Processing of the speech or voice signal to produce another audible or non-audible signal

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

G10L21/00Processing of the speech or voice signal to produce another audible or non-audible signal

G10L21/003Changing voice quality G10L21/007characterised by the process used G10L21/01Correction of time axis G10L21/013Adapting to target pitch G10L21/02Speech enhancement G10L21/0202Applications G10L21/0205Enhancement of intelligibility of clean or coded speech G10L21/0208Noise filtering G10L21/0216characterised by the method used for estimating noise G10L21/0224Processing in the time domain G10L21/0232Processing in the frequency domain G10L21/0264characterised by the type of parameter measurement G10L21/0272Voice signal separating G10L21/028using properties of sound source G10L21/0308characterised by the type of parameter measurement G10L21/0316by changing the amplitude G10L21/0324Details of processing therefor G10L21/0332involving modification of waveforms G10L21/034Automatic adjustment G10L21/0356for synchronising with other signals G10L21/0364for improving intelligibility G10L21/038using band spreading techniques G10L21/0388Details of processing therefor G10L21/04Time compression or expansion G10L21/043by changing speed G10L21/045using thinning out or insertion of a waveform G10L21/047characterised by the type of waveform to be thinned out or inserted G10L21/049characterised by the interconnection of waveforms G10L21/055for synchronising with other signals G10L21/057for improving intelligibility G10L21/06Transformation of speech into a non-audible representation G10L21/10transforming into visible information G10L21/12by displaying time domain information G10L21/14by displaying frequency domain information G10L21/16transforming into a non-visible representation G10L21/18Details of the transformation process