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Description: Mobile phones are constantly decreasing in size, thereby complicating the acoustical
functionality. Signal processing methods can be used to partially mitigate
this problem. In this paper we suggest a method which uses multiple spectral
subtraction functions and two microphones, introducing only a short signal delay.-Mobile phones are constantly decreasing i n size, thereby complicating the acoustical function ality. Signal processing methods can be used to partially mitigate this problem. In this paper we suggest a method which uses multiple spectra l subtraction functions and two microphones. introducing only a short signal delay.
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Size: 447371 |
Author: john |
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Description: 计算ARMA(p，q)模型的功率谱密度。
形参说明：
b——双精度实型一维数组，长度为(q+1),存放ARMA(p，q)模型的滑动平均系数。
a——双精度实型一维数组，长度为(p+1),存放ARMA(p,q)模型的自回归系数。
q——整型变量,ARMA(p,q)模型的滑动平均阶数。
p——整型变量,ARMA(p,q)模型的自回归阶数。
sigma2——双精度实型变量,ARMA(p,q)模型白噪声激励的方差。
fs——双精度实型变量,采样频率(Hz)。
x——双精度实型一维数组,长度为len。当sign＝0时，存放功率谱密度；当sign＝
1时，存放用分贝表示的功率谱密度。
freq——双精度实型一维数组，长度为len。存放功率谱密度所对应的频率。
len——整型变量，功率谱密度的数据点数。
sign——整型变量,当sign＝0时，计算功率谱密度；当sign＝1时，计算用分贝表
示的功率谱密度。
-calculated ARMA (p, q) model of the power spectral density.- Participation : b-- double-precision real one-dimensional arrays, length (q 1), storage ARMA (p, q) model of the average coefficient of sliding. A-- double-precision real one-dimensional arrays, length (p 1), storage ARMA (p, q) model of regression coefficients. Q-- integer variables, ARMA (p, q) moving average model of order. P-- integer variables, ARMA (p, q) model of order since the reunification. Sigma2-- double precision real-type variables, ARMA (p, q) model white noise variance. Fs-- double precision real-type variables, sampling frequency (Hz). X-- double-precision real one-dimensional array, the length of len. When the sign = 0, storage power spectral density; When the sign = 1:00, storage decibel levels, said th
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Size: 23552 |
Author: lkz |
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Description: 给定入射信号角度分别为 -22度 ，6度，18度时，不同信噪比情况下各种空间谱估计算法得到的曲线图-given incident signals point to-22 degrees, 6 degrees, 18 degrees, the signal to noise ratio under different space spectral estimation algorithm of the curve
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Size: 3072 |
Author: 许晓凡 |
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Description: 谱减法算法，可以用来对有噪声的语音去噪，提高识别率。-spectral subtraction algorithm can be used to the noise of a voice denoising, and improve recognition rates.
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Size: 1024 |
Author: 覃美凤 |
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Description: 谱减法去除语音噪声的c语言程序1。。。效果还可以 。推荐大家下载。-spectral subtraction to remove noise c Speech Language Program 1. . . Effects can. Suggest you download.
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Size: 5120 |
Author: |
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Description: 这是标准谱减算法和小波阈值降噪方法，虽然效果不太好，但是作为经典降噪方法，还是有很高的参考价值，也是此类文献引用最多的方法。-This is the standard spectral subtraction and wavelet thresholding method of noise reduction, although results are not good, But as a classic noise, or a high reference value, such literature is the most used method.
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Size: 1024 |
Author: yaohua |
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Description: Mobile phones are constantly decreasing in size, thereby complicating the acoustical
functionality. Signal processing methods can be used to partially mitigate
this problem. In this paper we suggest a method which uses multiple spectral
subtraction functions and two microphones, introducing only a short signal delay.-Mobile phones are constantly decreasing i n size, thereby complicating the acoustical function ality. Signal processing methods can be used to partially mitigate this problem. In this paper we suggest a method which uses multiple spectra l subtraction functions and two microphones. introducing only a short signal delay.
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Size: 452608 |
Author: john |
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Description: 谱减法是一种比较简单的语音降噪的方法，在语音信号具有较高的信噪比的情况下具有良好的降噪功能。-Spectral subtraction is a relatively simple method of noise reduction voice in the voice signal with higher signal to noise ratio case has a good noise reduction function.
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Size: 221184 |
Author: 张通 |
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Description: 利用谱减法进行语音去噪！有语音读入功能，适合于进行与语音叠加的噪音的去除!-Using spectral subtraction de-noising voice! Has voice read function, suitable for stacking with the voice of the removal of the noise!
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Size: 1024 |
Author: wenhu |
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Description: 基于多窗谱法功率谱估计的谱减法语音增强程序，多窗谱功率谱估计比传统的周期图法方差效果更好，抑制音乐噪声效果更佳。
该程序对语音增强入门的研究者有参考意义。-Spectrum method based on multi-window power spectral estimate of spectral subtraction speech enhancement procedures, multi-window spectral power spectrum estimation than the traditional periodogram variance better suppress noise better music. The procedure entry on speech enhancement researchers have reference value.
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Size: 2048 |
Author: 武月 |
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Description: 谱减法降噪的具体实现，效果还行，给大家参考一下-Spectral subtraction noise reduction to achieve specific results also visit to the U.S. reference
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Size: 5120 |
Author: 黄珺 |
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Description: 基于lms的改进型谱减法，降低噪声效果好-Improved LMS-based spectral subtraction, noise reduction effect
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Size: 26624 |
Author: wanghang |
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Description: 另一种谱减法的应用，有效的去除噪声的影响-Another application of spectral subtraction and effective removal of noise
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Size: 147456 |
Author: wanghang |
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Description: 在强噪声环境下，说话人话音受到很强烈的干扰，语音增强是很有必要的。在TDS5410-TDK实验板，实现了谱衰减算法。主要包括有声/无声检测算法、发送/接收缓冲区的调度、语音降噪算法。试验结果表明，其降噪效果明显，试听效果较好。
-In strong noise environment, the speaker voice by the very strong interference, speech enhancement is necessary. TDS5410-TDK experiments in panels, to achieve a spectral attenuation algorithms. Include audio/silence detection algorithm, Send/Receive buffer scheduling, voice noise reduction algorithm. The experimental results show that the effect of its noise reduction obviously, listen better.
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Size: 25600 |
Author: chenziqiang |
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Description: Boll的语音频谱相减法来抑制噪声。附有程序和Boll:Suppression of Aoustic Noise in Speech using Spectral Substraction一文。-Boll voice spectrum subtraction to suppress noise. With the procedures and Boll: Suppression of Aoustic Noise in Speech using Spectral Substraction article.
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Size: 814080 |
Author: 宋知用 |
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Description: MATLAB环境下对于含平稳噪声的带噪语音利用谱相减算法进行处理，原始语音请命名为“origin.wmv"，处理后的语音为”enhanced.wmv"。rar内含有我自己做好的语音处理结果，可以用你自己的待处理语音替换它们，请放在同一目录下！-MATLAB environment containing stationary noise for Noisy Speech using spectral subtraction algorithm for processing, the original voice please named origin.wmv , after the voice for enhanced.wmv . rar contains my own voice to do a good job dealing with the results, you can use your own voice to be processed to replace them on the same directory, please!
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Size: 302080 |
Author: xx |
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Description: 波形和频谱双显示
记录讲话直接进入MATLAB
手动分割讲话波形-创建标签文件
波形编辑-切割，复制或粘贴
共振峰分析-显示共振轨道的F1 ， F2和F3
基音分析
过滤工具-语音信号滤波器截止频率
比较工具-比较两个波形的频谱距离使用几种措施
增加噪声-Dual time-waveform and spectrogram displays
Records speech directly into MATLAB NEW
Displays time-aligned phonetic transcriptions [e.g., TIMIT s .phn files]- see example Figure above
Manual segmentation of speech waveforms- creates label files which can be used to train speech recognition systems
Waveform editing- cutting, copying or pasting speech segments
Formant analysis- displays formant tracks of F1, F2 and F3
Pitch analysis
Filter tool- filters speech signal at cutoff frequencies specified by the user
Comparison tool- compares two waveforms using several spectral distance measures
Speech degradation- adds noise to the speech signal at an SNR specified by the us
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Size: 1180672 |
Author: wsw |
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Description: 谱减法实现语音的降噪，经典的谱减法-Voice achieve spectral subtraction noise reduction, the classical spectral subtraction ~ ~ ~
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Size: 1024 |
Author: 曹兵 |
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Description: 一种基于改进谱减法的语音去噪新方法.pdf-Based on improved spectral subtraction speech denoising new method. Pdf
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Size: 240640 |
Author: dodogun |
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Description: 学习并找到降噪方法，对语音信号背景噪声做处理，使得声音更清晰。-The background noise is the most common factor degrading the quality and intelligibility of speech in recordings. Spectral subtraction can lower the noise level without affecting the speech signal quality. In this paper, we have studied and implemented to reduce the background noise of the voice signal, and to make improvements to reduce the background noise of the experiment. Not only with the spectral subtraction of the noisy signal of the transformation, we improve the traditional spectral subtraction based on the introduction of the parameters, by adjusting the parameters(α、β、γ) to achieve better enhancement.
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Size: 398336 |
Author: zhangqing |
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