By Topic

Psychoacoustically based scalar quantization of the LPC poles

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
A. Erell ; Dept. of Electron. Commun. Control & Comput. Syst., Tel Aviv Univ., Ramat Aviv, Israel ; Y. Orgad ; J. L. Goldstein

The most straightforward way to incorporate knowledge of formant perception in LPC scalar quantization is by quantizing the LPC poles. The authors measured directly the perceptual sensitivity to changes in the poles during continuous speech, and used these data in the design of a scalar quantization scheme. The average pole-frequency just noticeable difference (JND) was found to strongly decrease with increasing formant bandwidth, and to depend to a lesser degree on the frequency. A considerable coding efficiency was achieved by utilizing the JND data and the measured distribution ranges of the pole frequencies. A 30 bits per frame quantization produced similar speech quality as that obtained with a standard 41 bits quantization of the reflection coefficients

Published in:

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Date of Conference:

11-14 Apr 1988