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Max-gabor analysis and synthesis of spectrograms (2006)
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| Venue: | in Proc. ICSLP |
| Citations: | 5 - 4 self |
BibTeX
@INPROCEEDINGS{Ezzat06max-gaboranalysis,
author = {Tony Ezzat and Jake Bouvrie and Tomaso Poggio},
title = {Max-gabor analysis and synthesis of spectrograms},
booktitle = {in Proc. ICSLP},
year = {2006}
}
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Abstract
We present a method that analyzes a two-dimensional magnitude spectrogram S(f, t) into its local constituent spectro-temporal amplitudes A(f,t), frequencies F(f, t), orientations Θ(f, t), and phases φ(f, t). The method operates by performing a twodimensional local Gabor-like analysis of the spectrogram, retaining only the parameters of the 2D-Gabor filter with maximal amplitude response within the local region. We demonstrate the technique over a wide variety of speakers, and show how the spectrograms in each case may be adequately reconstructed using the parameters of the Max-Gabor analysis. Finally, we discuss the nature of the extracted Max-Gabor parameters. Index Terms: spectrogram analysis, spectrogram reconstruction, two-dimensional Gabor, spectro-temporal frequency, spectrotemporal orientation. 1.
Keyphrases
max-gabor analysis index term spectrotemporal orientation spectro-temporal frequency two-dimensional magnitude spectrogram wide variety local constituent spectrogram reconstruction extracted max-gabor parameter 2d-gabor filter twodimensional local gabor-like analysis maximal amplitude response spectrogram analysis two-dimensional gabor local region
