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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
wav_fft_draw
- 这是用matlab编的代码，实现的功能是可以方便的给定一段信号，画出它的频域的频谱图，对写论文有帮助-This is compiled with the matlab code, function is convenient for a given period of the signal, draw its frequency spectrum chart, to help write the paper
yuyinchuli
- 对语音进行简单处理 FFT变换 消噪等 含完整matlab文件和wav语音文件 -Simple voice processing such as FFT transform denoising matlab file containing a complete and wav sound files
wavfft
- describe fft from wav file using matlab
set allows for an OFDM transmission
- This simulation scr ipt set allows for an OFDM transmission to be simulated. Imagetx.m generates the OFDM signal, saving it as a windows WAV file. This allows the OFDM signal to be played out a sound card and recorded back. Imagerx.m decodes the