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9042565 Spatial audio encoding and reproduction of diffuse sound  
A method and apparatus processes multi-channel audio by encoding, transmitting or recording “dry” audio tracks or “stems” in synchronous relationship with time-variable metadata controlled by a...
9002024 Reverberation suppressing apparatus and reverberation suppressing method  
A reverberation suppressing apparatus, includes: a sound acquiring unit which acquires a sound signal; a reverberation data computing unit which computes reverberation data from the acquired sound...
8995675 Methods and systems for direct-to-indirect acoustic radiance transfer  
Methods, systems, and computer program products for simulating propagation of sound in a static scene can be operated for pre-computing a transfer operator for simulating results of sound...
8965000 Method and apparatus for applying reverb to a multi-channel audio signal using spatial cue parameters  
A method and system for applying reverb to an M-channel downmixed audio input signal indicative of X individual audio channels, where X is greater than M. Typically, the method includes steps of:...
8958567 Method and system for split client-server reverberation processing  
In some embodiments, a method applying reverberation to audio from at least one client of a set of clients which share a virtual environment, including by asserting position data and at least one...
8958587 Signal dereverberation using environment information  
An audio processing system includes an audio processing device and an external device, the audio processing device having a signal processing unit adapted for running an algorithm for processing...
8929560 Method and apparatus for audio processing  
A method and apparatus for introducing a time-varying time delay randomly into the individual reproduction channels of a sound recording, two in the case of binaural presentation. This emulates...
8908875 Electronic device with digital reverberator and method  
Electronic devices having digital reverberators are disclosed, together with a method of reproducing sound for a user with the digital reverberator. The digital reverberator uses digital surface...
8908874 Spatial audio encoding and reproduction  
A method and apparatus processes multi-channel audio by encoding, transmitting or recording “dry” audio tracks or “stems” in synchronous relationship with time-variable metadata controlled by a...
8891786 Selective notch filtering for howling suppression  
Systems, methods, and other embodiments associated with selective notch filtering for howling suppression are described. According to one embodiment, an apparatus includes a howling detector that...
8885442 Method for determining an acoustic property of an environment  
The present invention relates to a method for determining an acoustic property of an environment. According to the method a sound signal and at least two reflection signals of the sound signal...
8879754 Sound reproducing system with superimposed digital signal  
A home use sound reproduction system for Hi-fi, with digital signal transfer from a playback unit via a control unit to one or more active loudspeakers, each including or arranged beside an...
8873761 Audio signal processing device and audio signal processing method  
An audio signal processing device includes: head related transfer function convolution processing units convoluting head related transfer functions with audio signals of respective channels of...
8837745 Electro-acoustic audio reverberation device and method  
Disclosed is an audio reverberation apparatus. The audio reverberation apparatus interacts with or may include a mechanical or acoustic reverberation element. An audio signal is pitch transposing...
8817997 Stereophonic sound output apparatus and early reflection generation method thereof  
A stereophonic sound output apparatus and an early reflection generation method thereof. The stereophonic sound output apparatus includes an early reflection generator to implement an early...
8787586 Information processor and controller device  
A controller device is provided whereby players can experience realistic sounds. The controller device is connected to the main body of an information processing apparatus, wherein the controller...
8761410 Systems and methods for multi-channel dereverberation  
The present technology provides robust, high quality dereverberation of an acoustic signal which can overcome or substantially alleviate the problems associated with the diverse and dynamic nature...
8751029 System for extraction of reverberant content of an audio signal  
A reverberant characteristic of an acoustic space is superimposed on an audio signal that is received by an apparatus. The apparatus decomposes the audio signal into an estimated original dry...
8750529 Signal processing apparatus  
A signal processing apparatus is provided. The signal processing apparatus comprises: an inputting section for inputting audio signals on a plurality of channels; an acoustic type acquiring...
8737645 Increasing perceived signal strength using persistence of hearing characteristics  
One example embodiment increases perceived signal strength of a sound signal based on persistence of hearing. When the ear perceives a signal it takes a finite length of time to process it. During...
8731183 System and method for cancelling echo in a communications line  
An echo canceller system includes a first echo canceller having a first voltage divider and an adaptable second voltage divider that is configured to generate a first replica of an echo. A second...
8724821 Sound field controller  
A sound field controller includes: a sound field generation section which generates an effect sound signal for giving a sound field effect sound to an audio signal; an acquisition section which...
8705757 Computationally efficient multi-resonator reverberation  
A signal processor to produce a simulated reverberation effect based on an input signal and conveying the impression of multiple interconnected resonating spaces. A feedback delay network produces...
8705779 Surround sound virtualization apparatus and method  
A surround sound virtualization apparatus and method. The surround sound virtualization apparatus may include an audio decoder to perform head-related transfer function (HRTF) filtering, and a...
8688249 Processing audio input signals  
A method of reproducing a stereo output signal (having a left field and a right field) represented as digital samples such that said stereo signal emulates the production of said audio signal from...
8687829 Apparatus and method for multi-channel parameter transformation  
A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel...
8682010 Automatic environmental acoustics identification  
A headphone system includes sound processor which calculates properties of the environment from signals from an internal microphone and an external microphone. The impulse response of the...
8675882 Sound signal processing device and method  
In reverberant environments, reflected waves including an echoic sound and a muffled sound affect and disable recognition of sound arrival directions. As a result, the subjective clearness of the...
8670850 System for modifying an acoustic space with audio source content  
An audio signal processing system is configured to separate an audio signal into a dry signal component and one or more reverberant signal components. The dry signal component and the reverberant...
8670570 Environmental effects generator for digital audio signals  
An device and method of generating environmental reverberation effects for digital audio signals is presented. The device includes a reverberation controller. The reverberation controller...
8666081 Apparatus for processing a media signal and method thereof  
A method for processing a media signal, comprising: receiving, by an audio processing apparatus, an audio signal including a first channel signal and a second channel signal; estimating center...
8644520 Morphing of aural impulse response signatures to obtain intermediate aural impulse response signals  
A system and method include obtaining an aural impulse signature at a first location in a simulated space. An aural impulse signature at a second location in a simulated space is also obtained....
8634568 Efficient filter for artificial ambience  
A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces...
8626321 Processing audio input signals  
A method of processing an audio input signal represented as digital samples to produce a stereo output signal (having a left field and a right field) such that said stereo signal emulates the...
8626322 Multimedia display based on audio and visual complexity  
A computer-implemented method and system are provided for profiling or analyzing audio data based on an audio parameter. The audio data is divided into audio data into segments. Each segment is...
8615090 Method and apparatus of generating sound field effect in frequency domain  
A method and apparatus of generating a sound field effect is provided. The sound field effect generating apparatus may generate a frequency coefficient that is frequency-transformed from a direct...
8611550 Apparatus for determining a converted spatial audio signal  
An apparatus for determining a converted spatial audio signal, the converted spatial audio signal having an omnidirectional audio component and at least one directional audio component, from an...
8600741 Method of using microphone characteristics to optimize speech recognition performance  
A system and method for tuning a speech recognition engine to an individual microphone using a database containing acoustical models for a plurality of microphones. Microphone performance...
8559646 Spatial audio teleconferencing  
Embodiments of the present invention allow participants in a networked virtual world to converse naturally as in a real-life situation. Each participant can hear “nearby” participants localized...
8553906 Apparatus for enabling karaoke  
There is provided an apparatus for enabling karaoke. The apparatus includes a casing for the apparatus; a microphone array incorporated within the casing, the microphone array being concealed from...
8515104 Binaural filters for monophonic compatibility and loudspeaker compatibility  
A method of processing at least one input signal by a set of binaural filters such that the outputs are playable over headphones to provide a sense of listening to sound in a listening room via...
8503682 Head-related transfer function convolution method and head-related transfer function convolution device  
A head-related transfer function (HRTF) convolution method arranged, when an audio signal is reproduced acoustically by an electro-acoustic conversion unit disposed in a nearby position of both...
8488802 Sound field control device  
A sound field control device has an input part through which an audio signal is input. A storage part stores a first factor obtained by calculating a proportion of energy of direct sound in total...
8473286 Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure  
A noise feedback coding (NFC) system and method that utilizes a simple and relatively inexpensive general structural configuration, but achieves improved flexibility with respect to controlling...
8396226 Methods and systems for improved acoustic environment characterization  
In embodiments of the present invention improved capabilities are described for determining a multi-dimensional sound signature for a location within a hypothetical space, comparing the...
8391504 Method and system for artificial reverberation employing dispersive delays  
The present invention relates to audio signal processing, and more particularly to methods and apparatuses for emulating and controlling various features of mechanical spring reverberation in a...
8374355 Robust and efficient frequency-domain decorrelation method  
An audio signal is processed by transforming the signal into a frequency domain representation having a plurality of frequency subbands. A decorrelated signal is derived from the frequency domain...
8363843 Methods, modules, and computer-readable recording media for providing a multi-channel convolution reverb  
The present invention provides a method of generating, on a data processing system, a multi-channel audio convolution reverb, said method comprising providing a plurality of impulse responses...
8351615 Impulse response processing device, reverberation applying device and program  
In an impulse response processing device, a waveform dividing part divides a waveform of an original impulse response into a plurality of blocks on a time axis. A time adjusting part performs a...
8351614 Digital reverberations for audio signals  
The present disclosure provides a digital audio signal processing system that comprises a set of delay lines, allpass and lowpass filters to achieve the reverberation effect. The present...
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