Event Details
Time Delay Estimation for Speaker Localization in Noisy Reverberant Environment
Presenter: Saeed Mosayyebpour
Supervisor: Dr. T. A. Gulliver
Date: Mon, April 14, 2014
Time: 14:00:00 - 15:00:00
Place: EOW 430
ABSTRACT
Abstract:
The goal of Time Delay Estimation (TDE) methods is to estimate the relative Time Difference of Arrival (TDOA) between spatially separated microphones. The estimated time delay information is useful in determining the location of a speaker in a room and tracking the source of a signal. It is also used for applications such as speech enhancement, automatic camera tracking in video-conferencing, and microphone array beam steering. This is a difficult problem since the input signal typically has colored and non-stationary characteristics, and additive noise is present. The presence of reverberation is particularly detrimental because of its long duration and the nonminimum phase nature of the Room Impulse Response (RIR). In this seminar, we will briefly talk about the challenges and the motivation for the TDE. Then the three main solution categories including TDE for the speaker localization will be presented followed by our two novel solutions for the TDE problem.