ASIA unversity:Item 310904400/8867
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    题名: Noise reduction using simultaneous masking property and SNR variation for various noise corruptions
    作者: Lu, Ching-Ta;Tseng, Kun-Fu
    贡献者: Department of Information Communication
    关键词: Acoustic intensity;Acoustics;Computer networks;Signal processing;Signal to noise ratio;Speech enhancement;Speech processing;Auditory masking;Colored noise;Perceptual;Residual noises;SNR variation
    日期: 2008
    上传时间: 2010-04-08 20:30:37 (UTC+8)
    出版者: Asia University
    摘要: 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.
    關聯: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings :1601-1604
    显示于类别:[資訊傳播學系] 會議論文

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