An Invertible Discrete Auditory Transform
Xin, Jack ; Qi, Yingyong
Commun. Math. Sci., Tome 3 (2005) no. 1, p. 47-56 / Harvested from Project Euclid
Text on Project Euclid
PDF
Alt PDF
A discrete auditory transform (DAT) from sound signal to spectrum is presented and shown to be invertible in closed form. The transform preserves energy, and its spectrum is smoother than that of the discrete Fourier transform (DFT) consistent with human audition. DAT and DFT are compared in signal denoising tests with spectral thresholding method. The signals are noisy speech segments. It is found that DAT can gain 3 to 5 decibel (dB) in signal to noise ratio (SNR) over DFT except when the noise level is relatively low.
Publié le : 2005-03-14
Classification:  
@article{1111095640,
     author = {Xin, Jack and Qi, Yingyong},
     title = {An Invertible Discrete Auditory Transform},
     journal = {Commun. Math. Sci.},
     volume = {3},
     number = {1},
     year = {2005},
     pages = { 47-56},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1111095640}
}

Xin, Jack; Qi, Yingyong. An Invertible Discrete Auditory Transform. Commun. Math. Sci., Tome 3 (2005) no. 1, pp.  47-56. http://gdmltest.u-ga.fr/item/1111095640/