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Modulation filtering for structured time-frequency estimation of audio signals | IEEE Conference Publication | IEEE Xplore

Modulation filtering for structured time-frequency estimation of audio signals


Abstract:

This paper considers the estimation of time-frequency coefficients of audio signals from the viewpoint of spectro-temporal modulation analysis. It is shown that estimator...Show More

Abstract:

This paper considers the estimation of time-frequency coefficients of audio signals from the viewpoint of spectro-temporal modulation analysis. It is shown that estimators employing neighborhood-smoothed shrinkage masks are closely related to modulation filters. The usefulness of this perspective is first demonstrated by separating an artificial mixture of components with different orientation in time-frequency. It is secondly shown that modulation filters can be learned directly from audio and that their usage improves the state of the art in noise-reduction by a small margin when measured by signal to noise ratio.
Date of Conference: 20-23 October 2013
Date Added to IEEE Xplore: 09 January 2014
Electronic ISBN:978-1-4799-0972-8

ISSN Information:

Conference Location: New Paltz, NY, USA

References

References is not available for this document.