A Steered Response Power Approach with Bilinear Prediction-Based Trade-Off Prewhitening for Speaker Localization
ICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)(2024)
摘要
This paper studies the problem of acoustic source localization in room environments. It presents an improved steered response power (SRP) approach with low-complexity and trade-off prewhitening. This method consists of two steps. In the first one, the linear predictor that is used to model the speech signals is formulated as a bilinear form, and a group of convex-constrained linear prediction sub-models with respect to dual sub-predictors are established to pre-filter microphone signals. The pre-filtered (prewhitened) microphone signals are subsequently used in SRP for speaker localization. Simulation results demonstrate the properties of the presented method: it is robust to reverberation and noise, and is computationally efficient thanks to the bilinear form.
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关键词
Acoustic source localization,bilinear forms,linear prediction,trade-off prewhitening
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