Title :
Pole-zero code excited linear prediction
Author :
Flanagan, J.A. ; Murray, B. ; Fagan, A.D.
Author_Institution :
Univ. Coll. Dublin, Ireland
Abstract :
A new speech coding algorithm `pole-zero CELP´ is proposed in which the short-time spectral envelope of the speech wave is modelled with a pole-zero filter. Objective and subjective comparisons of a CELP (12 pole and 14 pole) and a pole-zero CELP (8 pole-6 zero and 12 pole-6 zero) coder are made. The results presented show that pole-zero CELP is able to reproduce the original speech signal better than the CELP coder. The informal subjective tests show a preference for the pole-zero CELP coder (12 pole-6 zero)
Keywords :
encoding; filtering and prediction theory; poles and zeros; speech analysis and processing; 12 pole-6 zero coder; pole-zero CELP coder; pole-zero code excited linear prediction; speech coding algorithm;
Conference_Titel :
Digital Processing of Signals in Communications, 1991., Sixth International Conference on
Conference_Location :
Loughborough
Print_ISBN :
0-85296-522-2
