標題: Multiband analysis and synthesis of spectro-temporal modulations of Fourier spectrogram
作者: Chi, Tai-Shih
Hsu, Chung-Chien
電機工程學系
Department of Electrical and Computer Engineering
公開日期: 1-May-2011
摘要: The two-dimensional spectro-temporal modulation filtering concept of the auditory model [T. Chi, P. Ru, and S. A. Shamma, J. Acoust. Soc. Am. 118(2), 887-906 (2005)] is implemented on the Fourier spectrogram. The Fourier magnitude spectrogram is analyzed in terms of its joint spectro-temporal modulations, which embed the temporal dynamics and spectral structures. Instead of iterative projection methods, the overlap-and-add method is adopted to invert modified Fourier spectrograms back to sounds. The proposed framework not only provides a similar spectro-temporal analytical process for sounds as the auditory model but also produces synthesized sounds with better quality in a timely manner, which makes proposed framework feasible to human speech recognition (HSR) applications as well. (C) 2011 Acoustical Society of America
URI: http://dx.doi.org/10.1121/1.3565471
http://hdl.handle.net/11536/8926
ISSN: 0001-4966
DOI: 10.1121/1.3565471
期刊: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume: 129
Issue: 5
起始頁: E190
結束頁: E196
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