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1.录制一段自己的语音信号,并对录制的信号进行采样;
2.画出采样后的语音信号的时域波形和频谱图;
3.给定滤波器的性能指标,采用窗函数法和双线性变换法设计滤波器,
并划出滤波器的频域响应;
4.用该滤波器对采集的信号进行滤波,画出滤波后信号的时域波形和频谱,
并对滤波前后的信号进行对比,分析信号的变化;
5.回放语音信号;
6.设计一个信号处理系统界面-1. Recorded their own voice for some signal, and
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递归最小二乘滤波器算法,包含对于单频正弦信号和实际语音信号的处理结果-Recursive least squares filter algorithm, that contains the single-frequency sinusoidal signal and the actual voice signal processing results
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输入自己事先录制好的语音信号,该程序实现将语音信号通过FIR低通、高通、带通滤波器后还原出来的语音质量-Enter their own pre-recorded speech signal, the program will realize voice signal through the FIR low-pass, high pass, band-pass filter to restore them after the voice quality
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这个是多带谱语音检测,多带谱不仅具有谱熵的有点,还具有能量分析的有点,所以检测的效果很好!-This is a multi-band spectra of voice activity detection, multi-spectral bands not only has a bit of entropy, also has a bit of energy analysis, so the effect of a very good test!
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是用matlab编译的wiener滤波器,实现噪声的消除和语音质量的提高-Is compiled matlab wiener filter, to achieve noise cancellation and voice quality improvement
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MATLAB语音滤波,使用MATLAB仿真模拟滤波器对语音信号进行滤波-MATLAB voice filtering, use the MATLAB simulation filter to filter the speech signal
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本文分析了语音数字信号的采集来源以及其预处理。通过实例,利用Matlab对语音信号进行时频变换与分析,同时构造一个固定频率的干扰信号,对两个信号进行合成,设计数字滤波器,实现对语音信号的F IR、IIR滤波处理,最后在时域和频域中对信号进行分析比较。-This paper analyzes the sources of voice digital signal acquisition and its pretreatment. By example, voice signals using Ma
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对录音信号集 中的某一语音,利用BATLAB设计一美尔例谱算法,并实现。
取信号集 中的一个语音信号:“xxxxxx”,将它作为输入的语音信号来为设计一个美尔倒谱算法,在该算法中,主要设计了以下环节:
1.读入一个语音信号;2.对这个信号归一化;3.对归一化的信号进行加窗处理(这里的矩形窗长度必须为257,重帧长64);4.进行预加重处理,即通过一个高通滤波器: ;5进行512点的FFT;6.分别取模平方得到功率谱;7.在设计的mel滤波器组中,我采用了25个带通滤波器;8.将得到的功率
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1.录制一段自己的语音信号,对录制的信号进行采样 画出采样后语音信号的时域波形和频谱图 给定滤波器的性能指标,采matlab设计数字滤波器,并画出滤波器的频率响应 然后用自己设计的滤波器对采集的信号进行滤波,画出滤波后信号的时域波形和频谱,并对滤波前后的信号进行对比,分析信号的变化 回放语音信号。2.-1. Recorded his voice for some signal, the signal is sampled on the record draw sampled speech si
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该程序主要也是针对滤波器设计的,实现了对一个语音信号的滤波处理-The program is largely designed for the filter, the realization of a voice signal filtering
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FIR语音滤波的MATLAB 程序,附带噪声的音频,和消噪后的音频,-MATLAB FIR filtering process voice, with the noise of the audio, and denoising of audio,
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基于MATLAB的语音滤波器,通过MATLAB使原来的语音信号分别进行带通,高通,低通滤波,得到更好的效果-MATLAB-based voice filter through the MATLAB so that the original speech signal, respectively, for band-pass, high pass, low pass filter, to get better results
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粒子,粒子滤波,并且又在matlab中进行语音识别,-Particles, particle filter, and another for voice recognition in matlab,
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基于MATLAB的语音信号分析与处理。
录制一段自己的语音信号,用窗函数法和双线性变换进行滤波器,并对滤波前后的信号进行对比;回放语音信号。
-MATLAB-based voice signal analysis and processing. Record a voice signal, window function method and the bilinear transform filter, and before and after filtering the signal
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matlab gui 界面完成了对语音信号的播放滤波等操作 可实现快进快退自主选择文件等功能-voice filter
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对matlab自带鸟叫声音信号加白噪声后进行维纳滤波处理,分为时域方法和频域方法,适合新手。-Birds carried on matlab voice signal comes after white noise Wiener filter, into the time domain methods and frequency domain methods, suitable for novices.
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语音信号经过低通,高通,带通,带阻四个滤波器,比较滤波前后的功率谱,以及去噪能力-Voice signal through the low-pass, high-pass, band-pass, four band-elimination filter, compared before and after the power spectrum of the filter, and the denoising ability
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制一段个人自己的语音信号,并画出该信号的时域波形和频谱图;再录制一段同样长时间的背景噪声叠加(加法叠加)到语音信号中,分析叠加前后信号频谱的变化;设计一个合适的滤波器,把改造生滤除;最后回放语音信号。(peech signal processing for a period of one's own, and draw the signal time-domain waveform and frequency spectrum; background noise superimposed and
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基于MATLAB GUI 设计的数字信号处理系统,可以实现基本的信号生成,信号分析和信号滤波以及简单的语音信号处理等功能。其中信号生成模块可实现正弦波、方波、三角波、高斯白噪声、chrip信号的生成和叠加;信号分析模块支持基本的傅氏变换下的频域分析功能;信号滤波模块可以实现数字低通、高通、带通、带阻下的切比雪夫、巴特沃思、椭圆滤波器的设计和滤波处理;语音信号处理模块可以实现音频文件的读取、播放、叠加噪声、滤波等功能。(Based on MATLAB GUI design of digital s
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基于MATLAB 的语音信号频谱分析与去噪研究
1、通过Matlab读入语音信号,进行频域分析
2、绘制语音信号频谱;
3、设计滤波器并进行滤波;
4、加噪,对比语音信号波形和频谱(Research on speech signal spectrum analysis and denoising based on MATLAB
1, read the voice signal through Matlab and analyze it in frequency domain.
2, draw t
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