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Class Information
Number: 704/200.1
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > Psychoacoustic
Description: Subject matter wherein an operation on the signal is based upon the masking behavior of the human auditory system.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8712764 Device and method for quantizing and inverse quantizing LPC filters in a super-frame Apr. 29, 2014
8712768 System and method for enhanced artificial bandwidth expansion Apr. 29, 2014
8706507 Arbitrary shaping of temporal noise envelope without side-information utilizing unchanged quantization Apr. 22, 2014
8706511 Low-complexity spectral analysis/synthesis using selectable time resolution Apr. 22, 2014
8687818 Method for dynamically adjusting the spectral content of an audio signal Apr. 1, 2014
8687829 Apparatus and method for multi-channel parameter transformation Apr. 1, 2014
8688440 Coding apparatus, decoding apparatus, coding method and decoding method Apr. 1, 2014
8688441 Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content Apr. 1, 2014
8682652 Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic Mar. 25, 2014
8682645 Signal analyzer, signal analyzing method, signal synthesizer, signal synthesizing, windower, transformer and inverse transformer Mar. 25, 2014
8645126 Apparatus and method of encoding and decoding signals Feb. 4, 2014
8639498 Apparatus and method for coding and decoding multi object audio signal with multi channel Jan. 28, 2014
8634577 Audio decoder Jan. 21, 2014
8634783 Communication device with reduced noise speech coding Jan. 21, 2014
8630848 Audio signal transient detection Jan. 14, 2014
8626494 Data compression format Jan. 7, 2014
8626495 Method of correcting errors in binary masks Jan. 7, 2014
8626501 Encoding apparatus, encoding method, decoding apparatus, decoding method, and program Jan. 7, 2014
8620674 Multi-channel audio encoding and decoding Dec. 31, 2013
8620645 Non-causal postfilter Dec. 31, 2013
8620643 Auditory eigenfunction systems and methods Dec. 31, 2013
8615390 Low-delay transform coding using weighting windows Dec. 24, 2013
8615391 Method and apparatus to extract important spectral component from audio signal and low bit-rate audio signal coding and/or decoding method and apparatus using the same Dec. 24, 2013
8612219 SBR encoder with high frequency parameter bit estimating and limiting Dec. 17, 2013
8612220 Quantization after linear transformation combining the audio signals of a sound scene, and related coder Dec. 17, 2013
8612225 Voice recognition device, voice recognition method, and voice recognition program Dec. 17, 2013
8606571 Spatial selectivity noise reduction tradeoff for multi-microphone systems Dec. 10, 2013
8589155 Adaptive tuning of the perceptual model Nov. 19, 2013
8583423 Method and arrangement for processing of speech quality estimate Nov. 12, 2013
8583443 Recording and reproducing apparatus Nov. 12, 2013
8571875 Method, medium, and apparatus encoding and/or decoding multichannel audio signals Oct. 29, 2013
8571877 Apparatus for providing an upmix signal representation on the basis of the downmix signal representation, apparatus for providing a bitstream representing a multi-channel audio signal, methods Oct. 29, 2013
8566107 Multi-mode method and an apparatus for processing a signal Oct. 22, 2013
8566082 Method and system for the integral and diagnostic assessment of listening speech quality Oct. 22, 2013
8560303 Apparatus and method for visualization of multichannel audio signals Oct. 15, 2013
8560328 Encoding device, decoding device, and method thereof Oct. 15, 2013
8554549 Encoding device and method including encoding of error transform coefficients Oct. 8, 2013
8543390 Multi-channel periodic signal enhancement system Sep. 24, 2013
8543389 Coding/decoding of digital audio signals Sep. 24, 2013
8543387 Estimating pitch by modeling audio as a weighted mixture of tone models for harmonic structures Sep. 24, 2013
8543385 Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting Sep. 24, 2013
8535236 Apparatus and method for analyzing a sound signal using a physiological ear model Sep. 17, 2013
8538746 Apparatus and method of providing a quality measure for an output voice signal generated to reproduce an input voice signal Sep. 17, 2013
8538766 Audio decoder, audio object encoder, method for decoding a multi-audio-object signal, multi-audio-object encoding method, and non-transitory computer-readable medium therefor Sep. 17, 2013
8532982 Method and apparatus to encode and decode an audio/speech signal Sep. 10, 2013
8527264 Method and system for encoding audio data with adaptive low frequency compensation Sep. 3, 2013
8521518 Device and method for acoustic communication Aug. 27, 2013
8515741 System (s), method (s) and apparatus for reducing on-chip memory requirements for audio decoding Aug. 20, 2013
8515767 Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs Aug. 20, 2013
8498876 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks Jul. 30, 2013

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