期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2011
卷号：2
期号：2
页码：114
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：This paper presents a new method on the use of the gammachirp auditory filter based on a continuouswavelet analysis. The gammachirp auditory filter is designed to provide a spectrum reflecting the spectralproperties of the cochlea, which is responsible for frequency analysis in the human auditory system.The impulse response of the theoretical gammachirp auditory filter that has been developed by Irino andPatterson can be used as the kernel for wavelet transform which approximates the frequency response ofthe cochlea. This study implements the gammachirp auditory filter described by Irino as an analyticalwavelet and examines its application to a different speech signals. The obtained results will be compared with those obtained by two other predefined wavelet families thatare Morlet and Mexican Hat. The results show that the gammachirp wavelet family gives results that arecomparable to ones obtained by Morlet and Mexican Hat wavelet family
