apparatus is constructed for processing a digital audio signal to produce a music sound while imparting acoustic effects to the music sound by executing microprograms corresponding...
6751322 Acoustic modeling system and method using pre-computed data structures for beam tracing and path generation  
A system and method for acoustic modeling partitions an input 3D spatial model into convex cells, and constructs a cell adjacency data structure representing the neighbor relationships between...
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...
6686833 Compound acoustic actuator drive circuit and portable information terminal  
In a signal generation circuit for a compound acoustic actuator that generates a sound and a vibration in response to a frequency of a signal input to the compound acoustic actuator, the signal...
6665409 Methods for surround sound simulation and circuits and systems using the same  
A method of producing reverberation effects is disclosed. A filter is implemented for modeling early acoustic reflections in response to an input signal using a first processor, the filter includes...
6621906 Sound field generation system  
A signal of a whole audio frequency band is input to input lines CHL and CHR having band-split digital band pass filters BFL 1 to BFLn and BFR 1 to BFRn, attenuators ATL 1 to ATLn and ATR 1 to...
6584202 Method and device for reproducing a stereophonic audiosignal  
A method and an arrangement for reproducing a stereophonic or multi-channel audio signal in a space, particularly in the passenger compartment of a motor vehicle, is described Loudspeakers for...
6580796 Sound effect imparting apparatus  
Reverberation imparting functions as are obtained by a mechanical type reverberation apparatus employing coil spring delaying elements are simulated by an electric circuit configuration. Three...
6563869 Digital signal processing circuit and audio reproducing device using it  
For a left-channel input audio signal, digital filters 30 LL and 30 LR are provided for reproduction of impulse responses used for locating an acoustic image outside the head of a listener, and...
6560341 System for transcription and playback of sonic signals  
A system for enhancing sound signals at a relatively high sonic level power input and a comparatively low signal power level output which are relatively adjusted so that the signal is enhanced when...
6507658 Surround sound panner  
A method and apparatus implements a novel surround sound panning paradigm. Rather than controlling the x-y position of a perceived sound source within a linear grid, the perceived sound is...
6483922 Method and system for generating a simulated reverberation audio signal  
A method and apparatus for generating a simulated reverberation characteristic in an input audio signal having a plurality of channels, each channel transmitting time-synchronized data elements....
6477255 Audio system  
A rear speaker and a front speaker are provided in a room. A microphone is disposed at a listening position between the front and rear speakers for picking up a first sound from the front speakers...
6445798 Method of generating three-dimensional sound  
To produce a three dimensional sound, an original sound recording is duplicated and the original of its duplicate are then recorded with a time delay in the range of 25 ms to 990 ms, preferably 100...
6437230 Effector apparatus in electronic musical instrument  
The present invention permits the parameters of at least one of the frequency characteristic adjusting circuit and the effect circuit in its DSP to be modified for providing the line-out jacks with...
6418226 Method of positioning sound image with distance adjustment  
A sound apparatus is constructed for directing a sound image of a virtual sound source at a designated source point to a listener in a virtual sound field. In the sound apparatus, a database...
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