wavelet coefficients centroid of audio signal
5 次查看(过去 30 天)
显示 更早的评论
i applied wavedec for an audio signal.,after that i have to calculate energy and centroid of the wavelet coefficients(approximation and detail)for all frames of the audio signal.,i dnt know how to do.,can anyone help me?
回答(1 个)
Wayne King
2012-10-13
You already have this thread open:
You say in that post that you need to find one "centroid" for all the detail coefficients including the approximation coefficients. I'm not sure why you would ever want to do but:
load noisdopp;
[C,L] = wavedec(noisdopp,5,'sym4');
mean(C)
The above gives you the mean over all the coefficients, both approximation and details.
2 个评论
Wayne King
2012-10-13
Then you should show us where that paper is, or include the equation in your post.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Simulation, Tuning, and Visualization 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!