Time difference of arrival estimation of speech source in a noisy and reverberant environment
نویسندگان
چکیده
منابع مشابه
Approaches for Time Difference of Arrival Estimation in a Noisy and Reverberant Environment
Determining the spatial position of a speaker finds a growing interest in video conference scenario where automated camera steering and tracking are required. As a preliminary step for the localization, microphone array can be used to extract the time difference of arrival (TDOA) of the speech signal. The direction of arrival of the speech signal is then determined by the relative time delay be...
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We study the estimation of time difference of arrival (TDOA) under noisy and reverberant conditions. Conventional TDOA estimation methods such as MUltiple SIgnal Classification (MUSIC) are not robust to noise and reverberation due to the distortion in the spatial covariance matrix (SCM). To address this issue, this paper proposes a robust SCM estimation method, called weighted SCM (WSCM). In th...
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Time Difference Of Arrival (TDOA) estimates are used for passive acoustic single sound source localization with microphone arrays. The technique of choice in most systems for TDOA estimation is the Generalized Cross-Correlation (GCC) method [1]. For a multi-sound source scenario, cross-correlation terms of the active sound source signals as well as noise and reverberation effects complicate the...
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TDOA(time difference of arrival-) based algorithms are common methods for speech source localization. The generalized cross correlation (GCC) method is the most important approach for estimating TDOA between microphone pairs. The performance of this method significantly degrades in the presence of noise and reverberation. This paper addresses the problem of 3D localization in joint noisy and re...
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عنوان ژورنال:
- Signal Processing
دوره 85 شماره
صفحات -
تاریخ انتشار 2005