how can i add files to a directory dynamically

Hi all

I am looking for a way to add files in a directory dynamically.First of all,i will check if a directory exists or not,depending on that it will create a directory.

Then i want to add .wav files which i got from database into this directory and use these .wav files form this directory in the code.

How can i achieve that?.

Looking forward for suggestions.Thanks a lot in advance.
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