刘红玉, 易本顺, 谢秋莹, 邱波. 基于ZFFT的自动声反馈抑制算法[J]. 微电子学与计算机, 2016, 33(6): 18-22.
引用本文: 刘红玉, 易本顺, 谢秋莹, 邱波. 基于ZFFT的自动声反馈抑制算法[J]. 微电子学与计算机, 2016, 33(6): 18-22.
LIU Hong-yu, YI Ben-shun, XIE Qiu-ying, QIU Bo. Automatic Acoustic Feedback Suppression Algorithm Based on ZFFT[J]. Microelectronics & Computer, 2016, 33(6): 18-22.
Citation: LIU Hong-yu, YI Ben-shun, XIE Qiu-ying, QIU Bo. Automatic Acoustic Feedback Suppression Algorithm Based on ZFFT[J]. Microelectronics & Computer, 2016, 33(6): 18-22.

基于ZFFT的自动声反馈抑制算法

Automatic Acoustic Feedback Suppression Algorithm Based on ZFFT

  • 摘要: 提出一种基于细化快速傅里叶变换(ZFFT)的自动声反馈抑制算法.利用ZFFT能在原始频率分辨率不变且不发生主瓣重叠的情况下, 可分辨特征频率临近的分量的特性, 采用ZFFT进行频谱细化来提高声反馈频点的分析精度.实验结果表明, 提出算法可提高声反馈频点的分析精度, 有效抑制声反馈, 提高语音质量.

     

    Abstract: An automatic acoustic feedback suppression algorithm based on Zoom-FFT (ZFFT) was proposed. To improve the analysis precision of the acoustic feedback frequency, ZFFT, which can distinguish the components of the distinguishable feature frequency when the original frequency resolution is constant and the main lobe is not overlapped, is used to refine the spectrum. In the comparison experiments, the proposed algorithm can improve the analysis precision of the acoustic feedback frequency, effectively suppress the acoustic feedback and improve the voice quality.

     

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