Title :
Warped linear prediction (WLP) in speech and audio processing
Author :
Laine, Unto K. ; Karjalainen, Matti ; Altosaar, Toomas
Author_Institution :
Acoust. Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
A linear prediction process is applied to frequency warped signals. The warping is realized by using orthonormal FAM (frequency modulated complex exponentials) functions. The general formulation of WLP is given and effective realizations with allpass filters are studied. The application of auditory WLP to speech coding and speech recognition has given good results
Keywords :
all-pass filters; audio coding; audio signals; filtering theory; frequency modulation; functions; hearing; prediction theory; speech coding; speech recognition; allpass filters; audio coding; audio processing; auditory warped linear prediction; frequency modulated complex exponentials; frequency warped signals; orthonormal FAM functions; speech coding; speech processing; speech recognition; Acoustics; Filter bank; Frequency; Laboratories; Proposals; Signal processing; Signal resolution; Speech coding; Speech processing; Speech recognition;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.390018
