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0下载:
英文书《Digital Signal Processing with Examples in MATLAB》附带的MATLAB实例-English book
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小波变换处理带噪语音信号,对于低信噪比的情况下相当有效,直接改文件名就可完成-Wavelet Transform of Noisy Speech signal processing for low SNR case quite effectively, direct to the file name can be completed
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语音增强是语音信号处理的重要分支,本程序用小波变换实现-Speech enhancement speech signal processing is an important branch, the procedures for implementation of Wavelet Transform
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语音信号处理的最基本的Maylab处理程序,包括读入语音波形,清音浊音的检测,加窗,过零率,短时能量,基音最大值。最后有test给出演示-Speech Signal Processing Maylab the most basic treatment procedures, including read into the voice waveform, voiceless voiced detection, add windows, zero-crossing rate, short-term
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In this project we have processed the speech signal with the help of the DIGITAL SIGNAL PROCESSING techniques. The speech signal is given as the input will be verified using speech recognition technique using matlab. We have used Mel Frequency Cepstr
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语音信号处理中基音周期的提取算法,用线性预测的基本算法原理,matlab实现。-Speech signal processing in pitch extraction algorithm, the basic algorithm with linear prediction theory, matlab implementation.
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观测实时模拟信号(语音)的频谱
用音频设备采集一段语音,将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的,应把它分段分析,而且实际运用中的数字信号处理的FFT的点数是有限的,一般只能达到千点。用傅里叶反变换IFFT,从频域恢复信号。画出频谱图和语音波形图。
-Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of
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信号频谱分析
1. 观测已知方波信号、正弦波信号的频谱
分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。
2. 观测实时模拟信号(语音)的频谱
用音频设备采集一段语音,将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的,应把它分段分析,而且实际运用中的数字信号处理的FFT的点数是有限的,一般只能达到千点。用傅里叶反变换IFFT,从频域恢复信号。画出频谱图和语音波形图-Signal spectrum analysis
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信号频谱分析
1. 观测已知方波信号、正弦波信号的频谱
分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。
观测实时模拟信号(语音)的频谱
用音频设备采集一段语音,将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的,应把它分段分析,而且实际运用中的数字信号处理的FFT的点数是有限的,一般只能达到千点。用傅里叶反变换IFFT,从频域恢复信号。画出频谱图和语音波形图-Signal spectrum analysis 1.
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对原始语音进行上采样和下采样,分析对比他们的时域图和频谱图。最后对比原始语音、75HZ激励、150HZ激励以及噪声激励下的效果-SOME SIMPLE MANIPULATIONS OF SOUND USING DIGITAL SIGNAL PROCESSING
The original sound and its spectrogram
Downsampling the waveform
downsampling
Upsampling the waveform
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语音信号处理:This package encloses a small application dedicated to speech signal processing
at 8 kHz or 16 kHz. This application reads standard *.wav or *.pcm files through UI dialog box, plots and plays the signal with vertical dynamic crosshairs.-This
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Based on the spectrum of the vuvuzela sound, this denoising technique simply computes an antenuation map in the time-frequency domain. Then, the audio signal is restored by computing the inverse STFT. See [1] or [2] for more detail about the algorith
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语音信号处理中的,小波变换去噪基本算法的源程序,对初学者有一定的参考价值。-Speech signal processing, wavelet transform denoising basic algorithm of the source, for beginners with some reference value.
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用matlab处理声音文件,详细讲述了从录音到成离散信号的过程。对matlab初学者很有帮助。-Sound files with matlab processing, from recording to detail into discrete signals. Matlab helpful for beginners.
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语音信号处理中挺实用的程序,用MATLAB实现LPC谱的分析,对初学者很有用处。-Very useful program in speech signal processing, with MATLAB implementation LPC spectrum analysis, useful for beginners.
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用matlab读取一个语音信号,对其进行变调,回音灯各种处理的设计报告,含代码与仿真图-Reads a speech signal with matlab, its tone, design reports echo lamp various treatments, including code and simulation map
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1. 给一段原始的语音信号(可以是自己录制的一段语音),加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声(幅度自己可以选择),用窗函数设计一滤波器(要求最小阻带衰减为50dB)对加噪后的语音信号进行滤波,画出滤波器的频率响应曲线,画出滤波前后的时域图和频谱图。
需要用到的函数:
fir1 用窗函数设计FIR滤波器的函数
2. 用GUI设计一界面(如图1所示)完成如下功能:
1) 输入一语音信号,画出语音信号的时域图和频谱图;
2) 对语音信号加噪处理,
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用MATLAB编写语音信号,语音信号的处理包括预加重,滤波等,这是岁随机信号进行了一个讲解-Write the speech signal with MATLAB, speech signal processing, including pre-emphasis, filtering, etc. This is the age of a random signal was explained
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语音信号处理,分别用汉明窗和矩形窗对语音信号经行处理的C语言调试和用matlab画图展示-Speech signal processing, respectively, with rectangular window and Hamming window of speech signal processing by the line of C language debugging and drawing impressions with matlab
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语音信号处理,通过用基因检测男生和女生,用c语言编程调试语音信号,用matlab画图进行结果对比-Speech signal processing, by genetic testing of boys and girls, with the c language programming and debugging voice signal, comparing the results with matlab drawing
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