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The MATLAB file implements a Linear Predictive (LP) analysis and synthesis system for speech. There is an additional functionality of (i) Bandwidth Modification (ii) Denoising Filter
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选择三个不同频段的信号对其进行频谱分析，根据信号的频谱特征设计三个不同的数字滤波器，将三路信号合成一路信号，分析合成信号的时域和频域特点，然后将合成信号分别通过设计好的三个数字滤波器，分离出原来的三路信号，分析得到的三路信号的时域波形和频谱，与原始信号进行比较，说明频分复用的特点。-Choice of three different signal-band spectral analysis carried out, according to the characteristics of the
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此方案基于全极点语音产生模型，编码过程简述如下：首先通过线性预测分析方法提取声道滤波器参数；其次通过合成分析法确定最佳激励矢量；最后将滤波器参数和最佳激励矢量进行编码传输。-This program is based on all-pole speech production model, the encoding process summarized as follows: First, by linear prediction analysis to extract channel filt
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straight是一个高质量的语音识别、转换、合成工具，构建于matlab编程工具。-STRAIGHT[1] is a high-quality speech analysis, modification and synthesis system based on a simple channel
VOCODER concept (in other words a source filter model).
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WFB2DEC 2-D Wavelet Filter Bank Decomposition
y = wfb2dec(x, h, g)
Input:
x: input image
h, g: lowpass analysis and synthesis wavelet filters
Output:
x_LL, x_LH, x_HL, x_HH: Four 2-D wavelet subbands
Make sure filt
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完全重构以及近似完全重构滤波器组设计程序。
-The goal is to design M analysis and synthesis FIR filters so that the analysis filters satisfy some frequency specifications and the filter bank(almost) meets the perfect reconstruction (PR) conditions.
The algorithm can
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