Dynamically localizing multiple speakers based on the time-frequency domain

Autor: Hodaya Hammer, Shlomo E. Chazan, Jacob Goldberger, Sharon Gannot
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: EURASIP Journal on Audio, Speech, and Music Processing, Vol 2021, Iss 1, Pp 1-10 (2021)
Druh dokumentu: article
ISSN: 1687-4722
DOI: 10.1186/s13636-021-00203-w
Popis: Abstract In this study, we present a deep neural network-based online multi-speaker localization algorithm based on a multi-microphone array. Following the W-disjoint orthogonality principle in the spectral domain, time-frequency (TF) bin is dominated by a single speaker and hence by a single direction of arrival (DOA). A fully convolutional network is trained with instantaneous spatial features to estimate the DOA for each TF bin. The high-resolution classification enables the network to accurately and simultaneously localize and track multiple speakers, both static and dynamic. Elaborated experimental study using simulated and real-life recordings in static and dynamic scenarios demonstrates that the proposed algorithm significantly outperforms both classic and recent deep-learning-based algorithms. Finally, as a byproduct, we further show that the proposed method is also capable of separating moving speakers by the application of the obtained TF masks.
Databáze: Directory of Open Access Journals