Speech or audio signal analysis-synthesis techniques for redundancy reduction

GPHYSICS G10Musical instruments G10LSPEECH ANALYSIS OR SYNTHESIS SPEECH RECOGNITION SPEECH OR VOICE PROCESSING SPEECH OR AUDIO CODING OR DECODING

G10L19/00Speech or audio signal analysis-synthesis techniques for redundancy reduction

G10L19/0017Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error G10L19/0018Speech coding using phonetic or linguistical decoding of the source; Reconstruction using text-to-speech synthesis G10L19/0019Vocoders specially adapted for particular applications G10L19/002Dynamic bit allocation G10L19/005Correction of errors induced by the transmission channel, if related to the coding algorithm G10L19/008Multichannel audio signal coding or decoding, i.e. using interchannel correlation to reduce redundancies G10L19/012Comfort noise or silence coding G10L19/018Audio watermarking G10L19/02using spectral analysis G10L19/0204using subband decomposition G10L19/0208Subband vocoders G10L19/0212using orthogonal transformation G10L19/0216using wavelet decomposition G10L19/022Blocking G10L19/025Detection of transients or attacks for time/frequency resolution switching G10L19/028Noise substitution G10L19/03Spectral prediction for preventing pre-echo Temporary noise shaping [TNS] G10L19/032Quantisation or dequantisation of spectral components G10L19/035Scalar quantisation G10L19/038Vector quantisation G10L19/04using predictive techniques G10L19/06Determination or coding of the spectral characteristics G10L19/07Line spectrum pair [LSP] vocoders G10L19/08Determination or coding of the excitation function Determination or coding of the long-term prediction parameters G10L19/083the excitation function being an excitation gain G10L19/087using mixed excitation models G10L19/09Long term prediction, i.e. removing periodical redundancies G10L19/093using sinusoidal excitation models G10L19/097using prototype waveform decomposition or prototype waveform interpolative [PWI] coders G10L19/10the excitation function being a multipulse excitation G10L19/107Sparse pulse excitation G10L19/113Regular pulse excitation G10L19/12the excitation function being a code excitation G10L19/125Pitch excitation G10L19/13Residual excited linear prediction [RELP] G10L19/135Vector sum excited linear prediction [VSELP] G10L19/16Vocoder architecture G10L19/167Audio streaming G10L19/173Transcoding G10L19/18Vocoders using multiple modes G10L19/20using sound class specific coding, hybrid encoders or object based coding G10L19/22Mode decision G10L19/24Variable rate codecs G10L19/26Pre-filtering or post-filtering G10L19/265Pre-filtering