By Topic

Pole-zero determination of the vocal-tract transfer function

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

1 Author(s)
Liedtke, C.-E. ; Heinrich Hertz Institut für Schwingungsforschung Abt., Berlin, Germany

The transfer function of the vocal tract T(f) is defined as the ratio of the volume velocity at the mouth opening and the sound pressure of the source. In general, this transfer function T(f) can be described by conjugate complex pairs of poles and zeros. This paper describes new efforts in the accurate estimation of the pole- and zero-location (frequency and bandwidth). The procedure is performed by an appropriate computer program. As the spectrum is plotted on a computer display, the human operator is given the possibility to mark areas of interest by light-pen. From the spectrum a first estimate of the frequency and bandwidth is evaluated by calculating the maximum (or minimum) of the transfer function in a given area and the width of its 3-dB slope. A subsequent variation of the frequency and bandwidth leads to an accurate evaluation of the pole or zero location in the s-plane. The variation strategy used by the computer and results are presented in this paper.

Published in:

Audio and Electroacoustics, IEEE Transactions on  (Volume:18 ,  Issue: 4 )