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8170233 |
Loudspeaker array system
The invention is a multi-channel loudspeaker system that provides a compact loudspeaker configuration and filter design methodology that operates in the digital signal processing domain. Further,...
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8160268 |
Loudspeaker array system
The invention is a multi-channel loudspeaker system that provides a compact loudspeaker configuration and filter design methodology that operates in the digital signal processing domain. Further,...
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8160274 |
System and method for digital signal processing
The present invention provides for methods and systems for digitally processing an audio signal. Specifically, the present invention provides for a headliner speaker system that is configured to...
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8150068 |
Array speaker system
Signals on respective RL, FL, C, FR, RR channels are divided into high frequency signals and low frequency signals by HPFs and LPFs respectively. The low frequency signals on the RL, FL, and C...
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8130966 |
Method for performance measurement and optimization of sound systems using a sliding band integration curve
A method for performance measurement and optimization of sound systems using electroacoustic measurements and a sliding band integration curve. Nearfield and spatially and temporally averaged...
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8125851 |
Apparatus and method for controlling acoustic radiation pattern output through array of speakers
Provided are an apparatus and method for controlling an acoustic radiation pattern output through an array of speakers. The apparatus stores a plurality of filter values for forming a plurality of...
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8121312 |
Wide-band equalization system
A Wide-band Equalization System (“WBES”) based on near- and far-field measurement data. The WBES includes a subwoofer equalizer having an FIR filter together with decimator and interpolator fil...
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8121302 |
Method of correction of acoustic parameters of electro-acoustic transducers and device for its realization
A device and method for improving the performance of an electro-acoustic transducer. An acoustic test signal is generated through the electro-acoustic transducer. The acoustic test signal is...
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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...
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8085950 |
Sound signal processing apparatus and sound signal processing method
A sound signal processing apparatus and a sound signal processing method divide an input signal into a low frequency signal output (11) and a high frequency signal output (10), and delay only the...
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8085939 |
Stereophonic sound reproduction system for compensating low frequency signal and method thereof
A stereophonic sound reproduction system for compensating a low frequency signal and a method thereof, wherein a mono component signal for compensating low frequency signals which are attenuated...
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8081775 |
Loudspeaker apparatus for radiating acoustic waves in a hemisphere around the centre axis
Loudspeaker apparatus comprise commonly some sort of casings or assemblies, in which one or more single speakers are integrated and which are used to convert electrical signals into sound. A...
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8077881 |
Sound device
A sound device is provided with an input terminal for electronic signal input; a low pass filter adapted to filter electronic signals input to the input terminal and to output low frequency range...
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8077880 |
Combined multirate-based and fir-based filtering technique for room acoustic equalization
A combined multirate-based Finite Impulse Response (FIR) filter equalization technique combines a low-order FIR equalization filter operating at a lower rate for equalization of a loudspeaker-room...
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8050424 |
Speaker system, audio amplifier and audio system
Speaker system is constructed of a plurality of speakers each including a bass-reflex type cabinet. The speaker system is designed to differentiate a low-band resonance frequency between the...
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8045722 |
Method of and apparatus for controlling sound field through array speaker
Provided are a method and apparatus for controlling a sound field through an array speaker. The method includes calculating a coefficient of a filter that controls sound pressure of an input...
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8041049 |
Method for controlling output from ultrasonic speaker and ultrasonic speaker system
The invention maintains optimum sound quality even when a listener changes his/her angle formed between a sound wave emitting axis of an ultrasonic transducer and a front direction axis of the...
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8031883 |
Crosstalk cancellation system with sound quality preservation and parameter determining method thereof
A crosstalk cancellation system for preserving quality of sound and the parameter determining method thereof. The system can cancel a two-channel audio signal without compensating a frequency...
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8019093 |
Stream segregation for stereo signals
Separating a source in a stereo signal having a left channel and a right channel includes transforming the signal into a short-time transform domain; classifying portions of the signals having...
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8005240 |
Speaker with frequency directed dual drivers
A speaker that includes a pair of spaced-apart, in-plane mounted drivers connected in series to a network for applying the appropriate frequency component of the electrical input drive signal to...
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7991170 |
Loudspeaker crossover filter
A method is provided for computing frequency responses of crossover filters for multi-way loudspeakers. The method prescribes driver coordinates for drivers in the multi-way loudspeaker, prescribes...
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7986792 |
Adapter connectable between audio amplifier and transmitter for cordless speaker
An adaptor is connectable between a signal processor and a transmission module. The signal processor has three audio channels for feeding respectively a first audio signal, a second audio signal,...
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7961888 |
Method and system for enhancing bass effect in audio signals
The quality of music output from audio systems is improved by simulating the effect of low frequency signals in the human ear. This thus allows listeners to perceive the lower frequency signals,...
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RE42390 |
Sound signal playback machine and method thereof
In a sound signal playback machine and method thereof, predetermined high frequency components are extracted from sound signals SL to SC of a main channel by high frequency pass filters 21 to 25,...
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7826626 |
Cross-over frequency selection and optimization of response around cross-over
A system and method provide at least a single stage optimization process which maximizes the flatness of the net subwoofer and satellite speaker response in and around a cross-over region. A first...
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7766747 |
Gaming machine with surround sound features
A gaming machine for conducting a wagering game includes selective application of surround sound. The selective application of surround sound allows certain key gaming events to be emphasized over...
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7657039 |
Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same
The present invention comprises a circuit having at least not less than three cascade connected phase shift circuits and wherein the phase characteristic of the circuit is determined in such a...
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7653447 |
Integrated audio video signal processing system using centralized processing of signals
Integrated processing of audio/video signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home entertainment system components. The...
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7613311 |
Digital implementation of a fourth order Linkwitz-Riley network with a low cutoff frequency
A simplified digital implementation of a fourth order Linkwitz-Riley crossover network is provided using approximations and transformations of the classical form. The approximation is particularly...
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7577263 |
System for audio signal processing
A sound reproduction system comprising a digital audio signal input (1), a digital audio signal processor (2, DSP) and a digital audio signal output (3) wherein the digital signal processor (2,...
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7545946 |
Method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges
A method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges provides a low cost alternative to present external surround array systems. The...
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7542815 |
Extraction of left/center/right information from two-channel stereo sources
A digital audio signal processing system and method transforms two-channel stereo time-domain data into the frequency domain. Vector operations are performed upon the frequency-domain data by which...
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7460673 |
Point source speaker system
The system of the present invention includes, briefly, a point source speaker system, comprising a processor which produces a left minus right (L−R) audio signal, a right plus left (R+L) and a r...
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7418104 |
Speaker system
A speaker system having a first speaker, a second speaker, and a housing having a first mounting surface to which the first speaker is mounted and a second mounting surface to which the second...
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7409067 |
Method and apparatus for adjusting frequency characteristic of signal
In a frequency characteristic adjustment apparatus incorporated in an audio system, a frequency characteristic of an audio signal is made to agree with a target frequency characteristic, thus...
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7409066 |
Method of adjusting filter parameters and an associated playback system
To improve upon a method of adjusting at least one filter parameter such as the mid-frequency of at least one filter unit provided with a playback system for audio signals, this filter unit being...
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7397924 |
Modular loudspeaker
The present invention relates to a modular loudspeaker, primarily intended to be used as a studio monitor and comprising a broadband module for radiating a first frequency range with a lower...
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7392880 |
Dual range horn with acoustic crossover
A new approach has been developed to combine mid-range and high frequency sound into the throat of a horn designed for sound reinforcement. An acoustic low pass filter element is interposed between...
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7321661 |
Current feedback system for improving crossover frequency response
A loudspeaker is provided for receiving an incoming electrical signal and transmitting an acoustical signal. The loudspeaker may include a power amplifier that has an input and an output, where the...
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7315624 |
Stream segregation for stereo signals
Separating a source in a stereo signal having a left channel and a right channel includes transforming the signal into a short-time transform domain; classifying portions of the signals having...
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7302067 |
Audio system for a computer
A computer audio system includes an audio codec and a tone controller. The audio codec is operably coupled to receive audio information, which includes tone control settings, PCM digital audio...
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7242783 |
Audio limiting circuit
An audio limiting circuit capable of satisfying frequency dependent limits and time domain constraints, is disclosed. In one illustrative embodiment, an input node receives an unattenuated input...
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7164770 |
Surround sound speaker system
The present invention uses multivoice coil drivers in conjunction with the small satellite speakers of multichannel surround sound systems to achieve an overall linear response between 100 Hz to...
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7139402 |
Sound reproduction device
A sound reproduction device of the present invention includes: a first loudspeaker; a second loudspeaker; a first loudspeaker drive section for driving the first and second loudspeakers, the first...
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7116790 |
Loudspeaker
Conventional analog loudspeakers have a limited dynamic range as compared to the available dynamic range of digital recordings. Digital recordings use up to 24 bits and this implies a dynamic range...
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7088827 |
Reconfigurable speaker system
A reconfigurable speaker system for producing sound in response to at least one of right and left channel audio signals generated by an audio source. The speaker system can be configured by the...
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7085389 |
Infinite slope loudspeaker crossover filter
An improvement to inventor's prior art loudspeaker crossover filter invention is described. A substantially flat network input-impedance characteristic across the audible frequency range is...
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7027605 |
Mid-range loudspeaker
A midrange loudspeaker for operation in conjunction with low-frequency and high-frequency loudspeaker modules in a theater sound system, having a reduced depth for deployment in limited space. The...
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7003124 |
System and method for adjusting frequency response characteristics of high-pass crossovers supplying signal to speakers used with subwoofers
A system and method for adjusting the frequency response of a main speaker system used in conjunction with a subwoofer by modifying the input signal in response to user-adjustable settings to...
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6993141 |
System for distributing a signal between loudspeaker drivers
A system for distributing a source voltage from a signal source to a number of drivers or loudspeakers is disclosed. The system includes at least one autotransformer for connection to the signal...
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