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praat4501_sources
- 音频数据分析，可以进行频域、时域、声强等的分析-Audio data analysis, frequency domain and time domain, the acoustic intensity analysis
MATLAB_forspeech.rar
- 采用MATLAB分析WAV文件。 步骤一：选择一个WAV文件作为分析的对象 。（ding.wav） 步骤三：进行 FFT变换并画频域图形 。 步骤四：进行该声波主要频谱的分析。 步骤五：根据该声音的频谱，反演时域图形 。（有失真） 步骤六：进行付立叶逆变换IFFT并画频域图形 。,WAV file analysis using MATLAB. Step One: Select a WAV file as the target of analysis. (Ding.wav) Step
932441WaveRecorder
- 运用DirectSound实现音频采集并实时播放。同时保存为.wave文件。可设置采集频率、声道等-Achieved using DirectSound audio capture and real-time playback. At the same time save. Wave files. Can be set to capture the frequency, channel, etc.
waverecord
- 就是按输入的时间录音，回放，显示波形及频谱图 录音过程中有动态频谱显示 -Itis input by the time recording, playback, show the waveform and frequency spectrum of dynamic recording process of the spectrum shows
specdisp
- 自己写的利用FFT变换实现的声音频谱分析函数，支持多声道wav，可以对FFT变换点数、时间分辨率、频率分辨率、显示方式进行定制-Wrote it myself using FFT transform the voice spectrum analysis function, support multi-channel wav, can transform FFT points, time resolution, frequency resolution, and display customiz
Dis_Wave
- 能实现1Hz~50MHz间的频率测量，显示信号周期，能实现1Hz~15KHz间的信号波形实时显示，采样速率120KHz。-1Hz ~ 50MHz to achieve inter-frequency measurements show that the signal cycle, to achieve inter-1Hz ~ 15KHz real-time display of signal waveforms, the sampling rate of 120KHz.
TTS_Sound
- Text to Speed（TTS） 初步应用。英文男声女声朗读、中文男声可选。可以打开TXT文件朗读其中内容。具有音量可以设置，朗读速度可以设置，朗读频率可以设置的功能。同时可以讲朗读内容保存为.wav格式输出，亦可以读取.wav文件。-Text to Speed (TTS) preliminary application. Male female voice reading in English, Chinese male optional. Can open the TXT file to
music_recognize_on_matlab
- 从信号处理的角度讲，小波(变换)是强有力的时频分析(处理)工具，是在克服傅立叶变换缺点的基础上发展而来的，所以从信号处理的角度认识小波，需要傅立叶变换、傅立叶级数、滤波器等的基础知识。 -From signal processing perspective, the wavelet (transform) is a powerful time-frequency analysis (processing) tool is to overcome the shortcomings on th
musicdsp
- musicdsp source code archive-Analysis Beat Detector Class Coefficients for Daubechies wavelets 1-38 DFT Envelope detector Envelope Detector class (C++) Envelope follower with different attack and release Fast in-place Walsh-Hadamard Tra
digitalfilter
- 设计产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，使用矩形窗设计不同特性的数字滤波器对信号进行滤波处理，分析所设计滤波器(画出了频率特性曲线)，并对信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，同时设计出了一个友好的人机交互界面。-Designed to produce a continuous signal, including low frequency, medium frequency, high frequency componen
kulkarniIyerSridharan-AudioSegmentation
- a novel algorithm to segment an audio piece into its structural components. The boundaries of the homogeneous regions are decided based on various time and frequency domain features. The algorithm has been designed in 2 stages. In the first
wav
- 读入一个wav的音频文件，然后对其进行时域频域的分析-Read a wav audio file, then its time domain frequency domain analysis
do-detection-and-frequency-spectrum
- Shows the frequency spectrum and shows all occuring doh notes in the time domain.
EVB_max
- 基于短时窗时频分析的相位声码器 核心代码 phase vocoder-phase vovoder bassed on time-frequency analysis
voice1
- 声音频谱和时域图像的matlab绘制，并且加入固定频率的噪音听取其效果。-Sound spectrum and time domain matlab image rendering, and adding noise fixed frequency to listen to its effects.
speech-signal-filter
- 使用matlab语言对一段语音信号进行滤波处理，首先分析时域信号，之后进行傅立叶变换，转换成频域，使用巴特沃斯低通滤波器去除高频部分。-Use matlab language of a voice signal is filtered first time domain signal after the Fourier transform is converted into the frequency domain, using a Butterworth low-pass filter to
libogg
- 首先对输入音频PCM信号进行时频分析，决定MDCT的长度，即加窗，然后进行MDCT变换；同时对原始音频信号要进行FFT分析。两种变换的频谱系输入给心理声学模型单元，MDCT系数用于噪声掩蔽计算，H可结果用于音调掩蔽特性计算，共同构造总的掩蔽曲线。然后根据MDCT系数及掩蔽曲线，对频谱系数进行线性预测分析用LPC(Linear Prediction Coefficience，线性预测系数)表示频谱包络，即基底曲线(Floor Curve)；或通过线性分段逼近方式获得基底曲线。从MDCT系数中去掉
stft
- 该程序中audiorec.py可以录制一个音频文件，stft.py可以对该文件做短时傅里叶变化进行分析，得到音频文件的频率信息，进而可以根据音频文件的来源判断其中的信息。在压缩包中还包含一个音频文件可以作为例子。- The program audiorec.py can record an audio file, stft.py can make the file changes short time Fourier analysis to obtain frequency informat
程式碼
- 该代码可做快速傅里叶转换以及离散傅里叶转换以及绘制三维时频图(The code can do fast Fourier transform, as well as discrete Fourier transform, and to draw three-dimensional time-frequency map)
MDD_stfd
- 采用MDD（多方向分布）来进行基于时频分析的定位(MDD (multidirectional distribution) is used to locate location based on time-frequency analysis.)