Title :
Adaptive cascade filter for speech analysis
Author :
Ching, P.C. ; Goodyear, C.C.
Author_Institution :
University of Bath, School of Electrical Engineering, Bath, UK
fDate :
1/1/1983 12:00:00 AM
Abstract :
Two techniques are described for sequentially adapting a finite impulse response digital filter which is constructed as a cascade of 2nd-order sections. It is shown that the radius and angle co-ordinates of each zero pair may be separately adapted. The first method uses a modified LMS algorithm, while the second, by employing prequantised coefficients, avoids the need for a control parameter. The performance, when used for linear prediction of speech, is discussed.
Keywords :
cascade networks; digital filters; filtering and prediction theory; speech analysis and processing; LMS algorithm; cascade filter; finite impulse response digital filter; linear prediction; prequantised coefficients; speech analysis;
Journal_Title :
Computers and Digital Techniques, IEE Proceedings E
DOI :
10.1049/ip-e.1983.0002