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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
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Size: 22612 |
Author: 冰城 |
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Description: 声卡测试程序,包括音频分析和FFT算法,可以分析mp3,wave 文件,和声卡性能测试
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Size: 15991 |
Author: jerry |
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Description: 声卡波形分析，具有fft波形变换功能。采用windows api编程。是个学习的很好例子-audio waveform analysis, waveform with fft transform function. Using windows api programming. The study is a good example of
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Size: 39936 |
Author: 李俊 |
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Description: 这是一个数字信号处理的函数库,包括FFT变换，各种滤波算法， 如果你要编写数字信号处理相关的程序，这是个不错的选择-This a digital signal processing functions, including FFT, various filtering algorithm, if you want to prepare digital signal processing related to the procedure, which is not a bad choice
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Size: 40960 |
Author: 开始 |
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Description: 这个例子是用来数字处理在AIC23上的线性音频数据，并且现行输出-this example is used in digital processing of linear AIC23 audio data, and output current
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Size: 6144 |
Author: 木晓易 |
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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
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Size: 22528 |
Author: 冰城 |
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Description: labview fft labview8.20 用于音频变换.但8.20 不好下载-fft labview8.20 for PC Audio transform. But not download 8.20
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Size: 121856 |
Author: 卢闻 |
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Description: the convert the audio from the cep unit fft to mel spectrum-the convert the audio from the probes unit fft t o mel spectrum
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Size: 2048 |
Author: 雷柏英 |
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Description: 此为2007年全国大学生电子设计大赛A题音频信号分析仪的源代码，其最主要的特点是采用FFT算法在MSP430中实现音频频谱的分析-This is the 2007 National Undergraduate Electronic Design Contest A title of the audio signal analyzer
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Size: 59392 |
Author: |
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Description: 声卡测试程序,包括音频分析和FFT算法,可以分析mp3,wave 文件,和声卡性能测试-Sound test procedures, including audio analysis and FFT algorithms, can be analyzed mp3, wave files, and sound card performance test
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Size: 15360 |
Author: jerry |
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Description: 用单片机做的音频功率谱分析，包含FFT程序。单片机用STC的51单片机。-Done using single-chip audio power spectrum analysis, including FFT procedures. Single-chip single-chip microcomputer 51 with STC.
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Size: 4096 |
Author: feee |
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Description: 音频FFT，包括声音录入，FFT变换的结果，以曲线形式显示-Audio FFT, including voice input, FFT transform the results to show the curve of the form
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Size: 227328 |
Author: 王亚 |
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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.
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Size: 6990848 |
Author: 余海斌 |
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Description: 2007年全国大学生电子设计大赛，A题音频信号分析仪的全部源程序。
单片机为c8051f120，系统时钟倍频至96MHZ。
main.c是一个包含五级菜单的主函数。
FFT.C是进行fft变换，将时域信号变换成频域信号。
flash.c是读写片外flash存储器的程序,可以将分析结果保存,以备调用.
z7290.c是周立功7290键盘芯片的驱动程序.
FFT_xgjis.c是对变换后的频谱进行分析和运算.
FFT_CodeTable.c是一个正弦表,在FFT的时候调用.
LCD320240.c是320*240的液晶驱动程序,液晶的控制器是SED1335.
所有的.h文件提供了子函数的定义.
本程序用KEIL3 802版本编译通过，将所有的.C文件添加到工程中，并编译main.c
注意两点:1.器件选择c8051f120.
2.在target中将时钟设为96M.同时必须将Memory Model 改成large--XDATA.默认的是small.
因为本设计占用的资源是非常大的.
Program Size: data=81.3 xdata=6811 code=43056-2007 National Undergraduate Electronic Design Contest, A title of the audio signal analyzer full source code. Singlechip c8051f120, system clock multiplier to 96MHZ. main.c is a menu that contains the main function 5. FFT.C is fft transform, time-domain signal will be converted into frequency domain signals. flash.c are reading and writing flash memory chip procedure, the results of the analysis can be preserved, for calling. z7290.c weeks are Ligong 7290 driver keyboard chip. FFT_xgjis.c is transformed spectrum analysis and computing. Sine FFT_CodeTable.c is a table at a time when FFT calls. LCD320240.c are 320* 240 LCD drivers, LCD controllers are SED1335. all. h document provides the definition of Functions.
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Size: 35840 |
Author: 王渔阳 |
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Description: This article describes how to
build simple audio spectrum analyzer based on FFT algorithm using Philips LPC2138
microcontroller.
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Size: 104448 |
Author: Robert |
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Description: filter about FFT and microsoft wave audio
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Size: 21504 |
Author: trying |
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Description: dft fft used in read audio file
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Size: 320512 |
Author: ocj |
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Description: 基于stc12c5a60s2的 fft音频快速傅里叶变换，可以扩展做数字滤波器-Fft audio based stc12c5a60s2 the fast Fourier transform, digital filters can be extended to do
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Size: 3072 |
Author: jacky |
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Description: Audio Signal Processing and Recognition
资源为html格式，包含大量示例以及练习，是学校语音信号处理的绝好教材-Audio Signal Processing and Recognition resources for html format, including a large number of examples and exercises, is an excellent school teaching speech signal processing
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Size: 3494912 |
Author: songyue |
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Description: 战舰STM32F103开发板V3版本 音频实验(The audio experiment of the V3 version of the warship STM32F103 development board)
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Size: 423936 |
Author: daimengxiaozi |
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