Description: Rotating shafts experience a an elliptical motion called whirl. It is important to decompose this motion into a forward and backward whil orbits. The current function makes use of two sensors to generate a bi-directional spectrogram. The method can be extended to any time-frequency distribution
％
％ compute the forward/backward Campbell/specgtrogram
％
％ INPUT:
％ y (n x 2) each column is measured from a different sensor
％ ///////
％ __
％ |s1| y(:,1)
％ |__|
％ __
％ / \ ________|/
％ | | | s2 |/ y(:,2)
％ \____/ --------|/
％
％ Fs Sampling frequnecy
％
％ OUTPUT:
％ B spectrogram/Campbel diagram
％ x x-axis coordinate vector (time or Speed)
％ y y-axis coordinate vector (frequency [Hz])
-an experience a elliptica l motion called whirl. It is important to decomp Rose this motion into a forward and backward whil orbits. The current function makes use of two se nsors to generate a bi-directional spectrogra m. The method can be extended to any time-freque ncy distribution% compute the forward/backw ard Campbell/specgtrogram% INPUT : % y (n x 2) each column is measured from a differen t sensor ///////%%% __ | s1 | y (:, 1)% | __ |%% __/\ ________|/% | | | s2 |/y (:, 2)% \ ___/_____/20__--------|/% Fs Sampling frequnecy %% OUTPUT : spectrogram% B/Campbel diagram% x x-axis coor dinate vector (time or Speed)% y y-axis coordin ate vector (frequency [Hz]) Platform: |
Size: 61440 |
Author:yupenghui |
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Description: 波形和频谱双显示
记录讲话直接进入MATLAB
手动分割讲话波形-创建标签文件
波形编辑-切割，复制或粘贴
共振峰分析-显示共振轨道的F1 ， F2和F3
基音分析
过滤工具-语音信号滤波器截止频率
比较工具-比较两个波形的频谱距离使用几种措施
增加噪声-Dual time-waveform and spectrogram displays
Records speech directly into MATLAB NEW
Displays time-aligned phonetic transcriptions [e.g., TIMIT s .phn files]- see example Figure above
Manual segmentation of speech waveforms- creates label files which can be used to train speech recognition systems
Waveform editing- cutting, copying or pasting speech segments
Formant analysis- displays formant tracks of F1, F2 and F3
Pitch analysis
Filter tool- filters speech signal at cutoff frequencies specified by the user
Comparison tool- compares two waveforms using several spectral distance measures
Speech degradation- adds noise to the speech signal at an SNR specified by the us Platform: |
Size: 1180672 |
Author:wsw |
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Description: The matlab code implements the ensemble of decision tree classifiers proposed in: "L. Nanni and A. Lumini, Input Decimated Ensemble based on Neighborhood Preserving Embedding for spectrogram classification, Expert Systems With Applications doi:10.1016/j.eswa.2009.02.072 " Platform: |
Size: 1024 |
Author:loris nanni |
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Description: 为给定的wav文件绘制频谱图（频谱照片）。内附程序及报告书。-Wav files for a given Spectrogram diagram drawing (spectrum photo). Included procedures and report. Platform: |
Size: 125952 |
Author:fashenqq |
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Description: 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
Linear filtering the waveform
Original speech
The source-filter model of speech
Speech with 75-Hz excitation
Speech with 150-Hz excitation
Speech with noise excitation Platform: |
Size: 50176 |
Author:coco |
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Description: matlab中语谱图实现代码，语谱图表示语音信号随时间而变化的谱特性-matlab implementation code in the spectrogram, spectrogram that change over time speech signal spectral characteristics of Platform: |
Size: 79872 |
Author:marui |
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Description: 二维傅立叶变换的Matlab实现，是利用图像处理软件对给
出的图像进行傅立叶变换处理。
自行设计一幅图像，验证离散傅立叶变换的性质，如：
频谱图中高频分量迅速衰减，可分离性，平移，周期性与共
轭对称性，旋转、线性和比例性，平均值。(The Matlab implementation of two-dimensional Fu Liye transform is based on image processing software. The image is processed by Fu Liye transform. An image is designed to verify the properties of the discrete Fu Liye transform, such as: The high frequency components in the spectrogram decay rapidly, separability, translation, periodicity and total. Yoke symmetry, rotation, linearity and proportionality, average.) Platform: |
Size: 2048 |
Author:SmaICG |
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Description: 语谱图反映了语音信号的动态频谱特性，在语音分析中具有重要的实用价值，被称为可视语音。“yuputu”是用matlab完成语谱图的程序(Spectrogram reflects the dynamic spectrum characteristics of speech signals. It has important practical value in speech analysis and is called visual speech. "Yuputu" is a program to complete the spectrogram with MATLAB.) Platform: |
Size: 44032 |
Author:mrlong |
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