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7616767 |
Method and device for determining acoustical transfer impedance
The method comprises generating an acoustical volume velocity Q in the listening position, measuring a response quantity p, such as sound or vibration, at a suspected source position resulting from...
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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...
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7606716 |
Systems and methods for multi-dialog surround audio
Systems and processes for transmission of multi-channel audio from a sender to one or more recipients. Multi-channel audio is encoded with a plurality of different dialog channels. The encoded...
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7602922 |
Multi-channel encoder
There is described a multi-channel encoder ( 10; 600 ) for processing input signals conveyed in N input channels to generate corresponding output signals conveyed in M output channels together with...
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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...
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7567676 |
Sound event detection and localization system using power analysis
The beginning detection, accommodation and frequency bias properties of the human hearing mechanism have been modeled to create systems that can detect directional transients (“sound events”)...
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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...
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7551741 |
System and method for 3D sound processing
A system for 3D sound processing. The system includes a first processing section including a first left lattice filter and a first right lattice filter, respectively electrically connected to a...
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7508947 |
Method for combining audio signals using auditory scene analysis
A process for combining audio channels combines the audio channels to produce a combined audio channel and dynamically applies one or more of time, phase, and amplitude or power adjustments to the...
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7502477 |
Audio reproducing apparatus
A distributing circuit distributes audio signals of a predetermined number of channels to audio signals of a predetermined number of channels. A first signal processing circuit processes audio...
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7499553 |
Sound event detector system
The beginning detection, accommodation and frequency bias properties of the human hearing mechanism have been modeled to create systems that can detect directional transients (“sound events”)...
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7492907 |
Multi-channel audio enhancement system for use in recording and playback and methods for providing same
An audio enhancement system and method for use receives a group of multi-channel audio signals and provides a simulated surround sound environment through playback of only two output signals. The...
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7492906 |
Speaker-characteristic method and speaker reproduction system
To date, there has been no speaker-characteristic compensation method including a processing step of reducing crosstalk between speakers incorporated in a mobile terminal. Accordingly, it has been...
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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...
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7447317 |
Compatible multi-channel coding/decoding by weighting the downmix channel
In processing a multi-channel audio signal having at least three original channels, a first downmix channel and a second downmix channel are provided, which are derived from the original channels....
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7437299 |
Coding of stereo signals
A method of encoding a multichannel signal, such as a stereophonic audio signal, including at least first and second signal components includes transforming at least the first and second signal...
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7394903 |
Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
The apparatus for constructing a multi-channel output signal using an input signal and parametric side information, the input signal including the first input channel and the second input channel...
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7391869 |
Base management systems
Sound processing systems have been developed that create a surround effect without quality degradation experienced by known sound processing systems in non-optimum listening environments. The sound...
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7382885 |
Multi-channel audio reproduction apparatus and method for loudspeaker sound reproduction using position adjustable virtual sound images
A multi-channel audio reproduction apparatus and method for loudspeaker reproduction using virtual sound images whose positions can be adjusted is provided. The multi-channel audio reproduction...
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7356152 |
Method for expanding an audio mix to fill all available output channels
Audio sources in typical computer systems provide different numbers of channels of audio signals to a mixing component of the operating system. This conventional arrangement usually prevents the...
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7330552 |
Multiple positional channels from a conventional stereo signal pair
A method and system accept left and right channel inputs of audio data and provide output audio data for at least three channels in a fashion that may effect a facsimile of the original soundstage...
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7280664 |
Method for apparatus for audio matrix decoding
A method derives at least three audio signals, each associated with a direction, from two input audio signals. In response to the two input signals, a passive matrix generates a plurality of...
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7251337 |
Volume control in movie theaters
A motion picture soundtrack reproduction system has a center front soundtrack channel and a plurality of other soundtrack channels. A volume control adjusts the gain of all the channels. The volume...
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7177432 |
Sound processing system with degraded signal optimization
A sound processing system adaptively mixes active matrix decoding and passive matrix processing of incoming audio signals. Mixed output signals are generated with active matrix decoding where the...
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7164769 |
Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients
A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be...
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7158642 |
Method and apparatus for producing a phantom three-dimensional sound space with recorded sound
A central speaker and personal headset speakers are used to create a three-dimensional phantom sound space for each listener. The speakers of the headset are located in close proximity to, but do...
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7149313 |
Audio signal processing
A method and apparatus for processing multi-channel audio signals in which the channels are processed by one of alternatively selectable processes to produce an alternatively selectable number of...
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7146010 |
Two methods and two devices for processing an input audio stereo signal, and an audio stereo signal reproduction system
The present invention relates to methods and devices for processing one or the other of two types of common input audio stereo signals so that the output signals will reproduce normally wide stereo...
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7092542 |
Cinema audio processing system
In a multi viewer environment where multiple viewers simultaneously experience an audio-visual production, with the visual production occurring on a display surface, a method of increasing the...
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7065222 |
Facilitation of clear presentation in audio user interface
An audio user interface is provided in which items are represented in an audio field by corresponding synthesized sound sources from where sounds related to the items appear to emanate. At least...
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7010128 |
Method of processing and reproducing an audio stereo signal and an audio stereo signal reproduction system
A method of processing and reproducing an input audio stereo signal in an audio signal processing system comprises the steps of (1) splitting a side signal into a first and a second intermediate...
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7003467 |
Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio
The present invention provides a method of decoding two-channel matrix encoded audio to reconstruct multichannel audio that more closely approximates a discrete surround-sound presentation. This is...
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6934394 |
Universal four-channel surround sound speaker system for multimedia computer audio sub-systems
A universal four-channel multimedia computer speaker system is connectable to audio sub-system control circuits (e.g., “sound cards”) of both the four-channel type and the conventional...
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6920223 |
Method for deriving at least three audio signals from two input audio signals
Various equivalent adaptive audio matrix arrangements are disclosed, each of which includes a feedback-derived control system that automatically causes the cancellation of undesired matrix...
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6665407 |
Three channel panning system
A technique for panning over four speakers utilizes an internal three-channel representation (Left, Right, W) where all channel weights are positive. The three channels are combined by a decoder to...
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6658117 |
Sound field effect control apparatus and method
A sound field effect control apparatus and and a sound field effect control method are provided, which are capable of enabling a listener to listen to reflected sounds close to initial reflected...
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6608903 |
Sound field reproducing method and apparatus for the same
A space surrounding a sound source (S) which is set in a sound field ( 10 ) to be reproduced is divided into sound source element regions (S 1 to Sn), and a space surrounding a sound receiving...
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6540613 |
Video game apparatus, background sound output setting method in video game, and computer-readable recording medium storing background sound output setting program
A video game apparatus in which a specified event is executed in a game space displayed on a monitor, and a plurality of background sounds having different attributes are outputted at a specified...
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6430293 |
Recording and play-back two-channel system for providing a holophonic reproduction of sounds
A two-channel sound recording and play-back system for providing a holophonic reproduction or play-back of sounds is herein disclosed. The two-channel recording system comprises cables and...
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6421447 |
Method of generating surround sound with channels processing separately
A method of generating surround sound with channels processing separately includes steps of transmitting left and right channel signals separately to a first multiple frequency phase shift...
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6236730 |
Full sound enhancement using multi-input sound signals
Input sound signals are accepted for presentation to a plurality of speakers where the number of physically present speakers is less than the number of input sound signals. The accepted signals are...
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6198826 |
Qsound surround synthesis from stereo
The inventive mechanism produces multiple output signals from a two-channel stereo input signal. The mechanism produces a first pair of output signals which retain the monaural information in the...
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6195435 |
Method and system for channel balancing and room tuning for a multichannel audio surround sound speaker system
A system and method for providing channel balancing and room tuning for a multi-channel audio surround sound speaker system passes source audio to automatically configured multi-channel...
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6038324 |
Automotive surround sound circuit background of the invention
A surround sound converter for home audio systems includes outputs for a left front speaker, a right front speaker, a left rear speaker, a right rear speaker, and an auxiliary output to accommodate...
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5930733 |
Stereophonic image enhancement devices and methods using lookup tables
A stereophonic image may be enhanced by splitting the left and right input audio signals into a plurality of left and right output signals in a plurality of audio frequency bands and then...
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5818941 |
Configurable cinema sound system
A digital surround sound decoder. The decoder uses an architecture including two signal processing chips to achieve a program that can decode audio data at sufficiently high resolution. The decoder...
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5802181 |
Theater sound system with upper surround channels
An improved theater surround sound system incorporates a screen top speaker and an overhead speaker driven by corresponding upper surround channels to more accurately reproduce sounds produced from...
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5757927 |
Surround sound apparatus
A surround sound apparatus wherein a decoder decodes directionally encoded audio signals for reproduction via a loudspeaker layout over a listening area wherein the signals are decoded by a matrix....
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5748746 |
Ceiling speaker and signal source
A system for controlling distribution of sound in a multi-channel sound system such as a "surround sound" system in a movie theater. Control signals are used to steer, or distribute, portions of...
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5742691 |
Surround sound converter
A surround sound converter for home audio systems includes outputs for a left front speaker, a right front speaker, a left rear speaker, a right rear speaker, and an auxiliary output to accommodate...
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