197414 ⎘
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; Codebooks Codebook element generation
Sub-classes:Filling of Non-Coded Sub-Vectors in Transform Coded Audio Signals
#2Filling of Non-Coded Sub-Vectors in Transform Coded Audio Signals
#3Data compression with entropy encoding
#4Filling of non-coded sub-vectors in transform coded audio signals
#5Filling of non-coded sub-vectors in transform coded audio signals
#6Filling of Non-Coded Sub-Vectors in Transform Coded Audio Signals
#7Coding and decoding a sound signal by adapting coefficients transformable to linear predictive coefficients and/or adapting a code book
#8Filling of non-coded sub-vectors in transform coded audio signals
#9Formant based speech reconstruction from noisy signals
#10Filling of non-coded sub-vectors in transform coded audio signals
#11Formant based speech reconstruction from noisy signals
#12Format based speech reconstruction from noisy signals
#13Method for speech coding, method for speech decoding and their apparatuses
#14Communication device with reduced noise speech coding
#15Method and apparatus for encoding a speech signal
#16Noise estimating apparatus and method
#17Method for speech coding, method for speech decoding and their apparatuses
#18Method and apparatus for generating lattice vector quantizer codebook
#19Method and apparatus for receiving an encoded speech signal based on codebooks
#20System and method for encoding and decoding pulse indices
#21Method for speech coding, method for speech decoding and their apparatuses
#22Steganography in digital signal encoders
#23Coding method, decoding method, codec method, codec system and relevant apparatuses
#24Communication device with reduced noise speech coding
#25Excitation vector generator, speech coder and speech decoder
#26CELP speech decoder modifying an input vector with a fixed waveform to transform a waveform of the input vector
#27Multi-stage quantization method and device
#28MULTILINGUAL WEIGHTED CODEBOOKS
#29Coding/decoding of a digital audio signal, in CELP technique
#30Method and apparatus for transmitting an encoded speech signal
#31Method and apparatus for decoding
#32Providing a codebook for bandwidth extension of an acoustic signal
#33SPEECH CODER AND SPEECH DECODER
#34Vector quantization apparatus and method for updating decoded vector storage
#35Audio coding
#36Method and apparatus for speech encoding by evaluating a noise level based on gain information
#37Method for speech coding, method for speech decoding and their apparatuses
#38Method and apparatus for speech encoding by evaluating a noise level based on pitch information
#39Method for speech coding, method for speech decoding and their apparatuses
#40Method for speech coding, method for speech decoding and their apparatuses Method for speech coding, method for speech decoding and their apparatuses
#41Method and apparatus for speech decoding by evaluating a noise level based on gain information
#42Method for speech coding, method for speech decoding and their apparatuses
#43Method and device for coding audio data based on vector quantisation
#44Method and apparatus for speech decoding based on a parameter of the adaptive code vector
#45Excitation vector generator, speech coder and speech decoder
#46Single-codebook vector quantization for multiple-rate applications
#47Method and apparatus for transmitting an encoded speech signal
#48Code excited linear prediction speech decoder and method thereof
#49Method for speech coding, method for speech decoding and their apparatuses
#50Noise canceller
#51Method for speech coding, method for speech decoding and their apparatuses