Method and apparatus for obtaining an attenuation factor

Method and apparatus for re-encoding signals

ADAPTIVE BIT POOL ALLOCATION IN SUB-BAND CODING

EFFICIENT IMPLEMENTATION OF ANALYSIS AND SYNTHESIS FILTERBANKS FOR MPEG AAC AND MPEG AAC ELD ENCODERS/DECODERS

Efficient coding of digital media spectral data using wide-sense perceptual similarity

Method and device for performing frame erasure concealment on higher-band signal

METHOD AND DEVICE FOR PERFORMING FRAME ERASURE CONCEALMENT TO HIGHER-BAND SIGNAL

Method and device for performing frame erasure concealment to higher-band signal

Audio regeneration method

AUDIO CODING AND DECODING

Mixed audio separation apparatus

Encoding and decoding of audio signals using complex-valued filter banks

System and method for an improved voice detector

Encoding and/or decoding digital signals using a permutation value

Spectral translation/folding in the subband domain

TRANSCODING METHOD AND APPARATUS

AUDIO SIGNAL ENCODING METHOD, AUDIO SIGNAL DECODING METHOD, TRANSMITTER, RECEIVER, AND WIRELESS MICROPHONE SYSTEM

Communication system noise cancellation power signal calculation techniques

Multi-mode speech encoding system for encoding a speech signal used for selection of one of the speech encoding modes including multiple speech encoding rates

Speech coding

Adaptive gain reduction for encoding a speech signal

Method and apparatus for predictively quantizing voiced speech

Distributed audio coding for wireless hearing aids

Device and a method of playing audio clips

Layer based scalable multimedia datastream compression

Adaptive tilt compensation for synthesized speech

Selection of preferential pitch value for speech processing

Method and apparatus for encoding and decoding high frequency band

Audio processing apparatus and audio processing method

System And Method For Compressing And Reconstructing Audio Files

Method and apparatus for encoding audio signal, and method and apparatus for decoding audio signal

Signal compressing apparatus

Signal compressing apparatus

Audio playback device having function for adjusting playback speed and a method thereof

Method and apparatus for encoding and decoding noise signal

SYSTEM AND METHOD FOR ENHANCING PERCEPTUAL QUALITY OF LOW BIT RATE COMPRESSED AUDIO DATA

Signal compressing apparatus

Compressing Method for Digital Audio Files

Signal processing apparatus and signal processing method

Spectral refinement system

METHOD OF IMPLEMENTING EQUALIZER IN AUDIO SIGNAL DECODER AND APPARATUS THEREFOR

Signal compressing apparatus

Audio encoding apparatus and spectrum modifying method

Signal compressing apparatus

Signal compressing apparatus

System and method for enhancing perceptual quality of low bit rate compressed audio data

Systems, methods, and apparatus for dynamic normalization to reduce loss in precision for low-level signals

Two stage frequency subband decomposition

Method and noise suppression circuit incorporating a plurality of noise suppression techniques

Estimation of pulsed speech model parameters

Pitch determination for speech processing

SPEECH CODING APPARATUS AND METHOD

Method and apparatus to extract important frequency component of audio signal and method and apparatus to encode and/or decode audio signal using the same

Systems and methods for dynamic normalization to reduce loss in precision for low-level signals

METHOD AND APPARATUS TO ENCODE AND/OR DECODE AUDIO AND/OR SPEECH SIGNAL

System and method for modeling speech spectra

Hybrid multi-channel/cue coding/decoding of audio signals

Noise suppressing apparatus

Audio signal interpolation method and device

Method and system for efficient transcoding of audio data

Signal compressing apparatus

Signal compressing apparatus

Time-warping of decoded audio signal after packet loss

Updating of Decoder States After Packet Loss Concealment

Packet loss concealment for sub-band predictive coding based on extrapolation of sub-band audio waveforms

Re-phasing of decoder states after packet loss

Constrained and Controlled Decoding After Packet Loss

Packet Loss Concealment for Sub-band Predictive Coding Based on Extrapolation of Full-band Audio Waveform

Alias-free subband processing

Audio signal processing apparatus, audio signal processing method, and program for having the method executed by computer

Multichannel audio coding

Systems, methods, and apparatus for gain factor limiting

Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks

Multi-channel audio encoding/decoding with parametric compression/decompression and weight factors

Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks

Signal processing method, signal processing apparatus and recording medium

Parametric joint-coding of audio sources

System and method for processing an audio signal

Method for representing multi-channel audio signals

System for speech encoding having an adaptive encoding arrangement

Audio signal encoding method, program of audio signal encoding method, recording medium having program of audio signal encoding method recorded thereon, and audio signal encoding device

Multi-channel encoder

Low complexity subband-domain filtering in the case of cascaded filter banks

Audio spatial environment engine using a single fine structure

Efficient filtering with a complex modulated filterbank

Audio coding

Automated audio sub-band comparison

Subband synthesis filtering process and apparatus

Multichannel audio coding

Music detector for echo cancellation and noise reduction

Encoding apparatus, encoding method, and computer product

Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Method and device for low delay processing

MELP-to-LPC transcoder

Frequency domain format enhancement

LPC-to-MELP transcoder

Time scale modification of audio using bark bands

Device and method for encoding, decoding speech and audio signal

Filterbank-based processing of speech signals

Apparatus and method for embedding a watermark using sub-band filtering

Spectrum coding apparatus, spectrum decoding apparatus, acoustic signal transmission apparatus, acoustic signal reception apparatus and methods thereof

Correlation domain formant enhancement

Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding

Compressed domain voice activity detector

Bit-stream watermarking

Method and apparatus for encoding audio data

METHOD OF BITRATE CONTROL AND ADJUSTMENT FOR AUDIO CODING

METHOD OF BAND GROUP PARTITION FOR WIDEBAND AUDIO CODEC

Audio signal processing device, signal recovering device, audio signal processing method and signal recovering method

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

Signal encoding apparatus and method, signal decoding apparatus and method, programs and recording mediums

Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation

Method and system for comparing audio signals and identifying an audio source

Method apparatus and system for processing acoustic signals

Communication system noise cancellation power signal calculation techniques

Adaptive grouping of parameters for enhanced coding efficiency

Audio coding apparatus and audio decoding apparatus

Record carrier having an encoded wide-band digital audio signal recorded thereon

System and method for speech-enabled call routing

High-band speech coding apparatus and high-band speech decoding apparatus in wide-band speech coding/decoding system and high-band speech coding and decoding method performed by the apparatuses

Band correcting apparatus

Method for differentiated digital voice and music processing, noise filtering, creation of special effects and device for carrying out said method

Highband speech coding apparatus and method for wideband speech coding system

Apparatus, method, and medium for processing audio signal using correlation between bands

Method and apparatus for detecting speech segments in speech signal processing

Pitch determination based on weighting of pitch lag candidates

Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Efficient and scalable parametric stereo coding for low bitrate audio coding applications

Efficient and scalable parametric stereo coding for low bitrate audio coding applications

Efficient and scalable parametric stereo coding for low bitrate audio coding applications

Stereo balance interpolation

Low-bitrate encoding/decoding method and system

Multichannel audio extension

Efficient coding of digital media spectral data using wide-sense perceptual similarity

Quantization matrices using normalized-block pattern of digital audio

Compressed domain universal transcoder

Synthesis subband filter for MPEG audio decoder and a decoding method thereof

Audio decoding apparatus and method for band expansion with aliasing adjustment

Quantization matrices for jointly coded channels of audio

Parametric compression/decompression modes for quantization matrices for digital audio

Apparatus and method for concealing highband error in split-band wideband voice codec and decoding

Signal analyzing method, signal synthesizing method of complex exponential modulation filter bank, program thereof and recording medium thereof

Compressed domain conference bridge

Methods for improving high frequency reconstruction

Classification of speech and music using sub-band energy

Techniques for improving audio clarity and intelligibility at reduced bit rates over a digital network

Rate-distortion control scheme in audio encoding

Cue-based audio coding/decoding

Efficient and scalable parametric stereo coding for low bitrate audio coding applications

Apparatus and method of voice recognition system for AV system

Scale factor based bit shifting in fine granularity scalability audio coding

Foundational AI model for capturing and encoding audio with artificial intelligence semantic analysis and without low pass or high pass filters

Methods and systems for enhancing the detection of synthetic voice data

Methods and apparatus for supplementing partially readable and/or inaccurate codes in media

Acoustic event sensor

Systems and methods for processing an audio signal for replay on an audio device

Psychoacoustics for improved audio reproduction and speaker protection

Speech-based and group-based content synchronization