Reading .au files from inside a folder.

Hi, I have been using Matlab from sometime. My question is, I have a lot of .au files which i should read and convert into frequencies. I have these set of files inside a folder. How do i use audioread for reading these files ? Or do i have to use some other function for reading these files? Thanks in advance.

[per isakson]

See How can I process a sequence of files?