搜索资源列表
ding
- 选取windows系统自带的ding.wav信号作为分析对象,在Matlab软件平台下,利用函数wavread对音频信号进行采样,记住采样频率和采样点数,听一下原始声音sound(y, fs, bits)。 (2)音频信号的频谱分析,先画出音频信号的时域波形;然后对音频号进行快速傅里叶变换fft(y,N),N取32768,画出信号的频谱特性,加深对频谱特性的理解。 (3)根据频谱,反演时域特性,画出时域波形。寻找幅值最大的两个频率,此频率除以fft点数在乘以采样频率就是信号的主频,即可合
SystemView
- 文件名 例子说明 1-1.svu 信号的平方 1-2.svu 双边带调幅信号的频谱 3-1.svu 拉普拉斯系统 3-2.svu 三阶系统的根轨迹与波特图计算 4-1.svu AM调制解调 4-2.svu AM 超外差收音机模型 4-3.svu SSB移相法形成 5-1.svu 间接法调频 5-2.svu 阿姆斯特兰朗法调频 5-3.svu FM积分鉴频器的仿真 5-4.svu 声音通过FM传输 6-1.svu 用一阶锁相环实现的FM解调器 6
banyi
- 音频频谱分析,实现频谱搬移,对分析声音信号很有帮助。-Audio spectrum analysis, to achieve the spectrum move, on the analysis of sound signals helpful.
FFT_dsound
- FFT声音动态频谱,可以采集声音并对其进行动态频谱分析。-FFT Dynamic Spectrum Sound AppWizard has created this DSound application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your a
cxsjlbpp
- 关于车辆声音信号的滤波、能量以及频谱分析-Voice signals on the vehicle filtering, spectral analysis of energy and
Matlab
- 语言信号的频谱分许和简单声音的合成与模拟-Language sub-spectrum signals in the voice of Xu and simple synthesis and simulation
code1
- 利用matlab提供的工具来采集和分析声音信号的频谱,内含声音文件ding.wav-Using matlab to provide tools to collect and analyze the voice signal spectrum
Wave
- 声音文件播放程序。可以播放WAV文件,并绘制出WAV文件的波形,在播放时还可以绘制出声音的频谱。 -wave parse
matlab
- 录制一段噪声,利用matlab对该材料进行声音的频谱分析。-Record a noise, the use of the material to matlab sound spectrum analysis.
multisamplerate
- 改变原始wav音频信号的抽样频率,并且显示处理前后声音信号的频谱.有助于帮助大家理解奈圭斯特抽样定理。-Change the original wav audio signal sampling frequency, and shows the spectrum of sound signal before and after treatment. Helps to help you understand the Nyquist sampling theorem.
red
- 这是一个基于VC的声卡采集程序,从声音的信号采集消息的处理,频谱的分析,波形的显示-This is a VC-based sound card acquisition program, collecting information from the voice signal processing, spectrum analysis, waveform display and so on. .
musicplay
- 们知道,声音的频谱范围约在几十到几千赫兹,若能利用程序来控制单处机某个口线的“高”电平或低电平,则在该口线上就能产生一定频率的矩形波,接上喇叭就能发出一定频率的声音,若再利用延时程序控制“高”“低”电平的持续时间,就能改变输出频率,从而改变音-We know that the sound spectrum in the range of tens to thousands of cycles per second, if we use program to control an exit lin
treatement-de-son
- 声音信号处理,采集和分析语言信号的频谱并且用低通滤波器处理该信号。播放最后处理信号。-treat the signal of son, detect the signal of son and analyse the frequental spectre of signal and treat it with filtre passe-bas. Play the wav treated.
Sound_image_acquisition_a_analysis
- 整个系统分为数据采集和数据分析两大部分,以友好的图形界面与用户进行交互沟通。 声音数据采集部分实现数据采集功能,根据用户选择的采样频率和预设的采样时间来从声卡获得用户需要的数据。并且将采集到的数据及其频谱图以图形方式很直观的呈现于用户面前。 图像采集分析部分,读入图像后,根据选择,对其进行Linear Conformal、Affine、Projective、Polynomial、Piecewise Linear、Sinusoidal、Barrel、Pin Cushion变换-The wh
Untitled2
- 求离散傅立叶频谱, 重构低通滤波,在噪声环境下语音信号的增强,语音信号为读入的声音文件,噪声为正态随机噪声-Discrete Fourier spectrum seeking to reconstruct low-pass filter, the noise enhancement of speech signals, speech signal is read into the sound file, the noise is normal random noise
TrueWavAnalyzer
- 真正的声音分析软件。可分析波形、频谱。20个字-Recordable wave real-time display. Spectrum of wave file, waveform.
signal-spectrum-analyzer
- 这是matlab编写的声音信号频谱分析仪-It is written in matlab sound signal spectrum analyzer
Matlab_wav
- 基于Matlab的音频文件数字滤波处理。本文基于Matlab分析了wav声音文件频谱与声音的关系,并给出了不同采样频率对输出声音信号的影响。-Matlab-based digital filter processing of audio files. This analysis based on Matlab wav sound files and sound relationship between the spectrum and gives different output samplin
exc0501
- 音频信号频谱分析:应用普通录用软件录制声音,对其进行时域和频域分析-audio signal frequency analyse
pinpufenxiyi
- 频谱分析仪作业,照着下载的资料做的,功能都可以实现,录音时如果信号不满足过零检测法的条件会出现错误,如果可以的话自己录制声音。-Spectrum analyzer operation, done according to the downloaded data, functions can be achieved, recording zero if the signal does not meet the conditions of detection error, if possible,