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Description: 声音的傅立叶变换演示
提供了matlab下的函数接口-voice of the Fourier Transform provides a demonstration of Matlab interface function
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Size: 49622 |
Author: 周贤 |
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Description: MFCC,即倒谱系数，也是语音的一个特征之一，能够充分利用人耳的特性
％ 具体的求法就是预处理，然后加窗，进行傅立叶变换，再求出功率普
％ 然后得出其自然对数，最后进行dct变换
％ 代码是用matlab写的，用到的一个语音工具箱，可以从网络上下载。-MFCC, that is, just a few pedigree, as well as a voice of one, to take full advantage of people's ears% of the specific characteristics of the solution is pretreatment, then increasing the window, Fourier transform, another sought power pu% then come to its natural logarithm, culminating transform% Extra code is written in Matlab. use of a voice box can be downloaded from the Internet.
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Size: 1040 |
Author: 杨海 |
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Description: 运用matlab工具对语音信号处理的几个方面：短时能量、端点检测、和功率谱及短时傅立叶变换特性作了简单的分析。-use Matlab tool for voice signal processing areas : short-term energy and endpoint detection, and the power spectrum and the characteristics of short-time Fourier transform with a simple analysis.
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Size: 1211 |
Author: 王珠 |
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Description: 基于MATLAB心脏声音波形处理(频谱分析及短时付立叶变换)-voice waveform processing (short-time spectrum analysis and Fourier transform)
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Size: 1598 |
Author: Li bin |
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Description: 对两个声音进行傅利叶变换，利用A声音的相位和B声音的幅度进行组合，合成一个新的声音-two voices right for Fourier transform, using the voice of the A and B phase margin voice of the portfolio, Synthesis of a new voice
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Size: 309662 |
Author: 无声泉 |
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Description: mablab语音信号处理，包括波形产生，滤波器分析，滤波器实现，傅立叶变换，Z变换，等语音处理程序-mablab speech signal processing, including waveform generator, filter, filter, Fourier transform, Z transform, and other voice processing
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Size: 5025 |
Author: 任飞 |
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Description: 语音频谱分析。通过快速fu付立叶变化画出语音频谱-voice spectrum analysis. Fu fast Fourier spectrum voice changes paint
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Size: 53886 |
Author: 张春民 |
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Description: 语音频谱分析。通过快速fu付立叶变化画出语音频谱-voice spectrum analysis. Fu fast Fourier spectrum voice changes paint
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Size: 53248 |
Author: 张春民 |
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Description: 基于MATLAB心脏声音波形处理(频谱分析及短时付立叶变换)-voice waveform processing (short-time spectrum analysis and Fourier transform)
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Size: 1024 |
Author: Li bin |
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Description: 基于matlab的短时傅立叶变换，有语音读取功能！-Based on the short-time Fourier transform matlab, have voice reading!
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Size: 1024 |
Author: wenhu |
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Description: 语音降噪。从Codec AD50采集话筒语音，通过DSP TMS320vc5402处理，在送到AD50输出降噪后语音，涉及加汉宁窗，切比雪夫滤波器，快速傅立叶变换和反FFT，有声无声判断谱分解，谱合成等功能-Voice noise. Codec AD50 collected from the microphone voice, through the DSP TMS320vc5402 treatment, in AD50 to the output noise after the voice, involve Hanning windows, Chebyshev filter, Fast Fourier Transform and anti-FFT, audio silent judge spectral decomposition, spectral synthesis and other functions
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Size: 44032 |
Author: 黄胜华 |
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Description: Using the function to sample the voice signal and achieve fast Fourier transform in MATLAB, and then get the signal characteristics of the spectrum.Filtering the signal from the filter,and then playback the signal of voice
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Size: 72704 |
Author: 林霞 |
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Description: 基于不变集多小波的语音特征参数提取研究 用小波变换替代傅立叶变换和梅尔滤波-Based on the invariant set Multiwavelet voice characteristic parameter extraction for research of wavelet transform and Fourier transform alternative Mel filter
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Size: 1161216 |
Author: 王岐学 |
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Description: 基于短时傅里叶变换实现对语音频谱的分析
（分别对清音和浊音进行分析）。-Based on short-time Fourier Transform of the voice spectrum analysis (respectively, pairs of voiceless and voiced for analysis).
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Size: 132096 |
Author: pop |
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Description: 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. Observing a known square-wave signal, sine wave signal frequency spectrum analysis 4KHz, 8KHz for the 50 duty cycle square wave signal, sine wave signal frequency spectrum. The recorded frequency spectrum. Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of voice, voice saved as. Wav format. Wav file of the sub-Fourier transform analysis to make. Speech is divided into syllables, it should be sub-analysis, and practical application of digital signal processing of the FFT points is limited, generally only reach 1000 points. Fourier inverse transform IFFT, to restore the signal from the frequency domain. Draw maps and voice waveform spectrum
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Size: 94208 |
Author: benny |
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Description: Frequency Analyzer.
Whistle a melody and watch this program graph the pitch in real time. The Frequency Analyzer (download now) technically speaking performs a Fast Fourier Transform of the sound (you need a sound card and a microphone to use this program). What it means is that it analyzes your voice and splits it into its component frequencies. Watch patterns of speech, the harmonics of vowels and the noise of sibilants. The size of the program is only 148k! (zipped 74k) Can you believe that?! There are web pages that make you download more than that just to be able to look at them.
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Size: 122880 |
Author: kapa |
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Description: 語音信號是基於時間軸上的一維數位信號，在這裏主要是對語音信號進行頻域上的分析。在信號分析中，頻域往往包含了更多的資訊。對於頻域來說，大概有8種波形可以讓我們分析：矩形方波，鋸齒波，梯形波，臨界阻尼指數脈衝波形，三角波，餘旋波，余旋平方波，高斯波。對於各種波形，我們都可以用一種方法來分析，就是傅立葉變換：將時域的波形轉化到頻域來分析。-Voice signal is based on the timeline of one-dimensional digital signal, where mainly the speech signal in frequency domain analysis. In signal analysis, frequency domain often contains more information. For the frequency domain for about 8 allows us to analyze waveforms: rectangular square wave, sawtooth, trapezoidal wave, the critical damping index pulse, triangle wave, I spin wave, I spin square wave, Gaussian. For all waveforms, we can analyze in a way that is Fourier transform: the transformation of time domain waveform into the frequency domain to analyze
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Size: 133120 |
Author: 林志強 |
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Description: matlab 基本语音处理，可以实现基本音乐的输入，并做傅里叶变换进行频谱分析-matlab basic speech processing, can achieve basic music input, and to do Fourier transform spectrum analysis
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Size: 135168 |
Author: tianjian |
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Description: DRP ENCRYPTIO
VOICE
PHOTO
QUALITY MEASUREMENTS
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Size: 1024 |
Author: elsayed elshamy |
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Description: 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 the frequency spectrum of speech signal;
3. The filter is designed and filtered.
4. Add noise and compare the waveform and spectrum of speech signal)
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Size: 26485760 |
Author: malvina |
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