Hi, I'm not sure if the noise I hear is similar but I have noticed my Honda Mk2 (2011) sounds something like that when I over-stress the engine at low revs. It was explained to me in the past that it's something to do with valves.
I usually drive on the higher side, using each gear a bit more as I like the sound and pull it has in 3-5k range
that comes with fairly poor mpg of 46-52 depending on how much motorway travel is involved so I almost never get to hear it.