谱减法(Spectral Subtraction)是最为经典也是最为成熟的单通道语音增强方法,也常作为其他语音增强算法的基本处理步骤。
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文献[2]提出非线形 谱减法(Nonlinear Spectral Subtraction, NSS),提高了信号的信 噪比。
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功率谱减法 power spectral subtraction
多带谱减法 Multi-Band Spectral Subtraction
提出了谱减法 spectral subtraction
光谱差减法 spectral subtraction method
超声衰减谱法 ultrasonic attenuation spectrum method
长时对数能量减谱法 Long Term Log Spectral Subtraction
频谱删减法 spectral subtraction
减法光谱 Subtraction spectroscopy
常用的算法有谱减 Spectral Subtraction
The conclusion is that improved algorithms have better performance in noise canceling, amplitude subtraction algorithm and power spectrum subtraction algorithm have the almost same performance, and they are effective for the white noise and color noise with Gauss distribution.
结论是:改进形式的算法抑噪性能好,振幅谱减法和功率谱减法抑噪性能相当,它们对高斯白噪声和高斯有色噪声的抑制能力相当。
参考来源 - 非线性信道传输的码元识别方法研究Six kinds of spectrum subtraction forms are analyzed and simulated in matlab,finally realized with C language. Program is validated separately in VC++6.0 and CCS platform.
本文分析了六种谱减法形式,并利用matlab仿真分析,最后将算法用C语言实现,分别在VC++6.0和CCS平台上进行验证。
参考来源 - 基于DSP管道漏水检测去噪算法的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
非参数方法:如谱减法,自我调节过滤器等。
Parameter Method: such as Wiener filter, Comb filter, Kalman filter and so on.
提出了一个基于最小统计及谱减法的语音增强方法。
In this paper, a speech enhancement approach using minimum estimate and spectral subtraction is proposed.
算法提高了谱减法的适用范围,还在一般谱相减方法的基础上提出了改进的谱相减算法。
The application range of the spectral subtraction is expanded by the new noise estimation method.
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