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Description: 快速傅立叶变换算法中的分裂基算法，又称基2/4算法，对一维序列，这种算法使FFT比较完善-Fast Fourier Transform algorithm separatist base algorithm, also known as base 2 / 4 algorithm, the one-dimensional sequence, so FFT algorithm sound
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Size: 2601 |
Author: 刘威 |
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Description: 快速傅立叶变换算法中的分裂基算法，又称基2/4算法，对一维序列，这种算法使FFT比较完善-Fast Fourier Transform algorithm separatist base algorithm, also known as base 2/4 algorithm, the one-dimensional sequence, so FFT algorithm sound
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Size: 2048 |
Author: 刘威 |
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Description: 实现实时声卡声音波动的傅立叶变换后显示输出，附带源代码。-Sound card real-time voice fluctuations show the output after the Fourier transform, with the source code.
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Size: 195584 |
Author: hcp |
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Description: 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 Three: Transform and painting to FFT frequency domain graphics. Step four: the main frequency spectrum of the acoustic analysis. Step 5: According to the sound spectrum, inversion of time-domain graphics. (With distortion) Step six: to carry out inverse Fourier transform frequency domain IFFT and painted graphics.
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Size: 64512 |
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Description: 请认真阅读采用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 。-Please carefully read the WAV files using MATLAB analysis. Step One: Select a WAV file as the target of analysis. (Ding.wav) Step Three: Transform and painting to FFT frequency domain graphics. Step four: the main frequency spectrum of the acoustic analysis. Step 5: According to the sound spectrum, inversion of time-domain graphics. (With distortion) Step six: to carry out inverse Fourier transform frequency domain IFFT and painted graphics.
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Size: 64512 |
Author: 李南 |
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Description: MFCC (Mel Frequent Cepstral Coefficient) in M-File.
epresentation of the short-term power spectrum of a sound, based on a linear cosine transform of a log power spectrum on a nonlinear mel scale of frequency.
MFCCs derived as follows:
1. Take the Fourier transform of (a windowed excerpt of) a signal.
2. Map the powers of the spectrum obtained above onto the mel scale, using triangular overlapping windows.
3. Take the logs of the powers at each of the mel frequencies.
4. Take the discrete cosine transform of the list of mel log powers, as if it were a signal.
5. The MFCCs are the amplitudes of the resulting spectrum.
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Size: 1024 |
Author: Mitha |
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Description: 监听输入音频并利用FFT算法计算出其频谱-This article shows how to use a Fast Fourier Transform (FFT) algorithm to calculate the fundamental frequency of a captured audio sound.
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Size: 121856 |
Author: 王明远 |
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Description: 改程序实现了根据简朴音符合成音乐的功能，并且对不同乐器的声音进行傅里叶分析，可以合成具有不同音色的音乐-Reform process to achieve a synthesis of musical notes based on simple features, and the voices of different instruments to Fourier analysis, can be synthesized with different sound of music
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Size: 374784 |
Author: 陈涛 |
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Description: 本程序是一个用短时傅立叶变换实现的心音时间、频率分析-This program is a short-time Fourier transform implemented with the heart sound time frequency analysis
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Size: 1024 |
Author: 刘晨曦 |
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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: 声卡采集程序:
傅立叶变换分析
TAdiuo控件-Sound card collection procedures: Fourier transform analysis TAdiuo Control
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Size: 642048 |
Author: boy901 |
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Description: 利用matlab做声音分析，从声卡读入数据，并作快速傅立叶等分析。-Using matlab to do the sound analysis of the data read from the sound card, and so on for fast Fourier Analysis.
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Size: 1024 |
Author: lym |
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Description: Matlab仿真物体入水产生的溅落声信号，并对信号进行短时傅里叶变换。-Matlab simulation objects splash into the water generated sound signals, and short time Fourier transform signal.
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Size: 1024 |
Author: 杨阳 |
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Description: 快速傅里叶变换，用csharp编写的，学习学习学习学习。里边有一个类，是老外写的-Fast Fourier transform, written using csharp, learning learning learning learning. Inside a class, are written by foreigners
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Size: 172032 |
Author: 马志 |
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Description: 音频的傅里叶变换，生成频谱，声谱等要素，读取音频文件的主要信息-Audio of the Fourier transform to generate the spectrum, sound spectrum and other factors, the main information read the audio file
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Size: 158720 |
Author: guyilin123 |
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Description: 吉他调弦，相当于ap guitar tuner-This article shows how to use a Fast Fourier Transform (FFT) algorithm to calculate the fundamental frequency of a captured audio sound. Also, we will see how to apply the algorithm to analyze live sound to build a simple guitar tuner: the code provides a solution to the problem of calculation of the fundamental frequency of the played pitch.
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Size: 31744 |
Author: bxstar |
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Description: 利用matlab对声音信号进行傅里叶变换，得到信号的频率图，进而对信号的特征进行分析。-Use of matlab Fourier transform of the sound signals, to get the signal frequency plot, and then analyze the characteristics of the signal.
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Size: 3072 |
Author: fangxujun |
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Description: matlab实现录音 播放 fourier变换的程序-matlab fourier sound
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Size: 1024 |
Author: 吕泽 |
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Description: 利用短时傅里叶变换对心音信号的成分的分析研究。-Analysis of components of heart sound signals using short-time Fourier transform.
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Size: 68608 |
Author: hcl |
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Description: 声音的傅里叶变换和滤波，改变声音信号的采样率(The Fourier transform and filtering of sound changes the sampling ratio)
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Size: 397312 |
Author: squirrel
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