197467 ⎘
Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques Pre-filtering or post-filtering
Methods for improving high frequency reconstruction
#602Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
#603Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
#604Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
#605DECODING SOUND PARAMETERS
#606Method for switching rate and bandwidth scalable audio decoding rate
#607Speech enhancement with minimum gating
#608Method and apparatus for low bit rate speech coding detection
#609Speech post-processing using MDCT coefficients
#610Enhanced conversion of wideband signals to narrowband signals
#611Speech encoding apparatus and speech encoding method that encode speech signals in a scalable manner, and speech decoding apparatus and speech decoding method that decode scalable encoded signals
#612Cardioid beam with a desired null based acoustic devices, systems and methods
#613Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
#614SOUND ENCODER, SOUND DECODER, AND THEIR METHODS
#615Energy shaping apparatus and energy shaping method
#616Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
#617Post filter, decoder, and post filtering method
#618Broadband frequency translation for high frequency regeneration
#619MDCT domain post-filtering apparatus and method for quality enhancement of speech
#620Methods and apparatus for improving high frequency reconstruction of audio and speech signals
#621Mixer with adaptive post-filtering
#622SIGNAL CODING AND DECODING WITH PRE- AND POST-PROCESSING
#623Adaptive approach to improve G.711 perceptual quality
#624Spectral translation/folding in the subband domain
#625Audio signal enhancement
#626Method and apparatus for predictively quantizing voiced speech
#627Reproduction device, reproduction method and computer usable medium having computer readable reproduction program emodied therein
#628Method for weighted overlap-add
#629Apparatus and method for enhancing speech intelligibility in a mobile terminal
#630Audio Signal Decoding Using Complex-Valued Data
#631Methods and apparatus for post-processing of speech signals
#632Speech coding system and method
#633METHOD OF IMPLEMENTING EQUALIZER IN AUDIO SIGNAL DECODER AND APPARATUS THEREFOR
#634Method for concatenating frames in communication system
#635METHOD AND APPARATUS FOR IMPROVING CALL QUALITY IN PORTABLE TERMINAL
#636Method and apparatus for processing digital audio signal and related computer program
#637Alias-free subband processing
#638Multichannel audio coding
#639Method and apparatus for speech data
#640Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
#641Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
#642Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
#643Method for representing multi-channel audio signals
#644Enhanced method for signal shaping in multi-channel audio reconstruction
#645Apparatus and method for quantization in digital communication system
#646Gain adjusting method and a gain adjusting device
#647Speech post-processing using MDCT coefficients
#648Method and device for the version of digital signals with heterogeneous formats and application thereof to the digital amplification of audio signals
#649Enhanced conversion of wideband signals to narrowband signals
#650Multichannel audio coding
#651Receiving device and method
#652System and methods for an identity theft protection bot
#653Pre-resampling to achieve continuously variable analysis time/frequency resolution
#654Adaptive equalizer for a coded speech signal
#655Method and system for receiving and decoding audio signals
#656Method and device for quantizing an information signal
#657Apparatus and method for modulating voice in portable terminal
#658Audio coding
#659Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
#660Method and device for adaptive bandwidth pitch search in coding wideband signals
#661Audio codec post-filter
#662Filter smoothing in multi-channel audio encoding and/or decoding
#663Envelope shaping of decorrelated signals
#664Optimized fidelity and reduced signaling in multi-channel audio encoding
#665Method for adjusting speech volume in a telecommunications device
#666Method and apparatus for enhancing loudness of a speech signal
#667Advanced periodic signal enhancement
#668Noise-dependent postfiltering
#669Apparatus for and program of processing audio signal
#670System and method of signal pre-conditioning with adaptive spectral tilt compensation for audio equalization
#671Speech decoder, speech decoding method, program and storage media to improve voice clarity by emphasizing voice tract characteristics using estimated formants
#672Method and device for frequency-selective pitch enhancement of synthesized speech
#673Frequency domain postfiltering for quality enhancement of coded speech
#674Tone quality adjustment device designing method and designing device, tone quality adjustment device designing program, and tone quality adjustment device
#675Perceptual weighting device and method for efficient coding of wideband signals
#676Method and device for adaptive bandwidth pitch search in coding wideband signals
#677Methods for improving high frequency reconstruction
#678Method for packet loss and/or frame erasure concealment in a voice communication system
#679Method for adaptive filtering
#680Cardioid beam with a desired null based acoustic devices, systems and methods
#681Human auditory system modeling with masking energy adaptation
#682Systems and methods for processing an audio signal for replay on an audio device
#683Sample rate conversion with pitch-based interpolation filters
#684Split-band compression circuit, audio signal processing method and audio signal processing system
#685Human auditory system modeling with masking energy adaptation
#686Dynamically reconfigurable filter bank
#687Audio content fingerprinting based on two-dimensional constant Q-factor transform representation and robust audio identification for time-aligned applications
#688Speech/music discrimination
#689Pitch post-filter
#690Interest points density control for audio matching