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- W4285256146 abstract "The problem of direction of arrival (DOA) estima- tion with a circular microphone array has been addressed with classical source localization methods, such as the model-based methods and the parametric methods. These methods have an ad- vantage in estimating the DOAs in a blind manner, i.e. with no (or limited) prior knowledge about the sound sources. However, their performance tends to degrade rapidly in noisy and reverberant environments or in the presence of sensor array limitations, such as sensor gain and phase errors. In this paper, we present a new approach by leveraging the strength of a convolutional neural network (CNN)-based deep learning approach. In particular, we design new circular harmonic features that are frequency- invariant as inputs to the CNN architecture, so as to offer improvements in DOA estimation in unseen adverse environments and obtain good adaptation to array imperfections. To our knowledge, such a deep learning approach has not been used in the circular harmonic domain. Experiments performed on both simulated and real-data show that our method gives significantly better performance, than the recent baseline methods, in a variety of noise and reverberation levels, in terms of the accuracy of the DOA estimation." @default.
- W4285256146 created "2022-07-14" @default.
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- W4285256146 date "2022-01-01" @default.
- W4285256146 modified "2023-10-05" @default.
- W4285256146 title "Acoustic Source Localization in the Circular Harmonic Domain Using Deep Learning Architecture" @default.
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- W4285256146 doi "https://doi.org/10.1109/taslp.2022.3190723" @default.
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