ASIA unversity:Item 310904400/8867
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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/8867


    Title: Noise reduction using simultaneous masking property and SNR variation for various noise corruptions
    Authors: Lu, Ching-Ta;Tseng, Kun-Fu
    Contributors: Department of Information Communication
    Keywords: Acoustic intensity;Acoustics;Computer networks;Signal processing;Signal to noise ratio;Speech enhancement;Speech processing;Auditory masking;Colored noise;Perceptual;Residual noises;SNR variation
    Date: 2008
    Issue Date: 2010-04-08 20:30:37 (UTC+8)
    Publisher: Asia University
    Abstract: A speech enhancement algorithm adapted by both intra-frame masking properties of the human auditory system and inter-frame SNR variation is proposed to enhance a speech signal corrupted by colored noise. Herein, we employ a gain factor adapted by the SNR variation to reduce the spectral variation over successive frames, so the effect of musical residual noise can be mitigated. In addition, the masking property of the human ears is also employed to adapt the gain factor, enabling the imperceptive residual noise with energy below the noise masking threshold to be retained. The speech distortion is therefore reduced by preserving more noisy speech signals. Experimental results show that the proposed scheme can efficiently reduce the effect of musical residual noise by rendering residual noise perceptually white.
    Relation: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings :1601-1604
    Appears in Collections:[Department of Information Communication] Proceedings

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