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- W2788670096 abstract "Wind induced noise is one of the major concerns of outdoor acoustic signal acquisition. It affects many field measurement and audio recording scenarios. Filtering such noise is known to be difficult due to its broadband and time varying nature. In this paper, a new method to mitigate wind induced noise in microphone signals is developed. Instead of applying filtering techniques, wind induced noise is statistically separated from wanted signals in a singular spectral subspace. The paper is presented in the context of handling microphone signals acquired outdoor for acoustic sensing and environmental noise monitoring or soundscapes sampling. The method includes two complementary stages, namely decomposition and reconstruction. The first stage decomposes mixed signals in eigen-subspaces, selects and groups the principal components according to their contributions to wind noise and wanted signals in the singular spectrum domain. The second stage reconstructs the signals in the time domain, resulting in the separation of wind noise and wanted signals. Results show that microphone wind noise is separable in the singular spectrum domain evidenced by the weighted correlation. The new method might be generalized to other outdoor sound acquisition applications." @default.
- W2788670096 created "2018-03-06" @default.
- W2788670096 creator A5035877658 @default.
- W2788670096 creator A5059705422 @default.
- W2788670096 date "2018-01-28" @default.
- W2788670096 modified "2023-09-26" @default.
- W2788670096 title "Mitigating Wind Induced Noise in Outdoor Microphone Signals Using a Singular Spectral Subspace Method" @default.
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- W2788670096 doi "https://doi.org/10.3390/technologies6010019" @default.
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