INTERSPEECH 2007
8th Annual Conference of the International Speech Communication Association

Antwerp, Belgium
August 27-31, 2007

Spectro-Temporal Analysis of Speech Using 2-D Gabor Filters

Tony Ezzat, Jake Bouvrie, Tomaso Poggio

MIT, USA

We present a 2-D spectro-temporal Gabor filterbank based on the 2-D Fast Fourier Transform, and show how it may be used to analyze localized patches of a spectrogram. We argue that the 2-D Gabor filterbank has the capacity to decompose a patch into its underlying dominant spectro-temporal components, and we illustrate the response of our filterbank to different speech phenomena such as harmonicity, formants, vertical onsets/offsets, noise, and overlapping simultaneous speakers.

Full Paper

Bibliographic reference.  Ezzat, Tony / Bouvrie, Jake / Poggio, Tomaso (2007): "Spectro-temporal analysis of speech using 2-d Gabor filters", In INTERSPEECH-2007, 506-509.