Academic Commons

Articles

The Ideal Interaural Parameter Mask: A Bound on Binaural Separation Systems

Mandel, Michael I.; Ellis, Daniel P. W.

We introduce the ideal interaural parameter mask as an upper bound on the performance of mask-based source separation algorithms that are based on the differences between signals from two microphones or ears. With two additions to our Model-based EM source separation and localization system, its performance approaches that of the IIPM upper bound to within 0.9 dB. These additions battle the effects of reverberation by absorbing reverberant energy and by forcing the ILD estimate to be larger than it might otherwise be. An oracle reliability measure was also added, in the hope that estimating parameters from more reliable regions of the spectrogram would improve separation, but it was not consistently useful.

Files

Also Published In

Title
2009 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, October 18-21, 2009, Mohonk Mountain House, New Paltz, NY, USA
DOI
https://doi.org/10.1109/ASPAA.2009.5346506

More About This Work

Academic Units
Electrical Engineering
Publisher
IEEE
Published Here
June 26, 2012
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.