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lpc_spectrum.m
Upload User: shodew
Upload Date: 2014-10-29
Package Size: 6k
Code Size: 0k
Category:
Speech/Voice recognition/combine
Development Platform:
Matlab
- function Hw=lpc_spectrum(s,p,num)
- %该函数的功能是利用预测系数求语音产生模型的频率响应,也称LPC谱
- n=length(s);
- a=lpc_coefficients(s,p);
- b=[1,-a',zeros(1,num-p-1)]; %对1 -a1 -a2 ...-ap进行补0操作
- Hw= abs(ones(1,num)./fft(b));
- Hw=abs(Hw); %取模求幅值