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[Windows Develop] FFT of waveIn audio signals

Description: The Fast Fourier Transform (FFT) allows users to view the spectrum content of an audio signal. The FFT code presented here was written by Don Cross though his homepage appears to have subsequently been taken down. Rather than explain the mathematical theory of the FFT, I will attempt to explain its usefulness as it relates to audio signals-The Fast Fourier Transform (FFT) allows us ers spectrum to view the content of an audio sign al. The FFT code presented here was written by Do n Cross though his homepage appears to have subs equently been taken down. Rather than explain t he mathematical theory of the FFT. I will attempt to explain its usefulness as it re Lates to audio signals
Platform: | Size: 22612 | Author: 冰城 | Hits:

[VHDL-FPGA-Verilog] FFT变换的IP核的源代码 VHDL~

Description: FFT变换的IP核的源代码 VHDL~-FFT IP core of the source code for VHDL ~
Platform: | Size: 31744 | Author: 陈旭 | Hits:

[Windows Develop] FFT of waveIn audio signals

Description: The Fast Fourier Transform (FFT) allows users to view the spectrum content of an audio signal. The FFT code presented here was written by Don Cross though his homepage appears to have subsequently been taken down. Rather than explain the mathematical theory of the FFT, I will attempt to explain its usefulness as it relates to audio signals-The Fast Fourier Transform (FFT) allows us ers spectrum to view the content of an audio sign al. The FFT code presented here was written by Do n Cross though his homepage appears to have subs equently been taken down. Rather than explain t he mathematical theory of the FFT. I will attempt to explain its usefulness as it re Lates to audio signals
Platform: | Size: 22528 | Author: 冰城 | Hits:

[Windows Develop] How to implement the FFT algorithm

Description: Basically, this article describes one way to implement the 1D version of the FFT algorithm for an array of complex samples. The intention of this article is to show an efficient and fast FFT algorithm that can easily be modified according to the needs of the user. I ve studied the FFT algorithm when I was developing a software to make frequency analysis on a sample of captured sound.-Basically, this article describes one way to implement the 1D version of the FFT algorithm for an array of co mplex samples. The intention of this article is to show an efficient and fast FFT algorithm that can easily be modified according to the needs of the user. I ve studied the FFT algorithm when I wa s developing a software to make frequency Analytics sis on a sample of captured sound.
Platform: | Size: 27648 | Author: 冰城 | Hits:

[DSP program] TMS320F2812-FFT

Description: F2812 标准FFT算法,128点,256点,512点,1024点FFT算法,具体做法为将库含数FFT.LIB加入的目标项目,加入对应的C含数和头文件,特别注意的FFT算法缓冲去一定要存放在0X8000H中的内部缓冲区中!!!切记,本人调试时就走了很多弯路啊-F2812 standard FFT algorithm, 128, 256, 512, 1024-point FFT algorithm, the specific approach to the library will join with several FFT.LIB goals, joined counterparts with the number of C header files, pay special attention to the FFT algorithm to buffer must 0X8000H stored in the internal buffer! ! ! remember, I debug away many detours ah
Platform: | Size: 23552 | Author: 孙玉海 | Hits:

[Special Effects] FFT(good)_CanTestWithImage

Description: 图像傅立叶变换(频域变换经典代码)，相信大家在学数字图像处理时，老师一般都要求学生用C++来实现图像Fourier变换，有了这个实例，就方便多了。_带图片可测试-images Fourier transform (frequency domain transform classic code), I believe we learn in digital image processing, teachers generally require students to use C Image Fourier transform, the existence of such examples, more convenient. _ Can be tested with pictures
Platform: | Size: 473088 | Author: whq | Hits:

[Algorithm] fft-by_skyline

Description: 这是一个我自己写的FFT的c程序，可以计算n(<4096)个点（可以是虚数）的结果 -This is one I wrote it myself FFT c procedures can be calculated n (
Platform: | Size: 2048 | Author: 王靖杰 | Hits:

[Embeded-SCM Develop] fft-arm-0.01.src

Description: 针对ARM优化过的FFT算法。其中20点，64点，80点的FFT算法。笔者试着加入了256点的FFT -for ARM optimized FFT algorithm off. 20 points, 64 points, 80 points of the FFT algorithm. I tried to join the 256-point FFT
Platform: | Size: 15360 | Author: yinaichang | Hits:

[MPI] fft

Description: 解决FFT的编程问题，赶紧下啊~~很 好的，真的，不过不是我编的，高手那转的！-FFT to solve programming problems, quickly, under ah ~ ~ very good, really, but I am not prepared, and master it turn!
Platform: | Size: 1024 | Author: 王斌 | Hits:

[Special Effects] fft

Description: fft图像配准，希望能对大家有帮助，希望大家多交流。-fft image registration, I hope everyone can help, I hope more than U.S. exchanges.
Platform: | Size: 73728 | Author: 王昱 | Hits:

[DSP program] fft-DIF

Description: 自己编写的C语言基于频率抽取的基2FFT算法，用于大家学习交流-I have written C language based on the frequency of taking the base 2FFT algorithm, for them to learn from the exchange of
Platform: | Size: 1024 | Author: 王伟兰 | Hits:

[DSP program] FFT

Description: TMS320VC5502的FFT算法程序验证，我验证过了！-TMS320VC5502 procedures to verify the FFT algorithm, I tested a!
Platform: | Size: 122880 | Author: zoutianhao2008 | Hits:

[Multimedia Develop] FFT-PCM

Description: 这是本人做的一个，基于VB的一个音频文件FFT计算与频谱显示的软件。包括源代码，是个不错的源代码。-This is one I do, based on the VB of an audio file FFT calculation and spectrum display software. Including source code, is a good source code.
Platform: | Size: 6990848 | Author: 余海斌 | Hits:

[Special Effects] fft

Description: 用Visaual C++写的进行fft变换的程序，希望会有帮助-With Visaual C++ Written fft to transform the procedure, I hope will be helpful
Platform: | Size: 3072 | Author: niu | Hits:

[Algorithm] FFT

Description: // 入口参数： // l: l = 0, 傅立叶变换 l = 1, 逆傅立叶变换 // il: il = 0,不计算傅立叶变换或逆变换模和幅角；il = 1,计算模和幅角 // n: 输入的点数，为偶数，一般为32，64，128，...,1024等 // k: 满足n=2^k(k>0),实质上k是n个采样数据可以分解为偶次幂和奇次幂的次数 // pr[]: l=0时，存放N点采样数据的实部 // l=1时, 存放傅立叶变换的N个实部 // pi[]: l=0时，存放N点采样数据的虚部 // l=1时, 存放傅立叶变换的N个虚部 // // 出口参数： // fr[]: l=0, 返回傅立叶变换的实部 // l=1, 返回逆傅立叶变换的实部 // fi[]: l=0, 返回傅立叶变换的虚部 // l=1, 返回逆傅立叶变换的虚部 // pr[]: il = 1,i = 0 时，返回傅立叶变换的模 // il = 1,i = 1 时，返回逆傅立叶变换的模 // pi[]: il = 1,i = 0 时，返回傅立叶变换的辐角 // il = 1,i = 1 时，返回逆傅立叶变换的辐角-err
Platform: | Size: 1024 | Author: bluefeifei | Hits:

[Algorithm] FFT

Description: 关于fft的混合基运算，及fft运算。自己编写的，可能效率不好-Fft based on a mixture of computing and computing fft. I have written may be inefficient
Platform: | Size: 221184 | Author: 关华 | Hits:

[Embeded-SCM Develop] fft-arm

Description: 一个用于ARM的基4/基5定点FFT算法，原作者是JDB，后来我扩展过16和256点的计算并用在项目中了，感觉速度还不错。现在重写了基于Linux GCC4的测试程序，可供使用者评估参考。建议安装FFTW3用来精确评估测试结果，相关范例已经在代码中了。-Radix 4/5 FFT routines supporting 16/64/256 and 20/80 calculations. The source originally contributed by JDB, I had extended 16 and 256 candidates and used it in our project it has been verified as fast and stable. Now we add some test vectors running on Linux with GCC 4 for testers who want to use or just evaluate it. Installing FFTW3 is recommended for evaluating the code exactly.
Platform: | Size: 242688 | Author: Tony Gibson | Hits:

[Algorithm] fft

Description: 时域信号转换为频域信号的几个例子，本人都用过的，绝对能运行-Time-domain signal is converted to frequency domain signal a few examples, I have been used, absolutely can run
Platform: | Size: 2048 | Author: zh | Hits:

[Communication-Mobile] (I)FFT

Description: fft变换，c语言的，需要的朋友可以看一下-fft transform
Platform: | Size: 1024 | Author: 银河浣星 | Hits:

[Other] fft

Description: The code in this library contains an implementation for Fast Fourier Transforms on arbitrary length complex data. It is based on old FORTRAN code, found in a signal processing archive. I dissected the FORTRAN code, since it worked with normal arrays and I wanted everything to work with my own complex number arrays. Also, I substituted a lot of old written out code with much more readable procedures.
Platform: | Size: 512000 | Author: lzzealot | Hits:
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