zcr_cnt.m

来自「这是一个用于语音信号处理的工具箱」· M 代码 · 共 21 行

function [count]= zcr_cnt(data, thresh);


nmax = thresh * max(data)/100;
nmin = thresh * min(data)/100;

npoint=length(data);
count=0;

for i=1:npoint,
	if data(i) > nmin & data(i) < nmax
		data(i)=0;
	end
end

for i=1:npoint-1,
	if data(i)*data(i+1) < 0
		count=count+1;
	end
end