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DTMF

于 2014-03-02 发布文件大小:2KB

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基于matlab的DTMF数字拨号音合成，通过的简单的时域连接，用于进一步分析合成效果。DTMF2是分析部分，用于显示时域波形，频谱图和语谱图。(Based on the synthesis matlab DTMF digit dialing tone, and connected by a simple time domain, for further analysis synthesis results. DTMF2 the analysis section, time-domain waveform, spectrum and spectrogram displays the)

文件列表：

DTMF.m,1242,2014-01-19
DTMF2.m,1486,2014-01-31

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cbl
 利用fft()进行快速傅立叶变换，得到频谱，画出正弦函数及其频谱  找出频谱中使得Y轴取最大值时的估计频率记为ft  加入白噪声，绘出信噪比和均方误差的关系曲线 ( using fft () for fast Fourier transformation, spectrum, to draw the sine function and its spectrum  find the spectrum makes the Y-axis maximum value when the estimated frequency is denoted by ft  adding white noise, SNR plot and mean square error curve)

2011-01-08 10:52:46下载

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DTMF

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