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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 |
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Description: 电赛一等奖作品：音频信号分析仪单片机源码，需和FPGA配合使用-Xinhua Cup first prize entries: Single-chip audio signal source analyzer, and the FPGA to be used in conjunction
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Size: 99328 |
Author: 李星 |
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Description: 基于FPGA的音频分析仪，能够分析出输入音频信号的周期，能量等-FPGA-based audio analyzer that can analyze the input audio signal cycle, energy, etc.
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Size: 36960256 |
Author: lijie |
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Description: mp4文件分解代码，可以将mp4文件分解成视频流和音频流-mp4 file decomposition code, mp4 files can be broken down into video streaming and audio streaming
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Size: 64512 |
Author: 龙山 |
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Description: 音频信号分析仪，能够进行音频信号的频率分析，对音频处理很有帮助-Audio signal analyzer capable of audio signal frequency analysis, audio processing helpful
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Size: 89088 |
Author: th |
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Description: 音频信号分析仪设计原码，也就是电子大赛一等奖的那个～-Audio signal analyzer designed the original code, that is, electronic contest first prize that ~
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Size: 202752 |
Author: 李寻 |
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Description: 用DE2板子实现的音频分析器,需要安装quartus2,硬件需要DE2的板子-DE2 board using the Audio Analyzer realize the need to install quartus2, the hardware needs of the DE2 board
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Size: 8626176 |
Author: 任迎 |
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Description: 基于vhdl的音频信号分析仪，获电子设计大赛一等奖-VHDL-based audio signal analyzer, an electronic design competition first prize
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Size: 5182464 |
Author: 杨天 |
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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: This archive contains circuit diagram and text documents making up the design of audio spectrum analyzer
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Size: 864256 |
Author: Robert |
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Description: 本音频信号分析仪由32位MCU为主控制器，通过AD转换，对音频信号进行采样，把连续信号离散化，然后通过FFT快速傅氏变换运算，在时域和频域对音频信号各个频率分量以及功率等指标进行分析和处理，然后通过高分辨率的LCD对信号的频谱进行显示。该系统能够精确测量的音频信号频率范围为20Hz-10KHz，其幅度范围为5mVpp-5Vpp，分辨力分为20Hz和100Hz两档。测量功率精确度高达1 ,并且能够准确的测量周期信号的周期，是理想的音频信号分析仪的解决方案。-The audio signal analyzer 32-bit MCU-based controller by the through the AD conversion of the audio signal sampling, the discretization of continuous signals, and then FFT Fast Fourier Transform calculations, in the time domain and frequency domain of audio signals in various frequency indicators such as weight and power analysis and processing, and then high-resolution LCD to display the signal spectrum. The system can accurately measure the audio signal frequency range of 20Hz-10KHz, the magnitude of the range of 5mVpp-5Vpp, resolution is divided into two tranches of 20Hz and 100Hz. Power Measurement accuracy up to 1 , and an accurate measurement of periodic signal cycles, is the ideal audio signal analyzer solution.
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Size: 197632 |
Author: zhangying |
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Description: This project incudes a libraries for playing various types of audio files whrough DirectMedia interfaces. The project includes spectrum analyzer and visualizer
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Size: 692224 |
Author: Blasius |
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Description: 数字信号处理在机械制造中，基于 FFT算法的频谱分析仪用于振动分析和机械故障诊断；医学中使用数字信号处理技术对心电(ECG)和脑电(EEG)等生物电信号作分析和处理；数字音频广播(DAB)广泛地使用了数字信号处理技术。可以说，数字信号处理技术已在信息处理领域引起
了广泛的关注和高度的重视。-Digital signal processing in the machinery manufacturing, FFT algorithm based on a spectrum analyzer for vibration analysis and mechanical fault diagnosis medicine use of digital signal processing technology for ECG (ECG) and EEG (EEG) and other bio-signals analysis and treatment Digital Audio Broadcasting (DAB) extensive use of digital signal processing technology. It can be said digital signal processing technology has been in the field of information processing caused by
A wide range of attention and a high degree of attention.
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Size: 16074752 |
Author: 尹泉 |
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Description: 此为使用周立功ARM1138编的音频分析仪的代码，主要包括FFT运算、测频校正算法、以周立功TFT液晶LTM024D130的驱动文件为基础编的LCD显示的用户界面，使用的IAR V5.11(32KB限制)下进行编程-This is audio analyzer code based on the ZLG ARM1138, mainly including FFT operation, frequency measurement correction algorithm and LCD display user interface based on ZLG TFT LCD LTM024D130 driven paper,using IAR V5.11 ( 32KB limit) for program
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Size: 257024 |
Author: 黎鑫 |
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Description: 这是一个简单的应用，建立了解的Windows音频波形API的基本知识，并得到快速傅立叶变换（FFT）基本掌握。应用程序的特点是：双缓冲图形，采样音频信号源，选择录音源，使用调音台，计算FFT频谱阵列，并绘制采样数据。-This is a simple application built to understand the basics of the Windows Audio WAVE API, and to get a basic grasp on Fast Fourier Transforms (FFTs). Features of the application are: double buffering graphics, sampling an audio source, selecting an audio recording source using the mixer, calculating the FFT spectrum array, and plotting sampled data.
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Size: 12119040 |
Author: 王海光 |
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Description: 2007年全国电子设计，音频分析仪，基于正点原子mini开发板。用的STM32自带AD，定时器精确控制采样率，通过FFT变换，实现频谱显示、功率显示、周期性判断等。-2007 National Electronic Design, audio analyzers, atomic mini development board based on punctuality. The STM32 comes with AD, precise control of the sample rate timer by FFT, realize spectrum display, power display, periodic judgment.
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Size: 3686400 |
Author: 曹春玲 |
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Description: 一款开源的安卓手机示波器，用于显示音频波形-An open-source Android mobile phone oscilloscope is used to display the audio waveform
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Size: 251904 |
Author: 王怀玉 |
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Description: audio spectrum library for lean
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Size: 4096 |
Author: le ba huy
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Description: AUDIO & AMPLIFIER P1 2N3055 Power Amplifier P2 Automatic Loudness Control P3 60W Guitar Amplifier P4 High Quality Intercom P5 10W Audio Amplifier with Bass-boost P6 60W Bass Amplifier P7 Electronic Stethoscope P8 Electronic Stethoscope II P9 10W Mini Audio Amplifier P10 18W Audio Amplifier P11 Sound Level Indicator P12 Low pass filter - Subwoofer P13 Simple Digital Volume Control P14 Stereo Preamplifier with Bass-boost P15 50 Watt Amplifier P16 Amplifier 2x30W with STK465 P17 Sound Level Meter P18 Portable Mixer P19 Amplified Ear P20 Guitar Amplifier P21 25W Mosfet audio amplifier P22 Phono Preamplifier P23 3 Channel Spectrum Analyzer P24 22 Watt Audio Amplifier P25 Bass-treble tone control circuit P26 Portable Microphone Preamplifier P27 Electronics Attenuator P28 3 Line Mixer and more....
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Size: 2144933 |
Author: nvejxvta@sharklasers.com |
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