Issue creating a probability density function for audio file
显示 更早的评论
Hello. Thank you in advance.
I want to generate probability density functions of amplitudes from audiofiles. However, when I use the pdf function, I get a vector of NaNs, and I do not know why. It seems to me it should be a very simple code, so I am not sure what I am missing here. See below.
[f,fs] = audioread('sound_file.wav'); %read in audio
x = sum(f,2); %average 2 channels to get single vector
y = pdf('Normal',x); %get PDF values
采纳的回答
Walter Roberson
2020-2-7
0 个投票
Normal distribution expects two parameters, the mean and the standard deviation. The defaults for those parameters are both 0, so Normal distribution with 0 mean and 0 standard deviation. But 0 standard deviation on a normal distribution leads to NaN for all values.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Birnbaum-Saunders Distribution 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
