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  • Kalman Filter with Sensitivity Tuning for Improved Noise Reduction in Speech

    Author(s)
    So, Stephen
    George, Aidan EW
    Ghosh, Ratna
    Paliwal, Kuldip K
    Griffith University Author(s)
    Paliwal, Kuldip K.
    So, Stephen
    George, Aidan E.
    Year published
    2017
    Metadata
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    Abstract
    In this paper, we will present a Kalman filtering algorithm that achieves better noise reduction in a single-channel speech enhancement application. The proposed method aims to tune the Kalman filter gain in order to offset the bias that is inherent when estimating speech parameters from noise-corrupted speech. After analysing the Kalman recursion equations and the filter gain, the sensitivity metric was shown to be useful in tuning the Kalman filter to achieve better noise reduction. Speech enhancement experiments were performed on the commonly available NOIZEUS database corrupted with white Gaussian noise, and the proposed ...
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    In this paper, we will present a Kalman filtering algorithm that achieves better noise reduction in a single-channel speech enhancement application. The proposed method aims to tune the Kalman filter gain in order to offset the bias that is inherent when estimating speech parameters from noise-corrupted speech. After analysing the Kalman recursion equations and the filter gain, the sensitivity metric was shown to be useful in tuning the Kalman filter to achieve better noise reduction. Speech enhancement experiments were performed on the commonly available NOIZEUS database corrupted with white Gaussian noise, and the proposed method was evaluated and compared with recent speech enhancement methods, such as the STSA estimator with wavelet thresholding on multi-tapered spectra (or STSA-WT) and generalised subspace method. The proposed method was shown to produce better quality speech than the STSA-WT estimator, while being competitive with the generalised subspace method. Spectrogram analysis demonstrated that the proposed method could achieve similar levels of noise reduction to the Kalman filter in the oracle case.
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    Journal Title
    Circuits, Systems, and Signal Processing
    Volume
    36
    DOI
    https://doi.org/10.1007/s00034-016-0363-y
    Subject
    Signal Processing
    Applied Mathematics
    Electrical and Electronic Engineering
    Publication URI
    http://hdl.handle.net/10072/101034
    Collection
    • Journal articles

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