Abstract
A direction of arrival (DOA) estimator for concurrent speakers in a reverberant environment is presented. The DOA estimation task is formulated in the short-Time Fourier transform (STFT) in two stages. In the first stage, a single narrow-band DOA per time-frequency (T-F) is selected, since the speech sources are assumed to exhibit disjoint activity in the STFT domain. The narrow-band DOA is obtained as the maximum of the narrow-band steered response power phase transform (SRP-PHAT) localization spectrum at that T-F bin. In addition, for each narrow-band DOA, a quality measure is calculated, which provides the confidence in the estimated decision. In the second stage, the wide-band localization spectrum is calculated using a weighted histogram of the narrow-band DOAs with the quality measures as weight. Finally, the wide-band DOA estimation is obtained by selecting the peaks in the wide-band localization spectrum. The results of our experimental study demonstrate the benefit of the proposed algorithm as compared to the wide-band SRP-PHAT algorithm in a reverberant environment.
Original language | English |
---|---|
Title of host publication | 2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781538663783 |
DOIs | |
State | Published - 2 Jul 2018 |
Event | 2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018 - Eilat, Israel Duration: 12 Dec 2018 → 14 Dec 2018 |
Publication series
Name | 2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018 |
---|
Conference
Conference | 2018 IEEE International Conference on the Science of Electrical Engineering in Israel, ICSEE 2018 |
---|---|
Country/Territory | Israel |
City | Eilat |
Period | 12/12/18 → 14/12/18 |
Bibliographical note
Publisher Copyright:© 2018 IEEE.