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BispectrumWavelets
- 用双谱和小波变换去除信号中加性高斯噪声的相关程序 1.实现单个变量的双谱分析程序 2.用傅立叶反变换求自相关函数的程序 3.用fft求取喜好频谱、功率谱、均方根谱、对数谱的程序 4.读取.wav语音信号后用小波去加信白噪声的程序 5.用各种小波和阀值对同一信号去加性噪声效果比较的程序 -Double-spectral and wavelet transform to remove the signal plus Gaussian noise procedures 1. T
awgn
- DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求： (1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。 -DTMF (
InputSoundFft_src
- 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.
oscilloscope_src
- 这是一个简单的应用我建立理解波的Windows音频API的基础知识，并获得一个快速傅立叶变换（FFT变换）的基本掌握。它的功能是：双缓冲绘图，取样的音频源，选择一个录音源使用搅拌机，FFT频谱计算阵列，并策划采样数据。 -This is a simple application I built to understand the basics of the Windows Audio WAVE API, and to get a basic grasp on Fast Fourier Tra
IMDCT_base_on_FFT
- 一种基于FFT的IMDCT算法，来自Marina Bosi的《Introduction to Digital Audio Coding and Standards》一书。-The IMDCT algorithm based on FFT, from the book "Introduction to Digital Audio Coding and Standards".
attack.m.tar
- Audio Feature Extraction routine. this routine extracts the attack time of an audio source, by extracting the timing (sample) of the highest peak. The archive inclues a routine to extract the fft and display it. Requires Voicebox for matlab.
FFTAudioWater
- High capacity audio watermarking using fft amplitude interpolation
buatframe
- 1. to calculate FFT real-time 2. to control the brightness of your picture real time 3. to make frames from your audio files
FTT_audio
- Audio capture and FFT calc and ploting
vocoder_fft_v11_shift_pOK
- Vocoder by shifting - using FFT. Charge a Audio file .WAV ANS REPRODUCE THE RESPOSE IN .VAW
fft
- this doc for fft of audio signal compression -this is doc for fft of audio signal compression
SoundCardData
- fft spectrum audio file
dspstfft_daq
- fft spectrum audio file
0500Hz_11.025kHz_16Bit
- fft spectrum audio file
flattop_1
- fft spectrum audio file
2nd
- 試做錄音.讀音訊檔 並做FFT轉換和端點偵測(介面) MATLAB程序-Try to do the recording. Reading audio files and do the the FFT conversion and endpoint detection (interface) MATLAB program
yhnzvqcs
- 基于分段非线性权重值的Pso算法，复化三点Gauss-lengend公式求pi，实现了对10个数字音的识别程序粒子图像分割及匹配均为自行编制的子例程，有小波分析的盲信号处理，旋转机械二维全息谱计算，MIMO OFDM matlab仿真,基于kaiser窗的双谱线插值FFT谐波分析。- Based on piecewise nonlinear weight value Pso algorithm, Complex of three-point Gauss-lengend the Formula p
hatzstvg
- 基于人工神经网络的常用数字信号调制，采用波束成形技术的BER计算，IDW距离反比加权方法，线性调频脉冲压缩的Matlab程序,基于kaiser窗的双谱线插值FFT谐波分析，主要为数据分析和统计，实现了对10个数字音的识别程序正确率可以达到98％。- The commonly used digital signal modulation based on artificial neural network, By applying the beam forming technology of BE
faibou_v15
- 使用matlab实现智能预测控制算法，基于kaiser窗的双谱线插值FFT谐波分析，实现了对10个数字音的识别程。- Use matlab intelligent predictive control algorithm, Dual-line interpolation FFT harmonic analysis kaiser windows, Realization of 10 digital audio recognition progra.
jiejing
- 实现了对10个数字音的识别程序正确率可以达到98％，ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块。- Realization of 10 digital audio recognition program Accuracy can reach 98 , ofdm system simulation including 16qam modulation fft windowing modules plus cp.