@inproceedings{e3b39f31816d4321a0126dedc237c455,
title = "Underdetermined methods for multichannel audio enhancement with partial preservation of background sources",
abstract = "Multichannel audio enhancement and source separation traditionally attempt to isolate a single source and remove all background noise. In listening enhancement applications, however, a portion of the background sources should be retained to preserve the listener's spatial awareness. We describe a time-varying spatial filter designed to apply a different gain to each sound source with minimal distortion of the source spectra and background spatial cues. The filter, inspired by methods from underdetermined source separation, adjusts its parameters at each time-frequency bin to preserve dominant sources. The time-varying filter enjoys greater flexibility than a fixed filter, while partial background preservation improves robustness to noise and errors.",
keywords = "Beamforming, audio source separation, hearing AIDS, microphone arrays, speech enhancement",
author = "Corey, {Ryan M.} and Singer, {Andrew C.}",
note = "Funding Information: This work was supported in part by Systems on Nanoscale Information fabriCs (SONIC), one of the six SRC STARnet Centers, sponsored by MARCO and DARPA. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant Number DGE-1144245. Publisher Copyright: {\textcopyright} 2017 IEEE.; 2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017 ; Conference date: 15-10-2017 Through 18-10-2017",
year = "2017",
month = dec,
day = "7",
doi = "10.1109/WASPAA.2017.8169988",
language = "English (US)",
series = "IEEE Workshop on Applications of Signal Processing to Audio and Acoustics",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "26--30",
booktitle = "2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2017",
address = "United States",
}