Description: 1．产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，分别设计三种高通，
低通，带通滤波器对信号进行滤波处理，观察滤波后信号的频谱。
2.采集一段含有噪音的语音信号（可以录制含有噪音的信号，或者录制语音后再加进噪音信号），对其进行
采样和频谱分析，根据分析结果设计出一合适的滤波器滤除噪音信号-1. Produce a continuous signal, including low-frequency, medium frequency, high-frequency components, its sampling, spectral analysis, are designed for three high-pass, low pass, band-pass filter the signal filtering treatment to observe the signal spectrum after filtering. 2. Acquisition section of the speech signal contains noise (can record a signal containing noise, or voice recording, additional noise after the signal), its sampling and spectral analysis, based on an analysis of the results to design a suitable filter to filter out one noise signal Platform: |
Size: 1024 |
Author: |
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Description: 用汉明窗作的语音去噪低通滤波器，matlab程序（自己做的，复制到.m文件，完全可运行）-Hamming window used for speech denoising low-pass filter, matlab program (their own, and copied to. M documents, completely run) Platform: |
Size: 1024 |
Author:hs |
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Description: 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 Platform: |
Size: 150528 |
Author:shelly |
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Description: 这是包含我自己设计的一个低通滤波器和语音信号的处理，程序已经通过编译和仿真。-This is my own design with a low-pass filter and speech signal processing, compilation and simulation programs have been adopted. Platform: |
Size: 3072 |
Author:zhangbaoyan |
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Description: 本程序为一个用matlab实现的语音滤波程序，能计算并显示语音信号的幅频特性，巴特沃斯低通滤波器幅度和相位响应，引入噪声后的幅频特性，以及滤波后的DFT幅频特性。本程序附有语音文件以供试验。-This program is an implementation using matlab voice filtering procedures, can calculate and display the speech signal amplitude-frequency characteristics of Butterworth low-pass filter magnitude and phase response, after the introduction of noise, amplitude-frequency characteristics, as well as the filtered DFT amplitude-frequency characteristics. This procedure for testing with voice file. Platform: |
Size: 4096 |
Author:周峰 |
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Description: 运用低通滤波器，中心削波和自相关技术估计一段男性和女性语音信号的基音周期，画出基音轨迹曲线，给出估计准确率。-The use of low-pass filter, the center clipping and related technologies is estimated from a male and female speech signal pitch period, pitch trajectory drawn curves of estimated accuracy. Platform: |
Size: 1024 |
Author:侍建超 |
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Description: 求离散傅立叶频谱, 重构低通滤波,在噪声环境下语音信号的增强,语音信号为读入的声音文件,噪声为正态随机噪声-Discrete Fourier spectrum seeking to reconstruct low-pass filter, the noise enhancement of speech signals, speech signal is read into the sound file, the noise is normal random noise Platform: |
Size: 5120 |
Author:孙艳 |
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Description: 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 Platform: |
Size: 2048 |
Author:柳沐璇 |
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Description: 这是一个对语音信号(0.3kHz~3.4kHz)进行低通滤波的C语言程序。低通滤波的截止频率为800Hz，滤波器采用19点的有限冲击响应FIR滤波。-This is a speech signal (0.3 kHz to 3.4 kHz) to low pass filtering of C language program. Low pass filter cutoff frequency for 800 Hz, filter adopting the shock response limited 19 points FIR filter.
Platform: |
Size: 16384 |
Author:东平 |
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Description: 本程序源码界面实现的是在MATLAB下的语音信号处理理，使用是巴特沃斯低通滤波器 可直接使用。 已通过测试。
-The source interface of the program implemented under the MATLAB speech signal processing management, the use of a Butterworth low-pass filter can be used directly. Has been tested. Platform: |
Size: 4096 |
Author:一群舰队 |
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Description: FIR低通滤波器设计，运行通过，通过改变滤波器参数，可以得到不同阶数的滤波器，加有随机噪声的语音信号通过滤波器后会有很大改善。-FIR low-pass filter design, to run through, can be obtained by varying the filter parameters, the number of filters of different orders, and added with the random noise of the speech signal through the filter will be greatly improved. Platform: |
Size: 3447808 |
Author:jwshi |
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Description: Low-pass filters allow the low frequency components of an input signal to pass through while attenuating (reducing) high frequency components. Measurement noise fall into the high frequency range of the signal spectrum, while the underlying process signal usually lies towards the low frequency end. Thus filters that are used to remove noise from measurements are of the low-pass types.
This program uses Chebyshev FIR low pass filter based on antenna theory approach to filter noise from human speech signal. Platform: |
Size: 36864 |
Author:Nameless |
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Description: 进入实验界面后，按“输入语音信号”按钮，录入语音信号的数据。对数据进行频谱分析，给出语音信号的波形图和频谱图。设置系统的截止频率，选择给定的系统类型，建立系统函数，并画出系统的频响图。
5. 语音信号频谱与滤波器频响相乘（即对语音信号进行高、低通滤波），得到输出信号的频谱，将所得结果经过傅里叶反变换函数变换为时域信号，绘出处理后信号的波形图，并分别存档。-Into the experimental interface, press " input speech signal" button, input speech signal data. Spectral analysis of the data, given the speech signal waveform and frequency spectrum. Set the system' s cutoff frequency, select a given type of system, the establishment of the system function, and draw the frequency response of the system diagram. 5 of speech signal spectrum by multiplying the filter response (i.e., the voice signal is high, the low-pass filter), to obtain the spectrum of the output signal, the result after the inverse Fourier transform function into a time domain signal plot Processing After the signal waveform, and were filed. Platform: |
Size: 471040 |
Author:chen |
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Description: 用matlab记录一段基带语音信号，采样频率设为44.1kHz。产生一个高斯白噪声
随机过程，并将噪声叠加在语音信号上（相当于将语音信号通过一个高斯信道）。
（1） 设定不同的噪声信噪比，画出并比较高斯信道接收端的信号时域波形，播
放接收信号。
（2） 由于语音信号的范围通常在3kHz以内，在接收端加载一个低通滤波器，
截止频率为3kHz，画出并比较滤波前后的信号时域波形，并播放滤波后
的信号。-Matlab record with some baseband voice signal, the sampling frequency is set to 44.1kHz. Generating a Gaussian white noise
Random process, and the noise superimposed on the speech signal (corresponding to the speech signal through a Gaussian channel).
(1) set different noise SNR, draw time-domain waveform signal and compares the receiving end of a Gaussian channel, broadcast
Put the received signal.
(2) Because of the voice signal is usually less than 3kHz, is loaded at the receiving end of a low-pass filter,
Cutoff frequency of 3kHz, draw time-domain waveform signal and compare before and after filtering, the filtered and play
Signal. Platform: |
Size: 1024 |
Author:赵嘉琦 |
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Description: Digital band-pass filter design, digital low-pass filter design, the digital noise signal is filtered out of the frequency band, spectrally move to restore the speech signal through a low pass filter Platform: |
Size: 93184 |
Author:jimz |
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Description: 使用matlab语言对一段语音信号进行滤波处理，首先分析时域信号，之后进行傅立叶变换，转换成频域，使用巴特沃斯低通滤波器去除高频部分。-Use matlab language of a voice signal is filtered first time domain signal after the Fourier transform is converted into the frequency domain, using a Butterworth low-pass filter to remove high-frequency part. Platform: |
Size: 122880 |
Author:王迁 |
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