By Topic

An FIR Implementation of Zero Frequency Filtering of Speech Signals

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

2 Author(s)
Srinivas, K.S.S. ; Indian Inst. of Technol. Madras, Chennai, India ; Prahallad, K.

Zero frequency filtering is a technique used in the characterization and analysis of glottal activity from speech signals. The filter design originally proposed has an infinite impulse response (IIR) filter followed by two successive finite impulse response (FIR) filters. In this paper, the process of its computation is analyzed and a simplified FIR implementation is proposed by employing the inherent pole-zero cancellation involved in the process. Theoretical proofs are derived in both, frequency and time domains. We show that the theoretically derived FIR filter is a convolution of two filters, whose impulse responses are triangular shaped. The advantage of the proposed FIR filter lies in reduction of computational requirements for zero frequency filtering which include - 1) use of single-precision floating point and 2) stability of the filter.

Published in:

Audio, Speech, and Language Processing, IEEE Transactions on  (Volume:20 ,  Issue: 9 )