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ICASSP
2011
IEEE
13 years 3 months ago
Decomposition of speech signals for analysis of aperiodic components of excitation
The motivation for this study is the need for careful analysis of aperiodicity of the excitation component in expressive voices. The paper proposes analysis methods which can pres...
Bayya Yegnanarayana, Anand Joseph Xavier Medabalim...
ICASSP
2011
IEEE
13 years 3 months ago
Spectral-envelope and group-delay models for transient signals - Applications to castanets and stop consonants
We present a novel approach to represent transients using spectral-domain amplitude-modulated/frequency-modulated (AM-FM) functions. The model is applied to the real and imaginary...
Ravi R. Shenoy, Chandra Sekhar Seelamantula
TASLP
2010
128views more  TASLP 2010»
13 years 6 months ago
Three Dimensions of Pitched Instrument Onset Detection
In this paper, we suggest a novel group delay based method for the onset detection of pitched instruments. It is proposed to approach the problem of onset detection by examining th...
Andre Holzapfel, Yannis Stylianou, Ali Cenk Gedik,...
INFORMATICALT
2010
151views more  INFORMATICALT 2010»
13 years 10 months ago
The Use of Group Delay Features of Linear Prediction Model for Speaker Recognition
Abstract. New text independent speaker identification method is presented. Phase spectrum of allpole linear prediction (LP) model is used to derive the speech features. The featur...
Algirdas Bastys, Andrej Kisel, Bernardas Salna
SIVP
2008
142views more  SIVP 2008»
13 years 11 months ago
Improved phase estimation based on complete bispectrum and modified group delay
In this paper, a new method for extracting the system phase from the bispectrum of the system output has been proposed. This is based on the complete bispectral data computed in t...
S. V. Narasimhan, Nandini Basumallick, Ratana Chai...
SIGPRO
2008
113views more  SIGPRO 2008»
13 years 11 months ago
Design of maximally flat IIR filters with flat group delay responses
Digital filters with linear phase responses, that is, constant group delay responses are needed in many applications for signal and image processing. In this paper, a novel method...
Xi Zhang