搜索资源列表
chirp-audiorecorder
- MATLAB中，chirp扫频产生声音信号，播放同时启动audiorecorder录音，之后对录音做FFT变换并分析其频谱-In MATLAB, chirp sweep signal generating sound, while playing audiorecorder start recording, then do the FFT for recording and analyzing the spectrum
jytz.m
- 求取倒频谱系数，可对声音信号进行分析，是一种特征提取方式-Obtaining cepstral coefficients, can the sound signal analysis, feature extraction is a way
MFCC_success
- 梅尔频谱的应用，处理声音信号，提取声音特征，得到声音特征-Mel spectrum of applications, processing audio signals to extract audio feature to give audio feature
Signal-recognition
- 函数可以作出时域波形图和频域频谱图，并且计算基因频率自动判断音频文件是男声还是女声声音。ds函数输入变量是文件名和降采样的间隔，通过插值的办法保证了原信号的长度，可以画出时域及频域图像，并且判断男女声，最后播放降采样之后的声音-The function can make time-domain waveform and frequency spectrum, and calculate the gene frequency automatically determine the audio fi
sndExample-adv
- Labview基于声卡的频谱分析 声卡采集声音数据,显示其波形,通过滤波器和加窗处理进行功率谱分析-Labview based sound card spectrum analysis Sound card data collection, display its waveform, through the filter and window processing power spectrum analysis
baoluo
- 声音文件进行包络频谱的绘制，对文件进行时域和频域的分析和画图-Sound files for drawing of envelope spectrum, the file in time domain and frequency domain analysis and drawing
kukuoo0
- 具有声音录制，滤波，分析波形，回放波形功能，含有频谱图，相位谱，幅值谱(It has the functions of sound recording, filtering, analyzing waveform and replaying waveform, including spectrum, phase spectrum and amplitude spectrum)
STFFTtool
- 对非平稳信号进行分段、截取，将非平稳信号转化为平稳信号，再做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The non-stationary signals are segmented and intercepted, and then the short-time Fourier transform is used to analyze their frequency spectrum characteristics, and the fre
STFFTtool3
- 对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征，一图像的形式表达出，最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi
soundanalyze2
- 利用matlab进行录音播放，并能够显示声音波形频谱等。(Using MATLAB for recording and playback, and can display sound, waveform, spectrum and so on.)
15810493voice_recognition
- 提取声音基频，对于语音识别和语音频谱分析提供一定便利(Extraction voice frequency)
fft音频
- fft频谱计算 并声音信号 适当的 速度 且测试(122 awq wqw qw qwe qwdasdas da dasd)
psychoacoustic001
- 心理声学模型，频谱绘制，把人听到的声音模型展示出来，它解释人各种听感的生理原理。有需要的可以下载参考(Psychoacoustic model, spectral rendering, there is a need to download the reference)
wav
- 可以实现对自己录制的wav格式声音进行频谱分析时域分析并且加入随机噪音，可播放声音进行对比，自动绘制波形频谱图。最后进行去噪滤波。适合大学生数字信号处理课程实验(It can realize the spectral analysis of the wav format, record the time domain analysis and add random noise. It can play the voice contrast, and automatically draw the
Desktop
- 小波降噪、时频分析等方法，系统地研究航天电子设备多余物噪声检测过程中各操作变量和微粒物理参数对声波频谱的影响。通过单因素试验，详细分析了微粒粒径、振动力学条件中加速度和频率等3因素对声音信号频谱分布的影响规律，比较了短时傅里叶变换和小波变换的特点。该结果为进一步识别多余物微粒的参数提供了指导依据(the complexity of the material interaction and the properties of the particles themselves make the re
滑动平均滤波器实验报告
- 给出一段噪声音乐信号，用滑动平均滤波器进行处理，观察改变滑动窗口宽度对声音效果的影响。 （1）读取一段噪声信号，画出未处理噪声信号的时域波形和信号频谱图； （2）在Matlab中利用滑动平均滤波器对噪声信号进行处理，得出处理后的图像； （3）改变滑动窗口的宽度，观察处理后噪声以及图像得出对效果的影响。(A piece of noise music signal is given. It is processed with a sliding average filter to obse
matlab编程
- 对声音信号采样分析频谱,改变采样率，播放，音频信号加噪声(Spectrum analyzer of sound files)
利用傅里叶变换和包络谱对轴承异响的分析
- 利用轴承声音信号做频谱分析和包络谱分析。(using voice of bearing vibration for FFT and hilbert FFT)