Drive belt makes a clapping sound but is tight

What is your question?

I recently replaced my 2005 honda accord lx k24a4 serpentine belt, I also replaced my alternator as well. Now there is an obnoxious sound as the belt goes around. It doesn't seem to affect performance but it is a bit unnerving. Should I be concerned? I lubricated all the pulleys and it still makes a clap sound on rotation. What's next?

What makes this problem better or worse?

Anytime car is running

How long has your 2005 Honda Accord had this problem?

2 months