For loops in strings

Hello everyone. I am trying to make a for loop for my project. I am getting audiofiles named 1.wav to 50.wav . I am trying to calculate their energys. But i am changing audio names by my hand. Can I make a loop about it ? I tried that but not working :

for i=1:50
    [data,fs]=audioread(['Sound(i).wav']);
end 
energy(u)=0
a=length(data);
for l=1:a
    energy(l)=(data(l)^2)+energy(l);
end 

Answer 1

[KSSV]

wavFiles = dir('*.wav') ;
N = length(wavFiles) ; 
data = cell(N,1) ; 
fs = cell(N,1) ; 
for i=1:N
    [data{i},fs{i}]=audioread(wavFiles(i).name);
end 

You can access the data{1}, data{2}, ...data{N}

[Mert Bilici]

Thanks a lot!!!

Answer 2

[Jan]

energy = zeros(1, 50);
for k = 1:50
    [data, fs] = audioread(sprintf('Sound(%d).wav', k));
    energy(k)  = sum(data.^2);   % ??? + energy(l);
end 

[Mert Bilici]

Thank you!!!