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Class Information
Number: 381/63
Name: Electrical audio signal processing systems and devices > Sound effects > Reverberators
Description: Subject matter having a device for producing echoes in the audio signal.










Sub-classes under this class:

Class Number Class Name Patents
381/64 Mechanical (e.g., reverberation chamber) 19


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8705779 Surround sound virtualization apparatus and method Apr. 22, 2014
8705757 Computationally efficient multi-resonator reverberation Apr. 22, 2014
8688249 Processing audio input signals Apr. 1, 2014
8687829 Apparatus and method for multi-channel parameter transformation Apr. 1, 2014
8682010 Automatic environmental acoustics identification Mar. 25, 2014
8675882 Sound signal processing device and method Mar. 18, 2014
8670850 System for modifying an acoustic space with audio source content Mar. 11, 2014
8670570 Environmental effects generator for digital audio signals Mar. 11, 2014
8666081 Apparatus for processing a media signal and method thereof Mar. 4, 2014
8644520 Morphing of aural impulse response signatures to obtain intermediate aural impulse response signals Feb. 4, 2014
8634568 Efficient filter for artificial ambience Jan. 21, 2014
8626321 Processing audio input signals Jan. 7, 2014
8626322 Multimedia display based on audio and visual complexity Jan. 7, 2014
8615090 Method and apparatus of generating sound field effect in frequency domain Dec. 24, 2013
8611550 Apparatus for determining a converted spatial audio signal Dec. 17, 2013
8600741 Method of using microphone characteristics to optimize speech recognition performance Dec. 3, 2013
8559646 Spatial audio teleconferencing Oct. 15, 2013
8553906 Apparatus for enabling karaoke Oct. 8, 2013
8515104 Binaural filters for monophonic compatibility and loudspeaker compatibility Aug. 20, 2013
8503682 Head-related transfer function convolution method and head-related transfer function convolution device Aug. 6, 2013
8488802 Sound field control device Jul. 16, 2013
8473286 Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure Jun. 25, 2013
8396226 Methods and systems for improved acoustic environment characterization Mar. 12, 2013
8391504 Method and system for artificial reverberation employing dispersive delays Mar. 5, 2013
8374355 Robust and efficient frequency-domain decorrelation method Feb. 12, 2013
8363843 Methods, modules, and computer-readable recording media for providing a multi-channel convolution reverb Jan. 29, 2013
8351615 Impulse response processing device, reverberation applying device and program Jan. 8, 2013
8351614 Digital reverberations for audio signals Jan. 8, 2013
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 Jan. 1, 2013
8345887 Computationally efficient synthetic reverberation Jan. 1, 2013
8340304 Method and apparatus to generate spatial sound Dec. 25, 2012
8340303 Method and apparatus to generate spatial stereo sound Dec. 25, 2012
8335331 Multichannel sound rendering via virtualization in a stereo loudspeaker system Dec. 18, 2012
8331575 Data processing apparatus and parameter generating apparatus applied to surround system Dec. 11, 2012
8325933 Device and method for generating and processing sound effects in spatial sound-reproduction systems by means of a graphic user interface Dec. 4, 2012
8315403 Method for controlling directivity of loudspeaker apparatus and audio reproduction apparatus Nov. 20, 2012
8300838 Method and apparatus for determining a modeled room impulse response Oct. 30, 2012
8300841 Techniques for presenting sound effects on a portable media player Oct. 30, 2012
8294604 Test system and method for analog-to-digital converter Oct. 23, 2012
8295498 Apparatus and method for producing 3D audio in systems with closely spaced speakers Oct. 23, 2012
8290169 Time shifted harmonics generator Oct. 16, 2012
8284961 Signal processing device Oct. 9, 2012
8275138 Dynamic acoustic rendering Sep. 25, 2012
8265283 Acoustic processing device and acoustic processing method Sep. 11, 2012
8254588 System and method for providing step size control for subband affine projection filters for echo cancellation applications Aug. 28, 2012
8249264 Method and system for automatically generating world environment reverberation from a game geometry Aug. 21, 2012
8249883 Channel extension coding for multi-channel source Aug. 21, 2012
8218780 Methods and systems for blind dereverberation Jul. 10, 2012
8213622 Binaural sound localization using a formant-type cascade of resonators and anti-resonators Jul. 3, 2012
8214179 Acoustic modeling apparatus and method using accelerated beam tracing techniques Jul. 3, 2012

1 2 3 4 5 6 7 8










 
 
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