By Topic

CCD CZT Spectral analysis applied to real time homomorphics speech analysis-synthesis

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
$31 $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)
Quatieri, T.F. ; Massachusetts Institute of Technology, Cambridge, MA

In this paper we discuss real time spectral analysis using charge-coupled device (CCD) nonrecursive filters with an application to homomorphic speech analysis-synthesis. We consider the conventional chirp-z-transform (CZT) realization of the discrete Fourier transform (DFT) and an analogous CZT realization of a sliding transform, a modified DFT, better suited to CCD technology than the DFT. Novel CCD configurations based on both transforms are proposed for improved spectral resolution and frame rate; such schemes utilize parallel spectral processing and interpolation. Stationarity conditions and windowing techniques required by these CCD structures are discussed within the context of short-time spectral analysis. A number of homomorphic schemes and experimental results are presented which illustrate the trade-offs that CCD technology imposes between implementational complexity and synthetic speech quality.

Published in:

Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.  (Volume:3 )

Date of Conference:

Apr 1978