How can I find mean crossing irregularity?
1 次查看(过去 30 天)
显示 更早的评论
I have a sound file that contains 144000 data points. Thanks to the buffer language, I was able to break this file into windows. For each of these windows, I'd like to calculate the mean crossing irregularity. If X is the random variable for the interval between two consecutive mean crossing indices, then The ratio of this variable's standard deviation to its mean value is known as mean crossing irregularity. I'm trying to figure out what this ratio is for both of these windows. Can you help me?
sound=structWheeze(2,1).SoundData;
piece = 400;
overlap = 200;
frames = buffer(sound, piece, overlap);
for k1 = 1:fix(size(frames,2)/10)
x = 1:length(sound);
zci = @(v) find(v(:).*circshift(v(:), [-1 0]) <= 0);
dy = zci(sound);
for k1 = 1:size(dy,1)-1
b = [[1;1] [x(dy(k1)); x(dy(k1)+1)]]\[sound(dy(k1)); sound(dy(k1)+1)];
x0(k1) = -b(1)/b(2);
end
end
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!