Robust Time-delay Estimation in Highly Adverse Acoustic Environments
نویسندگان
چکیده
This paper describes an algorithm for robust time-delay estimation (TDE) in situations where a large amount of additive noise and reverberation is present. In [1] an adaptive eigenvalue decomposition algorithm has been developed for TDE between two microphones in highly reverberant acoustic environments. In this paper we extend this algorithm to highly noisy and reverberant environments, by using a generalized eigenvalue decomposition or by prewhitening the noisy microphone signals. It is shown that time-delays can be robustly estimated for SNRs down to -5 dB.
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تاریخ انتشار 2001