That sounds more like a purge valve/ purge solenoid then a tensioner. They make a clicking/ tapping noise which people often mistake for a valve tap or other issues

I'm not to familiar with Honda purge valve. Some cars it's  normal to make noise others aren't. I cannot say with certainty.  I believe it's located in the driver side right under the intake boot/ throttle body. listen to that area. Get a screw driver and with car running place tip on valve and handle to ear. You should be able to tell if that is it. Ive had 2 Hondas, I had a 2000 crv and a 2009 civic. Both of them sounded very similar to yours. Honda get chatty as they get older. You have to do valve lash adjustments. Which now that I listen again to video it sounds more like that.