Frequency-dependent speaker detection using a microphone array

  • In this paper we propose a method to determine the active speaker for each time-frequency point in the noisy signals of a microphone array. This detection is based on a statistical model where the speech signals as well as noise signals are assumed to be multivariate Gaussian random variables in the Fourier domain. Based on this model we derive a maximum-likelihood detector for the active speaker. The decision is based on the a posteri- ori signal to noise ratio (SNR) of a speaker dependent max-SNR beamformer.

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Author:Jürgen Freudenberger, Simon Grimm
Parent Title (English):Fortschritte der Akustik : DAGA 2016, Aachen : 14.-17. März 2016 : 42. Jahrestagung für Akustik
Document Type:Conference Proceeding
Year of Publication:2016
Release Date:2018/11/23
Open Access?:Ja