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谱减法     
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  spectral subtraction
     Following performance analysis of vehicle vertical dynamic load(VVDL)resulted from road inspiritment and engine vibration,spectral subtraction method is proposed to eliminate the cyclic noise in VVDL used in road roughness recognition.
     分析了路面激励和发动机振动引起的汽车垂直动载的特点,提出了采用谱减法去除用于路面不平度识别的垂直动载中周期性噪声的方法.
短句来源
     In speech communication environments often occurs the situation that the speech signal is superposed by background noise. To overcome it we implement a speech enhancement system with Extended Spectral Subtraction(ESS) algorithm on TMS320VC5410 DSP.
     针对语音通信经常受到背景噪声干扰的问题,本文采用扩展谱减法(ExtendedSpectral Subtraction)在TI公司的TMS320VC5410DSP芯片上实现语音增强系统。
短句来源
     Using the spatial sampling of the beamformer,the proposed method attenuates the noise from different directions of arrival by time delay compensation for speech signal. A spectral subtraction based on masking threshold is used to suppress the residual noise.
     该方法首先通过波束形成器的空间滤波作用,将波达方向不同的语音信号和噪声信号加以区别,再经过延时补偿单元的相应处理,从而达到衰减噪声的目的,然后采用谱减法对波束形成器输出端的残留噪声进行后置处理.
短句来源
     Mass speech enhancement arithmetic, such as self-adaptive filter, spectral subtraction, need to estimate noise accurately.
     大多数语音增强算法,例如谱减法,自适应滤波等方法,都需要正确地估计噪声。
短句来源
     Among of many algorithms spectral subtraction method has been one of the most well known techniques for noise reduction because it is simple and effective.
     在众多的语音增强算法中,谱减法(Spectral Subtraction)由于其简单有效成为最流行的技术。
短句来源
更多       
  spectrum subtraction
     There are many speech enhancement techniques, such as filtering, correlation of speech, nonlinear processing, spectrum subtraction, and the adaptive Wiener filter.
     语音增强算法,包括滤波法语音增强、利用相关特性的语音增强、非线性处理语音增强、谱减法语音增强、利用Wiener滤波法的语音增强、自适应噪声抵消法语音增强等,我们采用的是目前使用最为广泛的基于短时谱的语音增强算法。
短句来源
     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。
短句来源
     2. It is discussed that wiener, spectral subtraction based on the noise energy spectral estimate and wavelet denoise method. Aim at elimination music background noise, it is imposed that adding weight function which make use of short-time energy and zeros-crossing rate denoise speech secondly that is processed by the spectrum subtraction based on the noise energy spectrum estimate.
     2. 阐述现阶段常用的维纳滤波、基于噪音能量估计的谱减法和小波去噪方法的核心思想和特点,针对基于噪音能量谱估计的谱减法去噪后仍存在音乐背景噪音,提出利用短时能量和短时过零率组合而成的加权函数,进行二次去噪。
短句来源
  spectral subtraction method
     Following performance analysis of vehicle vertical dynamic load(VVDL)resulted from road inspiritment and engine vibration,spectral subtraction method is proposed to eliminate the cyclic noise in VVDL used in road roughness recognition.
     分析了路面激励和发动机振动引起的汽车垂直动载的特点,提出了采用谱减法去除用于路面不平度识别的垂直动载中周期性噪声的方法.
短句来源
     Among of many algorithms spectral subtraction method has been one of the most well known techniques for noise reduction because it is simple and effective.
     在众多的语音增强算法中,谱减法(Spectral Subtraction)由于其简单有效成为最流行的技术。
短句来源
     Taking advantages of both multi model spectral subtraction and noise adaptation, the dynamic adaptation multi model spectral subtraction method can not only cope with the environment of several types of noise, but also make use of the dynamic information of the background.
     动态自适应多模板谱减法是多模板谱减法和噪声动态自适应方法的有效结合 ,使谱减法既能适应环境中存在多种噪声的情况 ,又能有效利用当前得到的噪声环境信息 .
短句来源
     Objective measurements combined with subjective test shows that the proposed method can suppress the residual noise and "musical noise" more effectively than the conventional spectral subtraction method and MMSE method in low signal-to-noise ratio (SNR).
     对增强后的语音客观和主观测试表明:在低信噪比条件下,相对于传统的谱减法和MMSE估计方法,这种改进的方法能更好的抑制背景噪声和残留的“音乐噪声”。
短句来源
     In addition, according to the theory of wavelet transform and the idea of spectral subtraction, a modified spectral subtraction method on wavelet domain is presented in this thesis.
     然后,我们利用小波变换多尺度分析的特性,在小波域的各个尺度上选取不同的阈值对基本的频域谱减法进行改进。
短句来源
更多       
  method of spectral subtraction
     Method of spectral subtraction is used to be compared with the former mothod at last.
     最后,用谱减法去噪和前者做了比较。
短句来源
     What’s more, the transition frames are divided into different groups in detail based on energy. With a further improved method of spectral subtraction, speech frames, transition frames, and noise frames are processed separately to get rid of music noise.
     对谱减法做进一步改进,以能量为基础对过渡帧进行细分,对语音帧、过渡帧、噪声帧分别进行不同的处理,从而克服了令人厌烦的音乐噪声,在强航空噪声背景下,处理后的语音不仅信噪比得到了很大的提高,而且清晰度和可懂度也得到了很大的改善。
短句来源

 

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  spectral subtraction
Repetitive spectral subtraction method for the spectrophotometric determination of rare earth elements
      
A new multiwavelength data-analysis method for the determination of multicomponent mixtures, the repetitive spectral subtraction method (RSSM), is proposed.
      
With the aid of spectral subtraction methods, differences observed between the spectra have been related to the crystalline and mesophase content of the materials.
      
Meanwhile, the method of spectral subtraction developed in Paper 1 has enabled us to separate the spectra of the two components and to show that their spectral types are K0 III and A2m.
      
Since spectra of EDTA-demineralized matrix were similar to those of nonmineralized matrix, the nonmineralized regions of the tendon were used for spectral subtraction.
      
更多          
  spectrum subtraction
On the use of spectrum subtraction in INAA based on short-lived radionuclides
      
Using a simple spectrum subtraction method, the degree of reduction has been measured and compared with previous results for CeO2 and (Ce0.5Zr0.5)O2.
      
  spectral subtraction method
Repetitive spectral subtraction method for the spectrophotometric determination of rare earth elements
      
A new multiwavelength data-analysis method for the determination of multicomponent mixtures, the repetitive spectral subtraction method (RSSM), is proposed.
      
Investigating Speaker Verification in real-world noisy environments, a novel feature extraction process suitable for suppression of time-varying noise is compared with a fine-tuned spectral subtraction method.
      
It also has 6.4 dB gain over the standard spectral subtraction method in speech enhancement.
      
This method outperforms the standard power spectral subtraction method resulting in superior speech quality and largely reduced musical noise.
      
更多          
  subtraction in frequency domain
A method for on-line background subtraction in frequency domain fluorometry
      
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