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matlab对wav文件进行频谱分析,并得出频谱图-matlab wav file, spectral analysis, and draw spectrogram
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傅里叶变换在MATLAB中的实现,对正选信号仿真,画出其频谱图。-Fourier transform in MATLAB realization of positive selection signal simulation, draw the spectrogram.
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是信号与系统课程的课程设计,旨在熟悉FFT 的计算过程,结合DFT 物理意义和实验结果加深
对傅立叶变换的理解。文章首先用MATLAB 对一个简单信号进行FFT 仿真,得出频谱图;其次完成了FFT 的C 语言实现,结合MATLAB 作图及数据处理功能得出了C 实现下的FFT 结果;最后,讨论分析实验结果。-Curriculum design, signals and systems courses designed to familiar FFT calculation process, t
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matlab编程,画出一段语音的语谱图,在不同时间声音的不同频率,可以比较出有声段和无声段的能量不同。-Matlab programming, draw the spectrogram of a voice, the sound of different frequencies in different time, you can compare audio segment and the energy of the silent segment.
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用MATLAB生成语谱图成序,语音信号随时间变化的频谱特性可以用语谱图表示。-Using MATLAB to generate a sequence spectrogram, speech signal time-varying spectra spectral characteristics can be expressed terminology.
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实现物种功能的语音处理:倒谱、时域、频谱、语谱图以及功率谱,并加有详尽的注释。另外还可以保存图像,一倍后来研究!matlab GUI编程-Voice processing functions to achieve species: cepstrum, time domain, frequency spectrum, spectrogram and power spectrum, and add detailed comments. It also can save the image, doub
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基于matlab的DTMF数字拨号音合成,通过的简单的时域连接,用于进一步分析合成效果。DTMF2是分析部分,用于显示时域波形,频谱图和语谱图。-Based on the synthesis matlab DTMF digit dialing tone, and connected by a simple time domain, for further analysis synthesis results. DTMF2 the analysis section, time-domain wav
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Simulink® and Stateflow® model of a full duplex Bluetooth communication link transmitting HV1, HV2, HV3, and SCORT [1] voice packets, and DM1 data packets. A system parameters block configures the whole model s packet type, slot pair and chan
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spectrogram generation and using matlab for students and new learners and understanding of spectrogram concept-spectrogram generation and using matlab for students and new learners and understanding of spectrogram concept
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(MATLAB) On the companion website, you will find in the directory Chap exercises/chapter3 a
workspace ex3M2.mat. In this workspace, you will find waveforms of the words “we” and “be” (at
10000 samples/s) in the array we be 10k. The waveforms and
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Splice out the voiced plosive “b” in theword “be” and synthesize aword with an increase in the
voice onset time of the “b.” What is the perceptual effect? Is it possible to transform the voiced
plosive “b” to the unvoiced plosive “p” with this ch
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MATLAB软件平台下,利用函数wavread对语音信号进行采样,记住采样频率和采样点数;
2)画出语音信号的时域波形,对采样后的语音进行fft变换,得到信号的频谱特性;对语音信号分别加入正弦噪声和白噪声,画出加噪信号的时域波形和频谱图;
3)根据对加噪语音信号谱分析结果,确定滤除噪声滤波器的技术指标,设计合适的数字滤波器,并画出滤波器的频域响应;
4)用所设计的滤波器对加噪的信号进行滤波,在同一个窗口画出滤波前后信号的时域图和频谱图,对滤波前后的信号进行对比,分析信号变化;
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语音信号的语谱图生成函数,function [ ] = spetro(Winsiz, Shift, Base, Mode, Gray),5个参数分别为帧长、帧移、取值门限(一般设为0)、彩色模式、灰度模式-This is a matlab function for creating speech spectrogram.
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STFT和ST变换的基本函数,和一个stft的一个例程-This code computes the Stockwell transform (S-Transform) of a one dimensional series without for loop, thereby making it computationally fast and simple. S-Transform was proposed in 1996. A nice tutorial on S-Transform can
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这是一个原创的SOQPSK调制程序,条理清晰,思路简介。使用了matlab语言书写,且SOQPSK是一种不常见的、比较前沿的调制解调方式。本程序即成功的使用matlab语言实现了SOQPSK的调制,并绘制出了SOQPSK的时域波形图,相位图,频谱图,功率谱密度图,便于初学者学习使用。s-This is an original SOQPSK modulation process, the clarity, Approach. Matlab language used to write and SO
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用于对语音信号处理的matlab程序,可用于语谱图分析,共振峰分析等。(The matlab program for speech signal processing can be used for spectrogram analysis, formant analysis and so on.)
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目前的代码是一个matlab函数,它提供给定信号x[n]的短时傅立叶变换(stft)。该函数是matlab命令“光谱图”的一个替代项。功能输出为:
1)一个具有复杂stft系数的矩阵,该矩阵具有跨列时间和跨行频率;
2)频率矢量;
3)时间矢量。
为了阐明函数的用法,给出了一个示例。为了方便起见,输入和输出参数在函数的开头给出。(The present code is a Matlab function that provides a Short-Time Fourier Transfor
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