How to save regular audio files as variables with for loop?

I want to save regular audio files as aa1.wav, aa2.wav ... aai.wav in a variable via audioread syntax.

For example,

load handel.mat
for i=1:2
    Y{i} = audioread('aa1.wav'); 
end

How can I do?

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F